Practice Test

Q1) Clonal cell lines can be obtained by: Show Answer

Q2) Which is non-invasive technique of genetic counselling? Show Answer

Q3) Who among the following discovered the enzyme restriction endonuclease? Show Answer

Q4) The first hormone artifically produced by culturing bacteria is: Show Answer

Q5) When the number of genes increase in response to some signal, the effect is called: Show Answer

Q6) A number of bacteria with recombinant DNA of same type form: Show Answer

Q7) Restriction enzyme may be used for: Show Answer

Q8) When scientists make an animal superior by view of genotype, introducing some foreign genes in it, the phenomenon is called: Show Answer

Q9) Many copies of a DNA molecule in a test tube are procured by: Show Answer

Q10) Genetic diagnosis by DNA testing: Show Answer

Q11) DNA can be introduced into any cell by: Show Answer

Q12) Bam HI, Eco RI, Sma H are the types of: Show Answer

Q13) The collection of bacteria with gDNA is called: Show Answer

Q14) Which one of the following pairs is correctly matched? Show Answer

Q15) Which one of the following scientists developed the process of DNA fingerprinting? Show Answer

Q16) DNA fingerprinting method is very useful for: Show Answer

Q17) In DNA fingerprinting: Show Answer

Q18) In Northern blotting RNAs are separated by gel electrophoresis and the RNA bands are transferred onto a membrane of: Show Answer

Q19) In Southern blotting is separated by gel electrophoresis: Show Answer

Q20) Protein engineering is used to study the proteins to compare the catalytic properties of: Show Answer

Q21) Transgenic animals are produced by injecting foreign gene into the: Show Answer

Q22) Western blotting technique was developed by: Show Answer

Q23) The process used for separation of protein in polyacrylamide gel is called: Show Answer

Q24) What is C-DNA? Show Answer

Q25) Which of the following organelles is associated with genetic engineering? Show Answer

Q26) The minimum length of cistron in base pairs which synthesizes a polypeptide of 50 amino acids is: Show Answer

Q27) The recent techniques used for separating fragments of DNA is: Show Answer

Q28) Plasmids are autonomously replicating mini chromosomes found in: Show Answer

Q29) Genetic engineering is possible because: Show Answer

Q30) In bacteria, genes for antibiotic resistance are usually located in: Show Answer

Q31) Which one of the following is related with genetic engineering? Show Answer

Q32) Improvement of genotype of an organism by addition of some foreign genes is: Show Answer

Q33) Two bacteria found to be very useful in genetic engineering experiments are: Show Answer

Q34) Term hybridoma implies: Show Answer

Q35) Restriction enzyme are isolated chiefly from: Show Answer

Q36) Which of the following statement is incorrect? Show Answer

Q37) Harris and J. F. Watkins in 1965 first time reported the fusion of following cell lines to form hybrids: Show Answer

Q38) The genetic recombinants obtained by insertion of plasmid into 1 phage genome is called: Show Answer

Q39) Synthetic DNA or sDNA is: Show Answer

Q40) A technique used to make numerous copies of a specific segment of DNA quickly and accurately: Show Answer

Q41) Human genome contains about: Show Answer

Q42) A collection of organisms, usually viruses, bacteria or yeast, which have been transformed by the addition of extra genes from another species: Show Answer

Q43) Colony hybridization procedure for identification of plasmid clones is called: Show Answer

Q44) TATAATG sequence near the RNA start point of prokaryotic promoter is: Show Answer

Q45) Which one of the following scientists got the Nobel Prize for his invention polymerase chain reaction (PCR)? Show Answer

Q46) An artificial process of infecting cells with naked viral DNA is: Show Answer

Q47) Producing a 'giant mouse' in the laboratory was possible through: Show Answer

Q48) One of the following is transgenic of organisms: Show Answer

Q49) An environmental agent that triggers transcription from an operon is a: Show Answer

Q50) Which of the following would not be used in preparing recombinant DNA? Show Answer

Q51) Ability to absorb foreign DNA is: Show Answer

Q52) RNA processing is: Show Answer

Q53) There are special proteins that help to open up DNA double helix infront of the replication fork. These proteins are: Show Answer

Q54) Who got the Noble prize in medicine for their discovery of 'G-proteins' and the role of these proteins in the cells: Show Answer

Q55) A gene is made up of: Show Answer

Q56) The message from nuclear DNA for the synthesis of specific cytoplasmic protein is carried by: Show Answer

Q57) Exonucleases cleaving nucleotides one at a time from the end of the polynucleotide chain are: Show Answer

Q58) Complete tranduction is: Show Answer

Q59) Inducible/lac operon system operates in: Show Answer

Q60) Nif genes is a group of proteins: Show Answer

Q61) Nitrogen fixing genes are called: Show Answer

Q62) Mishandling of genetic engineering may cause: Show Answer

Q63) Genetic engineering is helpful in: Show Answer

Q64) Human Genome project was the thought of: Show Answer

Q65) The genome map was produced under human genome project in: Show Answer

Q66) Total genes in the human genome is approximately: Show Answer

Q67) Genes that are involved in turning on or off the transcription of a set of structural genes are called: Show Answer

Q68) Transgenic organisms are produced by: Show Answer

Q69) The basis for DNA fingerprinting is: Show Answer

Q70) Genetically bacteria have been successfully used in the commercial production of: Show Answer

Q71) Which of the following is associated with genetic engineering? Show Answer

Q72) PCR stands for: Show Answer

Q73) Enzyme used in PCR is: Show Answer

Q74) Yeast has become important in genetic engineering because it: Show Answer

Q75) Gene for cloning may be chemically synthesized: Show Answer

Q76) You are attempting to introduce a gene that imparts larval moth resistance to bean plants. Which of the following vectors are you most likely to use? Show Answer

Q77) The genome of Caenorhabditis elegaus consists of: Show Answer

Q78) Taq polymerase enzyme is found in: Show Answer

Q79) Petroleum-lysing bacteria are being engineered for the removal of oil spills. What is the most realistic danger of these bacteria to the environment? Show Answer

Q80) An attenuated virus: Show Answer

Q81) Which of the following is a difficulty in getting prokaryotic cells to express eukaryotic genes? Show Answer

Q82) Restriction endonucleases are used as: Show Answer

Q83) A somatic plant cell has potential to develop into a full plant. This is called: Show Answer

Q84) Enzymes breaking nucleic acids into nuleotides are called: Show Answer

Q85) Recombinant DNA technology is related with: Show Answer

Q86) Cosmid is: Show Answer

Q87) Match the correct one: Show Answer

Q88) Plasmids is used as carrier because: Show Answer

Q89) The Ti plasmid used in genetic engineering is obtained from: Show Answer

Q90) The function of polymerase chain reaction (PCR) is: Show Answer

Q91) Genetically engineered bacterium used in production of: Show Answer

Q92) Abnormal gene is replaced by normal gene through: Show Answer

Q93) In genetic engineering, the terms vector is applied for: Show Answer

Q94) Gene therapy involves: Show Answer

Q95) Which of the following enzyme is used in genetic engineering? Show Answer

Q96) The transgenic animals are those which have: Show Answer

Q97) Known sequence of DNA that is used to find complementary DNA strand is: Show Answer

Q98) Totipotency in cell is: Show Answer

Q99) The nuclease enzyme, which begins its attack from free end of a polynucleotide, is? Show Answer

Q100) Reverse transcriptase: Show Answer

Q101) Bovine spongiform encephalopathy disease is equal to: Show Answer

Q102) A clone of sheep Dolly has been made by: Show Answer

Q103) Which one of the following bacteria has found extensive use in genetic engineering work in plants? Show Answer

Q104) Variable number of tandem repeats (VTNRs) in the DNA molecule are highly useful in: Show Answer

Q105) The first clone animal of the world is: Show Answer

Q106) In transgenics, the expression of transgene in the target tissue is known by: Show Answer

Q107) DNA fingerprinting is related to: Show Answer

Q108) Which of the following is specifically used in genetic engineering? Show Answer

Q109) Molecular scissors, which cut DNA at specific site: Show Answer

Q110) Plasmids are extrachromosomal circular DNA molecules: Show Answer

Q111) Identify the plasmid: Show Answer

Q112) Natural genetic engineer is: Show Answer

Q113) The most thoroughly studied of the known bacteria-plant interaction is the: Show Answer

Q114) What does Bt stand for the popular crop Bt cotton? Show Answer

Q115) DNA fingerprinting techniques was first developed by: Show Answer

Q116) What is the first step in Southern Blot technique? Show Answer

Q117) An example of gene therapy is: Show Answer

Q118) The total number of nitrogenous bases in human genome is estimated to be about: Show Answer

Q119) Name of the drug used in cancer treatment produced by using biotechnology is: Show Answer

Q120) Which of the following pairs is correctly matched? Show Answer

Q121) Somaclonal variation can be obtained by: Show Answer

Q122) The enzyme used for cutting DNA segment in genetic engineering is: Show Answer

Q123) Widely used tool in genetic engineering of crop plants is: Show Answer

Q124) Which one of the following hydrolyses internal phosphodiester bonds in a polynucleotide chain? Show Answer

Q125) There is a restriction endonuclease called EcoRI. What does "co" part in it stand for? Show Answer

Q126) Agarose extracted from sea weeds finds use in: Show Answer

Q127) In DNA fingerprinting which of the following is true? Show Answer

Q128) Matching sequence of DNA between two evidences, one of the criminal with the suspect is known as: Show Answer

Q129) A technology which has found immense use in solving cases of disputed parentage is: Show Answer

Q130) First hormone prepared by genetic engineering is: Show Answer

Q131) First biochemical to be produced commercially by microbial cloning and genetic engineering is: Show Answer

Q132) Which of the following statement is true? Show Answer

Q133) Protoplasts of two different species are fused in: Show Answer

Q134) c-DNA probes are copied from the messenger RNA molecules with the help of: Show Answer

Q135) Electroporation procedure involves: Show Answer

Q136) A tumour inducing plasmid widely used in the production of transgenic plants in that of: Show Answer

Q137) Common bacterium used in genetic engineering is: Show Answer

Q138) Choose the correct statement with reference to 'Dolly': Show Answer

Q139) Find the incorrect statement: Show Answer

Q140) Production of human protein in bacteria by genetic engineering is possible because: Show Answer

Q141) Two microbes found to be very useful in genetic engineering are: Show Answer

Q142) What is the function of Restriction endonuclease? Show Answer

Q143) A genetically engineered micro-organism used successfully bioremediation of oil spills is a species of: Show Answer

Q144) The construction of the first recombinant DNA was done by using the native plasmid of: Show Answer

Q145) The basis of DNA fingerprinting is: Show Answer

Q146) The linking of antibiotic resistance gene with the plasmid vector became possible with: Show Answer

Q147) Gel electrophoresis is used for: Show Answer

Q148) Which one of the following palindromic base sequences in DNA can be easily cut at about the middle by some particular restriction enzyme? Show Answer

Q149) An improved variety of transgenic basmati rice: Show Answer

Q150) Genetic engineering has been successfully used for producing: Show Answer

Q151) The genetically-modified (GM) brinjal in India has been developed for: Show Answer

Q152) Restriction enzymes are used in genetic engineering because Show Answer

Q153) Process by which we can add or delete certain gene is Show Answer

Q154) Which type of bond is formed by the sticky ends with their complementary counterparts? Show Answer

Q155) Since DNA has a ______ charge, it moves towards the _____ electrode of the electrophoretic chamber Show Answer

Q156) What must be done before placing DNA into the electrophoretic chamber? Show Answer

Q157) How many major types of restriction endonucleases have been recongnised? Show Answer

Q158) X technique is now routinely used to detect HIV in suspected AIDS patients. It is being used to detect mutations in genes in suspected cancer patients too. It is a powerful technique to identify many other genetic disorders. Identify X Show Answer

Q159) Which of the following is known as chemical knife of DNA? Show Answer

Q160) The type of bond formed by DNA ligase between adjacent nucleotides is Show Answer

Q161) Which statement is wrong? Show Answer

Q162) The procedure through which a piece of DNA is introduced in a host bacterium is called Show Answer

Q163) Which of the following has the ability to transform normal cells into cancerous cells in animals? Show Answer

Q164) Which of the following is not applicable to Agrobacterium tumifaciens? Show Answer

Q165) Insertional inactivation is related to Show Answer

Q166) For transformation with recombinant DNA, the bacterial cells must first be made 'competent' which means Show Answer

Q167) Which of the following method can be used for making the bacterial cell 'competent'? Show Answer

Q168) Which of the following techniques can be used to introduce foreign DNA into cell? Show Answer

Q169) During heat shock to the bacterium, the temperature used for giving thermal shock is Show Answer

Q170) Which of the following enzyme is used in case of fungus to cause release of DNA along with other macromolecules? Show Answer

Q171) During isolation of DNA, addition of which of the following causes precipitation of purified DNA? Show Answer

Q172) Which of the following is the correct sequence of PCR or polymerase chain reaction? Show Answer

Q173) The most commonly used bioreactor is of stirring type. The stirrer facilitates Show Answer

Q174) Which of the following palindromic sequence is recognize by EcoRI? Show Answer

Q175) During gel electrophoresis for separation of DNA fragment Show Answer

Q176) Fill up the blanks -
A. When cut by the same restriction enzyme, the resultant DNA fragments have the same kind of _____ and these can be joined together end-to-end using ______.
B. Disruption of the cell membranes can be achieved by treating the bacterial cells plant or animal tissue with enzymes such as ______ (bacteria), _____ (plant cells) and ______ (fungus).
C. If any protein encoding gene is expressed in a heterologous host, it is called a _____.
D. In gel electrophoresis, the separated DNA fragments can be seen only after staining the DNA with a compound known as ________ followed by exposure to UV radiation. Show Answer

Q177) Fill up the blanks -
A. The construction of the first recombinant DNA emerged from the possibility of linking a gene encoding antibiotic resistance with a native _____ of _____.
B. Hind II always cut DNA molecules at a particular point by recognizing a specific sequence of ______ base pairs. This specific sequence is known as _____ for Hind II.
C. The ______ in DNA is a sequence of base that reads same on the two strands when orientation of reading is kept the same.
D. ______, a pathogen of several dicot plants is able to deliver a piece of DNA known as ______ to transform normal plant cells into tumor cells. Show Answer

Q178) Identify the true statements -
A. The first recombinant DNA was constructed by using a piece of DNA from a plasmid carrying antibiotic resistance gene in the bacterium Salmonella typhimurium and linked it to the plasmid of E. coli.
B. Cohen and Boyer are known as father of genetic engineering.
C. When cut by the same restriction enzyme, the resultant DNA fragments have the same kind of sticky ends and these can be joined together using DNA ligases.
D. Endonucleases remove nucleotides from the ends of the DNA whereas exonucleases make cuts at specific positions within the DNA.
E. Presence of more than one recognition sites within the vector will generate several fragments, which will complicate the gene cloning.
F. Humulin was the first recombinant DNA, based product, produced and marketed in India.
G. YAC vectors contain the telomeric sequence the centromere and autonomously replicating sequence from yeast chromosomes.
H. Alkaline phosphatase, is used to prevent unwanted self ligation of the vector DNA molecules in procedures of DNA technology.
I. pBR322 vector was the first artificial ideal vector constructed by Boliver and Rodriguer.
J. Plasmid DNA is coated with histone proteins and can act as genetic factor. Show Answer

Q179) Pairing of fragments derived from DNA is a process called Show Answer

Q180) The controlled use of biological agents, such as micro-organisms or cellular components, for beneficial use is called Show Answer

Q181) The experimental manipulation of DNA of different species, producing recombinant DNA is known as Show Answer

Q182) Which of the following is used as cloning vehicle? Show Answer

Q183) The tumour-inducing capacity of Agrobacterium tumifacines is located in large extrachromosomal plasmids called Show Answer

Q184) Which enzyme is used as gum to join ends of DNA? Show Answer

Q185) Which one of the following restriction endonuclease is obtained from Escherichia coli? Show Answer

Q186) A bioreactor (fermenter) refers to Show Answer

Q187) Autonomously replicating circular extrachromosomal DNA is called Show Answer

Q188) The first restriction endonuclease reported was Show Answer

Q189) Which one is incorrect? Show Answer

Q190) DNA fragments can be separated by a technique known as Show Answer

Q191) T-DNA is found in Show Answer

Q192) Which of the following methods are used to introduce alien DNA Show Answer

Q193) Which enzymes are used to break the cell to release DNA? Show Answer

Q194) Which enzyme is used to join cut DNA? Show Answer

Q195) Taq DNA polymerase enzyme is obtained from Show Answer

Q196) Which is incorrect? Show Answer

Q197) If a protein encoding gene is expressed in a heteroolgous host it is called Show Answer

Q198) Which of the following are required to facilitate cloning into a vector? Show Answer

Q199) Which is incorrect? Show Answer

Q200) Which of the following has been used as cloning vector? Show Answer

Q201) A device in which substances are treated to stimulate transformation by living cells is called Show Answer

Q202) Which of the following has helped in development of biotechnology? Show Answer

Q203) In which country first artificial cultivation of mushroom started? Show Answer

Q204) Which is not true for stirred tank fermentation? Show Answer

Q205) Which statement is incorrect? Show Answer

Q206) During DNA purification, which enzyme is used to treat plant cells? Show Answer

Q207) Restriction endonucleases enzymes are used in genetic engineering because they Show Answer

Q208) Which of the following is/are part(s) of biotechnology?
A. in vitro fertilization
B. synthesis of a gene
C. correcting a defective gene
D. developing a DNA vaccine Show Answer

Q209) The first recombinant DNA was constructed by Show Answer

Q210) Which of the following is/are used in recombinant DNA technology?
A. agarose gel
B. ethidium bromide
C. plasmid vector
D. restriction endonuclease Show Answer

Q211) Which of the following vectors are used to deliver a desirable gene into animal and plant cells, respectively? Show Answer

Q212) Which of the method(s) is/are used to introduce foreign DNA into host cells? Show Answer

Q213) Due to ampicillin resistance gene, one is able to select a transformed cell in the presence of ampicillin. The ampicillin resistance gene in this case is called Show Answer

Q214) Which of the following statements are true about scientist Paul Berg?
A. he is the Father of genetic engineering
B. he transferred gene of SV 40 virus into E. Coli
C. he got the Nobel Prize in chemistry in 1980
D. he developed hybridoma technology for the production of monoclonal antibiotics Show Answer

Q215) Who has got the Nobel Prize for the discovery of type II restriction enzymes?
A. W. Arber
B. H. Smith
C. A. Tiselius
D. D. Nathans Show Answer

Q216) What are the properties of a good vector?
A. it should be ideally more than 10 kb in size
B. it should be able to replicate autonomously
C. it should have suitable marker genes
D. it should not be easy to isolate and purify Show Answer

Q217) Gene gun or particle bombardment gun method of gene transfer utilizes Show Answer

Q218) The areas of application of PCR include
A. production of monoclonal antibodies
B. insertion of recombinant DNA into organism
C. diagnosis of specific mutation
D. detection of plant pathogens Show Answer

Q219) After the formation of the product in the bioreactors, it undergoes through separation and purification processes before a finished product is ready for marketing. These processes are collectively referred to as Show Answer

Q220) Which one is associated with downstream processing?
A. Separation
B. Purification
C. DNA isolation
D. Gene expression Show Answer

Q221) Which of the following restriction enzymes produces blunt ends? Show Answer

Q222) Which of the following is/are concerned with biotechnology? Show Answer

Q223) Restriction endonucleases -
A. are found in bacteria
B. are very useful in genetic engineering
C. cut the DNA at particular sites
D. are used naturally in a bacterial cell to defend against foreign DNA Show Answer

Q224) DNA recombinant technology uses -
A. Restriction endonucleases
B. DNA ligase
C. Cloning vector
D. Electrophoresis Show Answer

Q225) Genetic engineering is Show Answer

Q226) Which of the following is not a tool used to perform genetic engineering Show Answer

Q227) PCR needs Show Answer

Q228) A. Large scale production involves use of bioreactors.
B. Genetic engineering involves the use of restriction endonuclease, DNA ligase appropriate plasmid or viral vectors.
C. Modern biotechnology uses genetically modified organisms.
D. Bacterial cell wall is digested by lysozyme. Show Answer

Q229) A. In elution the separated bands of DNA are cut from agarose gel and extracted from the gel piece.
B. E. coli cloning vector pBR322 shows several restriction, Ori, antibiotic resistance genes and Rop.
C. The down stream processing and quality control testing vary from produced to product.
D. Competent bacterial cell cannot take up the plasmid. Show Answer

Q230) Which statement is incorrect?
A. Genetic engineering is also called recombinant DNA technology.
B. Bacteriophage is not used as vector.
C. MALAYALAM is a palindrome.
D. Ethidium bromide can not be used for staining DNA. Show Answer

Q231) Which one is associated with Agrobacterium tumifaciens?
A. Tumor
B. Ti plasmid
C. T-DNA
D. Cancerous cells Show Answer

Q232) Which steps are involved in genetically modifying an organism?
A. Identification of desirable DNA
B. Insertion of DNA into the host
C. Maintenance of introduced DNA in the host
D. Isolation of recombinant protein Show Answer

Q233) Which statement is true about bioreactor?
A. Bioreactor provides the optimal conditions for obtaining the desired product
B. Raw materials are biologically converted into specific products
C. A stirred-tank reactor is horizontal in shape
D. Large volume of cultures cannot be processed Show Answer

Q234) Restriction endonucleases hydrolyzes polynucleotide from Show Answer

Q235) Most common reporter gene whose product can be directly visualized in transformed cells is Show Answer

Q236) For a plasmid to be a cloning vector, the minimum numbers of elements required are Show Answer

Q237) Which of the following is incorrect about reporter gene Show Answer

Q238) DNA of a bacterium is not cleaved by its own restriction enzymes because the recognition DNA sequences are Show Answer

Q239) Agrobacterium tumefaciens is an effective vector for use with Show Answer

Q240) The first nuclear transplant from an animal cell into an enucleated egg that produced a normal offspring was performed in Show Answer

Q241) Recombinant DNA bearing ampicillin resistance gene is passed in E. coli. The latter are spread on agar plates containing ampicillin. Then Show Answer

Q242) A mouse in which one particular gene has been replaced by its inactivated form generated in vitro is called Show Answer

Q243) Which of the following tools of recombinant DNA technology is incorrectly paired with its use? Show Answer

Q244) In recombinant DNA methods, the term vector refers to Show Answer

Q245) Which of the following is not component of yeast artificial chromosome Show Answer

Q246) Restriction endonucleases are enzymes that -
P. cleave the 5' terminal nucleotides from duplex DNA molecules
Q. make sequence specific cuts in both strands of duplex DNA molecules
R. promote circularization of the duplex DNA molecule by removal of the 5' terminal nucleotides
S. generate 3'-hydroxyl and 5'-phosphate ends in the cut DNA strands Show Answer

Q247) Elution is a method applied for Show Answer

Q248) A plant genetic engineer wishes to transfer and express a gene from sunflower into beans. Which of the following would be the vector of choice? Show Answer

Q249) Terminal transferase is used Show Answer

Q250) Which statement about restriction enzymes are false? Show Answer

Q251) Restriction-modification systems of bacteria exists to Show Answer

Q252) Which of the following is a desirable characteristic for a cloning plasmid? Show Answer

Q253) Eukaryotic genes may not function properly when cloned into bacteria because of Show Answer

Q254) Restriction endonucleases are Show Answer

Q255) Which statement correctly describes sequential steps in cDNA cloning? Show Answer

Q256) The following are useful to introduce genes into crop plants except Show Answer

Q257) Which one of these statements about the applications of gene cloning is false? Show Answer

Q258) Cosmid vectors are used for constructing libraries of DNA fragments of eukaryotes because they Show Answer

Q259) Which of the following is not true about pBR322 vector? Show Answer

Q260) The presence of a plasmid in a bacterial culture is usually determined by Show Answer

Q261) Which of the following processes require energy? Show Answer

Q262) To be a cloning vector, a plasmid does not require Show Answer

Q263) In agarose gel electrophoresis Show Answer

Q264) Shotgun approach is used for the construction of Show Answer

Q265) pBR322 which is frequently used as a vector for cloning gene in E. coli is Show Answer

Q266) Select the correct option which shows the most appropriate temperatures of these different steps of PCR mechanism Show Answer

Q267) Which of the following statement is not correct? Show Answer

Q268) Which of the following statement is not correct about cloning vector Show Answer

Q269) Which of the following statement is not correct Show Answer

Q270) Which of the following is the part of biotechnology Show Answer

Q271) European Federation of Biotechnology (FEB) has given a definition of biotechnology that Show Answer

Q272) The enzymes responsible for restricting the growth of bacteriohage in 'Escherichia coli' is Show Answer

Q273) Which of the following statement is not true Show Answer

Q274) The most common tool of genetic engineering Show Answer

Q275) Antibiotic resistance gene present on BamHI site of a E. coli cloning vector is Show Answer

Q276) Selection of recombinants due to inactivation of antibiotics is a cumbersome procedure because Show Answer

Q277) In E. coli cloning vector PBR322. ROP codes for Show Answer

Q278) The bacteria associated with plant genetic engineering are Show Answer

Q279) Direct visual selection method for the selection of recombinant host cells on the basis of their inability to produce colour in the presence of chromogenic substrate can be applied if the vector used is a Show Answer

Q280) Which of the following vectors is/are used for cloning in eukaryotic organisms?
A. Plasmids
B. Bacteriophages
C. Ti plasmid of Agrobacterium tumifaciens
D. Disarmed retroviruses Show Answer

Q281) Which of the following features cannot be associates with Ti plasmid of Agrobacterium tumifaciens which is modified into a cloning vector? Show Answer

Q282) If recombinant DNA is inserted within the coding sequence of enzyme galactosidase, which of the following will occur in case of non-recombinants? Show Answer

Q283) Following enzymes/techniques are used in the process of recombinant DNA technology -
A. EcoRI to cut the isolated genome
B. DNA ligase
C. Protease and ribonuclease for removal of proteins and RNA from DNA
D. Production of reombinant hosts
E. Lysozyme for isolation of the genetic material (DNA)
F. Gel electrophoresis for separation and isolation of DNA fragments
Mark the correct sequence of their use Show Answer

Q284) In case of pBR322, which of the following act as selectable markers? Show Answer

Q285) After completion of biosynthetic stage, the product has to be subjected through a series of processes before it is ready for marketing as finished product. This series of processes is called Show Answer

Q286) Two enzymes responsible for restricting the growth of bacteriophage in Escherichia coli were isolated. One was methylase and other was restriction endonuclease. What was the significance of methylase? Show Answer

Q287) Agrobacterium tumefaciens -
A. Acts as natural genetic engineer
B. Carries vie region which is essential for insertion of T-DNA into host cells
C. Has been used to transfer genes for 'RNA interference' in plants
Mark the correct statements Show Answer

Q288) A foreign DNA and plasmid cut by the same restriction endonuclease can be joined to form a recombinant plasmid using Show Answer

Q289) Isolation of DNA from a fungal cell involves the use of enzyme Show Answer

Q290) Tissue culture technique has been biotechnologically successful in production of: Show Answer

Q291) Estimated number of antibiotics produced by Streptomyces griseus is: Show Answer

Q292) The first relatively pure enzyme was prepared by: Show Answer

Q293) Shikonin is the name of: Show Answer

Q294) Yeast is a good source of: Show Answer

Q295) Agar agar is obtained from: Show Answer

Q296) The conditions which favour fermentation are: Show Answer

Q297) Penicillin is obtained from: Show Answer

Q298) The vinegar means: Show Answer

Q299) Penicillin was first discovered by: Show Answer

Q300) Yeast is used in the production of: Show Answer

Q301) First antibiotic isolated was: Show Answer

Q302) Streptomycin was first isolated in 1944-45 by: Show Answer

Q303) In the production of leavened bread the following is used: Show Answer

Q304) Streptomycin is produced by: Show Answer

Q305) Who was the first to isolate streptomycin? Show Answer

Q306) Chloromycetin is produced by: Show Answer

Q307) Terramycin is obtained from: Show Answer

Q308) Enzymes can be immobilised by: Show Answer

Q309) The number of enzymes known today is approximately: Show Answer

Q310) A bioreactor refers to: Show Answer

Q311) Germinating barley seeds are employed in the preparation of: Show Answer

Q312) Cells obtained from cancerous tumours are known as: Show Answer

Q313) As in Hepatitis B vaccine: Show Answer

Q314) Rennet enzyme was purified by: Show Answer

Q315) The enzyme diastase was identified by: Show Answer

Q316) Which enzymes are used for manufacturing detergents? Show Answer

Q317) The enzyme TPA is used to: Show Answer

Q318) Hybridomas are employed for: Show Answer

Q319) Pasteurization makes foodstuffs free from: Show Answer

Q320) Number of antibiotics isolated till today is: Show Answer

Q321) Tissue plasminogen activator is: Show Answer

Q322) For rapid production of alcohol, immobilised yeast cells are kept in: Show Answer

Q323) Dextran is used in: Show Answer

Q324) Steroids are used in: Show Answer

Q325) Utility of fungi for steroid conversion was demonstrated by: Show Answer

Q326) Humulin is: Show Answer

Q327) Humulin was launched by: Show Answer

Q328) The micro-organism involved in making bread is: Show Answer

Q329) Which of the following organic acids was produced by fermentation? Show Answer

Q330) Most of the Eubacteriale antibiotics come from: Show Answer

Q331) Restriction enzyme was discovered by: Show Answer

Q332) Hybridomas are a result of fusion of: Show Answer

Q333) Kohler and Milstein developed Biotechnology for the production of: Show Answer

Q334) Enzymes used in detergents are: Show Answer

Q335) Torulopsis utilis is: Show Answer

Q336) Antibiotics inhibit the growth of or destroy: Show Answer

Q337) If all the bacteria and fungi of the world are destroyed then: Show Answer

Q338) Streptomyces venezuelae is used to obtain: Show Answer

Q339) Citric acid is produced by: Show Answer

Q340) The first commercial example of enzyme modification of a protein for human use is: Show Answer

Q341) Which of the following is used for the diagnosis of disease caused by closely related pathogen? Show Answer

Q342) Utilization of living organisms/systems/processes for producing materials useful to human society is known as: Show Answer

Q343) Biotechnology utilizes new organisms developed from present organisms utilizing: Show Answer

Q344) Which of the following is not concerned with biotechnology? Show Answer

Q345) Which of these is used in biotechnology: Show Answer

Q346) Which of the following is used for manufacture of cosmetics? Show Answer

Q347) The technique by which virus detection can be make both in plants and animals is known as: Show Answer

Q348) Streptokinase (TPA) helps in: Show Answer

Q349) The immobilization of enzyme is achieved by: Show Answer

Q350) Interferons are: Show Answer

Q351) Magic bullets are: Show Answer

Q352) Cheese contains: Show Answer

Q353) The hybridoma technique was developed by: Show Answer

Q354) Which one of the following micro-organisms is used for production of citric acid in industries? Show Answer

Q355) Important objective of biotechnology in agriculture sector is: Show Answer

Q356) The main technique involved in agricultural biotechnology is called: Show Answer

Q357) The new strain of bacteria produced by biotechnology in alcohol industry is: Show Answer

Q358) Genetically engineered bacteria have been used in commercial production of: Show Answer

Q359) Which of the following correctly defines a transgenic animal? Show Answer

Q360) Which one of the following is not true about antibiotics? Show Answer

Q361) Rennin used in cheese industry is: Show Answer

Q362) The organism used for alcoholic fermentation is: Show Answer

Q363) A cell coded protein that is formed in response to infection with most animal viruses is called: Show Answer

Q364) Which of the following organelles is related with genetic engineering? Show Answer

Q365) A chemical susbtance derived from a living source that has the capacity to inhibit growth or to destroy microbes is called: Show Answer

Q366) The Central Drug Research Institute (CDRI) is situated in: Show Answer

Q367) Wine and Beer are produced directly by fermentation Brandy and Whisky require both fermentation and distillation because: Show Answer

Q368) The antibiotics obtained from Streptomyces are: Show Answer

Q369) Human insulin has 51 amino acids in two chains. Mark the correct statement: Show Answer

Q370) During "gene cloning" which is called as "gene taxi"? Show Answer

Q371) What does Bt stands for the popular crop Bt cotton? Show Answer

Q372) Name the drug used in cancer treatment produced by using biotechnology: Show Answer

Q373) Use of biology in industrial process and for improving quality of life is called: Show Answer

Q374) What is the reason of formation of embryoid from pollen grain in tissue culture medium? Show Answer

Q375) The technique of obtaining large number of plantlets by tissue culture method is called: Show Answer

Q376) Cultivation of Bt cotton has been much in the news. The prefix Bt means: Show Answer

Q377) In transgenics, expression of transgene in target tissue is determined by: Show Answer

Q378) The Ti plasmid is often used for making transgenic plants. This plasmid is found in: Show Answer

Q379) The first antibiotic was discovered by Show Answer

Q380) Colchicine brings about: Show Answer

Q381) A cybrid is a hybrid carrying: Show Answer

Q382) Biogas produced by anaerobic decomposition used in combustion is mainly due to presence of: Show Answer

Q383) Which of the following is not an antibiotic? Show Answer

Q384) Which raw material is used in fermentation process of making beer? Show Answer

Q385) Which one of the following is the correctly matched pair of a product and the microorganism responsisble for it? Show Answer

Q386) Hybridoma technology has been successfully used in: Show Answer

Q387) India's wheat yield revolution in the 1960s was possible primarily due to: Show Answer

Q388) A self-fertilizing trihybrid plant forms: Show Answer

Q389) Bacillus thuringiensis (Bt) strains have been used for designing novel: Show Answer

Q390) Which of the following is generally used for induced mutagenesis in crop plants? Show Answer

Q391) An institution where valuable plant material likely to become irretrievably lost in the wild or in cultivation is preserved in a viable condition is known as: Show Answer

Q392) Hirudin is: Show Answer

Q393) Golden rice is a promising transgenic crop, when released for cultivation, it will help in: Show Answer

Q394) Which antibiotic inhibits interaction between tRNA and mRNA during bacterial protein synthesis? Show Answer

Q395) Select the wrong statement: Show Answer

Q396) A transgenic food crop which may help in solving the problem of night blindness in developing countries is: Show Answer

Q397) Main objective of production/use of herbicide resistant GM crop is to: Show Answer

Q398) Human insulin is being commercially produced from a transgenic species of: Show Answer

Q399) What is antisense technology? Show Answer

Q400) The process of RNA interference has been used in the development of plant resistant to: Show Answer

Q401) Biotechnology deals with industrial scale production of biopharmaceuticals and biologicals using genetically modified Show Answer

Q402) The application of biotechnology includes all except Show Answer

Q403) Which of the following is not included under the application of biotechnology? Show Answer

Q404) Three critical research areas of biotechnology are -
I. Providing the best catalyst in the form of improved organism usually a microbe or pure enzyme
II. Multiple Ovulation Transfer Technology (MOET)
III. Creating optimal conditions through engineering for a catalyst to act
IV. Downstream processing technologies Show Answer

Q405) Which of the following is for increasing food production? Show Answer

Q406) The crops having cry-genes need Show Answer

Q407) Cry-genes have been introduced in Show Answer

Q408) First transgenic crop is Show Answer

Q409) Bacillus thuringiensis is a bacterium of Show Answer

Q410) Which is not a transgenic plant? Show Answer

Q411) Bt toxin is Show Answer

Q412) Bt is resistant to Show Answer

Q413) Genetically modified tobacco plant with Bt gene is resistant to Show Answer

Q414) I. Recombinant DNA technology is used to improve crop plants by increasing their productivity, by making them more nutritious and by developing disease resistant.
II. Bt cotton is resistant to bollworm infestation.
III. Bacillus thuringiensis form cry protein during any phase of their growth.
IV. Bacillus thuringiensis is not harmed by self Cry protein because of its occurrence as protoxin (inactive).
V. Protoxin Cry protein is changed into active Cry protein in the stomach of insects due to alkaline pH in stomach. Show Answer

Q415) Bt gene produces protein toxin to insect larvae is Show Answer

Q416) A plant expressing a gene from another organisms is Show Answer

Q417) Introduction of transgene will result in Show Answer

Q418) Bt toxin is harmful to insects like Show Answer

Q419) How does Bt toxin kill the larvae of certain insects? Show Answer

Q420) Bt toxin genes are isolated from Bacillus thuringiensis and incorporated into crop plants making them insecticidal. The choice of genes depend upon Show Answer

Q421) Which of the following is correct? Show Answer

Q422) Which of the following is a correct statement? Show Answer

Q423) Bt cotton farming has shown good result in Show Answer

Q424) Several nematodes parasitise Show Answer

Q425) When DNA is transcribed into mRNA, usually the mRNA remains single-stranded, but in some cases an RNA can be made that is complementary to the mRNA. This is called _______ and its main function is to _______. Show Answer

Q426) Which of the following is the source of complementary strand in mRNA silencing Show Answer

Q427) Antisense RNA is Show Answer

Q428) Which of the following nematode infects the roots of tobacco plants and causes a great reduction in yield? Show Answer

Q429) The RNAi stands for Show Answer

Q430) mRNA silencing is called Show Answer

Q431) Fill up the blanks -
At present, about _________ recombinant therapeutics have been approved for human use the world over. In India ______ of these are presently being marketed. Show Answer

Q432) The first human drug made using recombinant DNA technology was Show Answer

Q433) Which of the following statements is false?
I. Insulin was originally extracted from pancreas of slaughtered pigs and cattle
II. Animal insulin is difficult to obtain
III. Animal insulin is identical to human insulin
IV. Non human insulin caused some patients to develop allergy
V. Recombinant DNA allowed scientists to insert a human insulin gene into a bacterial expression vector
VI. Recombinant insulin is actually obtained from E. coli bacterial cell Show Answer

Q434) RNA interference (RNAi) technique has been devised to protect the plants from nematode is silenced by ________ produced by the host plant. Show Answer

Q435) Which of the following peptide chain is removed during maturation of pro-insulin into insulin? Show Answer

Q436) Eli Lilly, an American company prepared two DNA sequences corresponding to A and B, chains of human insulin and introduced them in plasmids of E. coli to produce insulin chains. Chains A and B were prepared separately, extracted and combined by creating Show Answer

Q437) Which step proved to be the main challenging obstacle in the production of human insulin by genetic engineering? Show Answer

Q438) What is the disadvantage of using porcine insulin (from pig) in diabetic patients? Show Answer

Q439) Why insulin not administered orally to diabetic patient? Show Answer

Q440) The first clinical gene therapy was given in 1990 to a 4 years old girl with which of the following enzyme deficiency? Show Answer

Q441) Which of the following could be a permanent cure for treatment of severe combined immunodeficiency (SCID) Show Answer

Q442) Why is repeated transfusions of genetically engineered cells required in SCID patients? Show Answer

Q443) Human gene therapy requires Show Answer

Q444) When a patient with defective DNA was treated, which of the following steps was performed for gene therapy?
I. Lymphocytes were obtained from the patients
II. Lymphocytes are transferred to culture dishes
III. Lymphocytes were transfected with normal ADA genes
IV. The transfected cells are returned to the patients Show Answer

Q445) Which technique would you expect to be completely curative in SCID? Show Answer

Q446) Which of the following is a benefit to having insulin produced by biotechnology? Show Answer

Q447) Following are the steps in one type of gene therapy -
I. Inject engineered cells into patients bone marrow
II. Viral DNA carring the normal allele inserts into chromosome
III. Let retrovirus infect bone marrow cells that have removed from patient and cultured
IV. Insert RNA version of normal allele into retrovirus
Which of the following is correct sequence of steps Show Answer

Q448) Which of the following is correct about ADA? Show Answer

Q449) "Silencing" of mRNA molecule in order to control the production of a harmful protein has been used in protection of plants from Show Answer

Q450) For effective treatment of a disease Show Answer

Q451) Which of the following techniques serve the purpose of early diagnosis?
I. R-DNA technology
II. PCR
III. ELISA
IV. Convential method of diagnosis (serum, urine analysis etc.) Show Answer

Q452) A doctor while operating on an HIV + patient accidentally cut himself with a scalpel. He comes to you, suspecting himself to have contracted the virus which test will you advise him to rule out/confirm his suspicion? Show Answer

Q453) In order for gene therapy to be most effective, genes should be inserted in Show Answer

Q454) A nuclei acid probe might be used to Show Answer

Q455) Which of the following is a critically important tool used in experiments involving DNA hybridization? Show Answer

Q456) A sample of DNA from a person suspected of having sickle-cell anaemia is subjected to DNA hybridization using two probes. One that binds to the normal allele and another that binds to the sickle-cell allele. If both probes bind to the DNA, this individual Show Answer

Q457) PCR is used to Show Answer

Q458) Which of the following is based upon the principle of antigen antibody interaction? Show Answer

Q459) DNA hybridization technique is based on all of the following properties of DNA except Show Answer

Q460) Which one of the following genes is defective in patients suffering from severe combined immuno-deficiency syndrome (SCID)? Show Answer

Q461) A functional ADA cDNA can be introduced into cells of the patients receiving gene therapy by using vector constituted by Show Answer

Q462) Deliberate alteration of genome for treatment of disease is called Show Answer

Q463) Which one is correct? Show Answer

Q464) What might be an advantage of beginning gene therapy prior to birth? Show Answer

Q465) Which of the following is correct? Show Answer

Q466) A correct pair of characteristics of molecular probe is -
A. Very long molecule
B. Double stranded
C. Single stranded DNA or RNA
D. Complementary to part of desired gene Show Answer

Q467) The DNA probe, 3' - GGCTTA, will hybridize with which of the following? Show Answer

Q468) Restriction enzymes were first discovered with observation that Show Answer

Q469) Following are the steps of southern blot procedure -
I. Autoradiography
II. Hybridization with radioactivity nucleic acid (probe)
III. Blotting
IV. DNA fragments are treated to make them single stranded
V. Electrophoresis
VI. Clearing of DNA of restriction endonuclease
VII. Isolation of DNA from sample
The correct sequence is Show Answer

Q470) Which method of cellular defence is common to all eukaryotic organisms? Show Answer

Q471) The technique by which "Dolly" the sheep was obtained is called Show Answer

Q472) Transgenic animals are those which have Show Answer

Q473) Transgenic rats, rabbits, pigs, sheep, cows and fish have produced although over 95 percent of all existing transgenic animals are Show Answer

Q474) Transgenic animals are produced for which of the following purposes?
I. To study how gene are regulated and how they affect the normal functions of body and its development
II. To study of diseases
III. To obtain useful biological product
IV. To test vaccine safety and chemical safety Show Answer

Q475) Bioaugmentations is Show Answer

Q476) In which disease the advancement of genetic engineering has still not been used as clinical cure Show Answer

Q477) Which of the following transgenic protein product has been used to treat emphysema Show Answer

Q478) "Rosie" a transgenic cow known to produce a type of milk which has all the following characteristics except Show Answer

Q479) Rosie was produced in year Show Answer

Q480) GMO/transgenic animal are used in testing safety of polio vaccine before they are used on human? Show Answer

Q481) To test the vaccine safety before its use on human, transgenic ______ are used to test. If successful, _______ are used to test the safety of vaccine Show Answer

Q482) Which of the following is correct? Show Answer

Q483) "Pharming" is a term that describes Show Answer

Q484) Which of the following statements is correct? Show Answer

Q485) Introduction of genetically modified food is not desirable because Show Answer

Q486) How many varieties of rice has been estimated to be present in India? Show Answer

Q487) The use of bioresources by multinational companies and other organizations without proper authorization from the countries and people concerned without compensatory payment is called Show Answer

Q488) Which variety of rice was patented by a U.S. company even though the highest number of varieties of this rice is found in India? Show Answer

Q489) Which step of Government of India has taken to cater to the requirement of patent terms and other emergency provisions in this regard? Show Answer

Q490) Which Indian plants have either been either patented or attempts have been made to patent them by western nations for their commercial use? Show Answer

Q491) A transgene expression can achieve which of the following? Show Answer

Q492) Biopiracy is related to which of the following Show Answer

Q493) Which is being synthesized by genetic engineering? Show Answer

Q494) How many recombinant therapeutics have been approved for human use the world over? Show Answer

Q495) In some children, ADA deficiency can be cured by Show Answer

Q496) Bt toxin is produced by Show Answer

Q497) Today, transgenic models exist for many human diseases which includes -
A. Cancer
B. Cystic fibrosis
C. Rheumatoid arthritis
D. Alzhiemer's disease Show Answer

Q498) It is now possible to breed plants and animals with desired characters through Show Answer

Q499) Main objective of producing herbicide resistant GM crops is Show Answer

Q500) Addition of foreign gene into a crop is Show Answer

Q501) Transgenic bacteria are being used for producing Show Answer

Q502) Transgenic Golden Rice is enriched with high Show Answer

Q503) A transgenic crop has genes for Show Answer

Q504) Reagent used in ELISA test is Show Answer

Q505) A genetically engineered microorganism used successfully in bioremediation of oil spills is a species of Show Answer

Q506) In Bt cotton, a transgenic plant, Bt refers to Show Answer

Q507) Which of the following cannot be patented Show Answer

Q508) Technique of production of monoclonal antibodies was developed by Show Answer

Q509) Genetic modification has -
A. made crops more tolerant to abiotic stresses.
B. reduced reliance on chemical pesticides.
C. increased efficiency of minerals use by plants.
D. enhanced nutritional value of food. Show Answer

Q510) Which of the following statement is not true. Show Answer

Q511) Which of the following statements is/are true about genetically engineered insulin?
A. its name is humulin
B. it was manufactured by American firm Eli Lilly
C. it was launched on 5 July 1983
D. it is produced by the fermentation of appropriate recombinant E. coli clones Show Answer

Q512) The first clinical gene therapy was given for the deficiency of which of the following enzymes? Show Answer

Q513) The actual process of splicing DNA fragments into plasmids takes place in Show Answer

Q514) Which Indian plants have either been patented or attempts have been made to patent them by western nations for their commercial uses.
A. Basmati rice
B. Turmeric
C. Neem
D. None Show Answer

Q515) The decisions regarding the validity of genetic modification research and the safety of introducing genetically modified organisms for public services in India is taken by Show Answer

Q516) The process of RNA interference takes place in all eukaryotic organisms as a method of cellular defense which -
A. Complementary dsRNA
B. Retroposons
C. Single Stranded DNA
D. Protein Show Answer

Q517) Which of following is/are correct?
A. gene therapy has been tested on a large number of patients with a wider variety of inherited genetic disorders, and in numerous cases it has produced a complete cure.
B. genetic engineering has been used to mass produce insuline for diabetes.
C. DNA hybridization is the base pairing of DNA from two different sources.
D. genetic engineering is a technique of plant breeding. Show Answer

Q518) Genetic engineering can be used to -
A. alter the performance of genetically modified organism.
B. produce multiple copies of a desired DNA sequence.
C. Generate many copies of specific genes.
D. Enhance the production of a specific gene product. Show Answer

Q519) Go through the statements.
A. During the processing of the prohormone "proinsulin" into the mature "insulin", C-peptide is removed from proinuslin.
B. In hydridoma technology, B-cells are fused with myeloma cells.
C. Genetic engineering has been successfully used for producing transgenic mice for testing safety of polio vaccin before use in humans.
D. Some of the characteristics of Bt cotton are high yield and resistance to bollworms.
E. An improved variety of transgenic basmati rice gives high yield and is rich in vitamin A.
F. 'Gray biotechnolgoy' is referred to industrial process.
G. The polymerase chain reaction is a technique that is used for in vivo replication of DNA.
How many statement is wrong? Show Answer

Q520) Which of the following is/are product(s) of genetic engineering -
A. Humulin
B. Hepatitis B vaccine prepared by yeast
C. Golden rice
D. Bt cotton Show Answer

Q521) Select the correct statement(s) Show Answer

Q522) Tobacco plants resistant to a nematode have been developed by the introduction of DNA that produced (in the host cells) Show Answer

Q523) The first clinical gene therapy was given for treating Show Answer

Q524) Consumption of which one of the following foods can prevent the kind of blindness associated with vitamin 'A' deficiency? Show Answer

Q525) Molecular probes used for identification of recombinant clone carrying the desired DNA insert can be -
A. denatured double stranded DNA probes
B. double stranded RNA probes
C. protein probes
D. single stranded DNA probes Show Answer

Q526) Plants, bacteria, fungi and animals whose genes have been altered by manipulation are called Show Answer

Q527) GM plants have been useful in increasing Show Answer

Q528) Proteins produced by Bacillus thuringiensis kill Show Answer

Q529) Which one is incorrect? Show Answer

Q530) Which is incorrect? Show Answer

Q531) What is correct about insulin? Show Answer

Q532) Genetically engineered human insulin is manufactured by the use of which of the following microorganisms? Show Answer

Q533) The first hormone produced artificially by culturing bacteria was Show Answer

Q534) Which enzyme is crucial for proper functioning of the immune system? Show Answer

Q535) Which statement is incorrect about gene therapy? Show Answer

Q536) PCR is routinely used to detect Show Answer

Q537) A genetically manipulated organism containing in its genome one or more inserted genes of another species is called Show Answer

Q538) Use of bioresources of other nations without proper authorization of the countries concerned is called Show Answer

Q539) Rules of conduct that may be used to regulate our activities in relation to the biological world is called Show Answer

Q540) Which one is not correct? Show Answer

Q541) Detection of a clone is done by Show Answer

Q542) Bt cotton is resistant to Show Answer

Q543) Plants are more rapidly manipulated by genetic engineering than animal as Show Answer

Q544) Terminator gene Show Answer

Q545) Interferon is a glycoprotein which is Show Answer

Q546) Which statement is correct?
A. Somaclonal variations are the variations observed in plants regenerated from somatic cultures.
B. A transgenic crop is one that contains and expresses a transgene.
C. Chloromycetin is obtained from Penicillium.
D. Bioprospecting is the process of discovery and commercialization of new products based on biological resources. Show Answer

Q547) Which of the following is associated with transgenic animals?
A. Vaccine safety
B. Chemical safety
C. Biopiracy
D. Gene therapy Show Answer

Q548) Which of the following is related with gene therapy?
A. Enzyme replacement therapy
B. Bone marrow transplantation
C. Hybridoma technique
D. Hepatitis Show Answer

Q549) The true statement about Genetic Engineering Approval committee (GEAC) is Show Answer

Q550) In hybridization Show Answer