Practice Test

Q1) Find odd one out. Show Answer

Q2) The terminal structure of stamen is called
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Q3) The lengthwise running groove on anther which
separate theca is called
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Q4) Number of microsporangia in an angiospermic
anther is
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Q5) Microsporangium develops into
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Q6) The innermost layer of microsporangium is
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Q7) Centre of each microsporangium is occupied by
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Q8) The outermost wall layer of microsporangium in
anther is
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Q9) Which of the following perform microsporogenesis?
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Q10) The process of formation of microspores from pollen
mother cell through … A… is called … B... .
Microspores are arranged in … C … . As the anthers
matures and dehydrate, microspores develop into the
…D… .
Fill in the blanks A to D.
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Q11) Microspore tetrad (pollen grains) is the result of
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Q12) Dehiscence of anther in mesophytes is caused by
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Q13) Pollens have two prominant walls which are …A…and …B… . Here A and B refers to
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Q14) Intine is made up of
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Q15) Exine of pollen is made up of
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Q16) Patterns and designs of exine of pollen grains are the characteristic features of
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Q17) Hardest substance in plant kingdom is Show Answer

Q18) The sporopollenin is non-degradable because
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Q19) Which of the following has proved helpful in
preserving pollen as fossils? Show Answer

Q20) The functions of germ pore is/are
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Q21) When the pollen grain is mature, it contains two cells, the … A … and … B ….
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Q22) To achieve 3-celled stage in angiosperms, which cell of the pollen grain divides to form two male gametes ?
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Q23) 60% of the angiosperms shed their pollens at the
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Q24) Male gametophyte in angiosperms produces
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Q25) Pollen tablets are available in the market for
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Q26) Pollen grains can be stored for several years in liquid nitrogen having temperature of Show Answer

Q27) The stalk which joins ovule and placenta is called
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Q28) The ovule of an angiosperm is technically
equivalent to Show Answer

Q29) An ovule is a
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Q30) Chalazal pole is present
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Q31) Mass of cells enclosed by integuments is called
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Q32) Embryo sac is also called Show Answer

Q33) Megasporogenesis is
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Q34) Megaspore mother cell is found near the region of
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Q35) In majority of angiosperms Show Answer

Q36) In angiosperms, microsporogenesis and
megasporogenesis
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Q37) Functional megaspore in an angiosperm develops into
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Q38) Which is the most common type of embryo sac in angiosperms? Show Answer

Q39) Single megasporic development is called
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Q40) In embryo sac, the number of synergid→ egg cell→ central cell→ antipodal cell follows the order
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Q41) Filiform apparatus are
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Q42) Function of filiform apparatus is to

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Q43) How many nuclei are found in female gametophyte?

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Q44) How many cells are found in female gametophyte?
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Q45) Two nuclei within a single cell is
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Q46) Egg apparatus consists of
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Q47) In an embryo sac of anatropous ovule, cells present at chalazal end are called
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Q48) In an angiospermic anatropous ovule, the embryo sac contains certain cells at the micropylar end. These are called
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Q49) Autogamy stands for
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Q50) Cleistogamous flowers are strictly autogamous
because they remain
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Q51) In chasmogamy pollination takes place in
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Q52) Advantage of cleistogamy is Show Answer

Q53) Even in the absence of pollinating agents seed-setting is assured in Show Answer

Q54) Geitonogamy involves Show Answer

Q55) Transfer of pollen grains from the anther to stigma of another flower of different plant is called
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Q56) The most common abiotic pollinating agency in
flowering plant is/ are
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Q57) Characteristic of wind pollinated pollens is, they are
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Q58) The feathery long stigma is found in
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Q59) Flowers, which have single ovule in the ovary and are packed into inflorescence are usually pollinated by
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Q60) Wind pollination is common in Show Answer

Q61) Pollination in water hyacinth and water lily is brought about by the agency of Show Answer

Q62) What type of pollination takes place in Vallisneria?
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Q63) Pollen grain of water pollinated plants are coated by covering to prevent it from wetting
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Q64) Wind pollinated and water pollinated flowers
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Q65) Pollenkitt is present in Show Answer

Q66) Attractants and rewards are required for Show Answer

Q67) Which one of the following plants shows a very close
relationship with a species of moth, where none of the two can complete its life cycle without the other?
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Q68) Continued self-pollination results in
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Q69) Device to discourage self-pollination or increase
cross-pollination is
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Q70) A dioecious flowering plant prevents both Show Answer

Q71) In which of the following, both autogamy and
geitonogamy are prevented?
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Q72) Generally pollen tube enters through
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Q73) The ability of the pistil to recognise the pollen
followed by its acceptance or rejection is the result of
a continuous dialogue between pollen grain and the
pistil.
Which of the following chemicals mainly takes part
in this interaction.
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Q74) The process of removal of anther from the flower bud
before it dehisces is called as Show Answer

Q75) For artificial hybridisation experiment in bisexual
flower, which of the sequence is correct?
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Q76) Double fertilisation is Show Answer

Q77) Double fertilisation is exhibited by Show Answer

Q78) I. Antipodal cell II. Egg cell
III. Synergid cell IV. Polar nuclei
V. Male gamete VI. Nucellar cell
VII. Central cell
Out of the seven names given above, find out haploid
cells. Show Answer

Q79) What is the fate of the male gametes discharged in the
synergid? Show Answer

Q80) How many number of nuclei are involved in
fertilisation?
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Q81) The total number of nuclei involved in triple fusion
is/are Show Answer

Q82) Syngamy and triple fusion is called …A… . The central cell becomes …B… develop into …C… and
zygote develops into …D… . A, B, C and D in the above statements are
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Q83) If stem has 2n = 10 number of chromosomes then
find out
A – number of chromosome in endosperm.
B – number of chromosome in egg cell.
C – number of chromosome in polar nuclei, respectively.
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Q84) If endosperm has 36 number of chromosomes then
find out the chromosome number of male and female
gamete.
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Q85) PEC (Primary Endosperm Cell) is formed
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Q86) In an angiosperm, male plant is diploid and female
plant is tetraploid then endosperm will be
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Q87) In angiosperm, pollen tube librates their male gametes
into the
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Q88) Out of the following choose the post-fertilisation
event(s).
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Q89) The morphological nature of the edible part of coconut is Show Answer

Q90) Coconut water from a tender coconut is
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Q91) Endosperm is consumed by developing embryo in the seed of
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Q92) A typical dicotyledonous embryo consist of an …A…
axis and …B… cotyledons.
The portion of embryonal axis above the level of
cotyledons is …C… which terminates with the …D…
or stem tip.
A, B, C and D in the above statement are
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Q93) The cylindrical portion below the cotyledons is
…A… that terminates to …B… and its tip is called
…C… . A, B and C here refers to
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Q94) The wheat grain has an embryo with one large,
shield-shaped cotyledon known as
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Q95) Number of seeds are equal to the
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Q96) Persistent nucellus in the seed is known as
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Q97) Which is most crucial for seed storage?
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Q98) True fruit is directly derived from
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Q99) False fruit is a fruit in which
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Q100) Thalamus contributes in the fruit formation in
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Q101) The world’s oldest viable seed, excavated from Arctic
Tundra is of
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Q102) Viability of date palm (Phoenix dactylifera) seed is
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Q103) Seed formation without fertilisation in flowering
plants involves the process of Show Answer

Q104) Type of cell division takes place in apomixis is
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Q105) Ovules contain many embryo in
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Q106) Occurrence of more than one embryo is called
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Q107) Vegetative/Asexual reproduction and apomixis are
common to each other in
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Q108) Nucellar polyembryony is reported in
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Q109) Apomictic embryos in Citrus arise from
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Q110) What is the correct sequence of development of
microsporogenesis?

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Q111) Strategies to prevent self-pollination are
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Q112) The portion of embryonal axis above the level of
cotyledons is
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Q113) Perisperm is
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Q114) Name the part of gynoecium that determines the
compatible nature of pollen grain.
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Q115) Which type of pollination occurs in self-incompatible
plant?
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Q116) In a typical complete, bisexual and hypogynous
flower the arrangement of floral whorls on the
thalamus from the outermost to the innermost is
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Q117) Among the terms listed below, those that are not
technically correct names for a floral whorl are
I. androecium II. carpel
III. corolla IV. sepal
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Q118) Embryo sac is to ovule as ...... is to an anther.
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Q119) A dicotyledonous plant bears flowers, but never
produces fruits and seeds. The most probable cause
for the above situation is
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Q120) During microsporogenesis, meiosis occurs in
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Q121) From among the sets of terms given below, identify
those that are associated with the gynoecium.
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Q122) Starting from the innermost part, the correct sequence
of parts in an ovule are
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Q123) From the statements given below choose the option
that are true for a typical female gametophyte.
I. It is 8-nucleate and 7-celled at maturity.
II. It is free-nuclear during the development.
III. It is situated inside the integument, but outside the
nucellus.
IV. It has an egg apparatus situated at the chalazal end.
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Q124) Autogamy can occur in a chasmogamous flower if
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Q125) Choose the correct statement from the following.
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Q126) From among the situations given below, choose
the one that prevents both autogamy and geitonogamy.
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Q127) In an embryo sac, the cells that degenerate after
fertilisation are
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Q128) While planning for an artificial hybridisation
programme involving dioecious plants, which of the
following steps would not be relevant?
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Q129) In the embryos of a typical dicot and a grass, true
homologous structures are
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Q130) The phenomenon observed in some plants where in
parts of the sexual apparatus is used for forming
embryos without fertilisation is called
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Q131) In a flower, if the megaspore mother cell forms
megaspores without undergoing meiosis and if one of
the megaspores develops into an embryo sac, its
nuclei would be
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Q132) The phenomenon wherein, the ovary develops into a
fruit without fertilisation is called
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Q133) In a fertilised embryo sac, the haploid, diploid and
triploid structures are
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Q134) The outermost and innermost wall layers of
microsporangium in an anther are respectively.
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Q135) A particular species of plant produces light,
non-sticky pollen in large numbers and its stigmas are
long and feathery. These modifications facilitate
pollination by
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