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JRS TUTORIALS
Botany Practice Test Paper
Sexual Reproduction In Flowering Plants
Time: 2 Hr. M. Marks: 400
This paper contains 100 multiple choice questions. Each question has 4 choices (1), (2), (3) and
(4) for its answer, out of which ONLY ONE is correct. For each question you will be awarded
4 marks if you have darkened only one bubble corresponding to the right answer. In case you
have not answered a question you will be awarded 0 marks for that question. In all other cases
you will be awarded –1 mark.

1. The number of meiotic divisions required to produce 100 pollen grains in cyperus plant is
1. 25 2. 50 3. 75 4. 100
2. Most commonly anther is
1. Bilobed tetrasporangiate 2. Unilobed bisporangiate
3. Unilobed tetrasporangiate 4. Bilobed bisparangiate
3. (i) The proximal end of the filament is attached to the thalamus or the petal
(ii) The number and length of stamens are variable in flowers of different species.
(iii) The anther is a four-sided (tetragonal) structure consisting of four microsporangia
located at the corners, two in each lobe.
Codes :
1. (i) & (ii) correct 2. (i) & (iii) correct
3. (i), (ii) & (iii) correct 4. (ii) & (iii) correct
4. Select the incorrect statement w.r.t. tapetum
1. Provide nourishment to developing pollen grains
2. Tapetum posses dense cytoplasm and more then one nucleus
3. Glandular/secretory tapetum is common type
4. Tapetum produces pollen tube
5. Consider the following statements
(i) A group of loosely arranged hetrogenous cells occupies the centre of each
microsporangium called sporogenous tissue
(ii) cells of sporogenous tissue produce microspore tetrad meiotically
(iii) only some specific cells of sporogenous tissue give rise to microspore tetrad
(iv) Megaspores develop into pollen grains
Codes :
1. (ii) & (iii) correct only 2. (i) & (ii) correct only
3. (ii) correct only 4. (iii) correct only
6. Which of the following statement is incorrect for pollen grains
1. Pollen grains represent male gametophyte
2. Inside each sporangium only a limited number of pollen grains produced
3. Pollen consumption increase performance of athletes and race horses.
4. Pollen grains are generally spherical

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7. Consider the following statements regarding pollen grains

(i) Outer wall of pollen grain is called exine
(ii) Inner pollen wall is made up of sporopollenin
(iii) Intine of pollen grain bears germ pores
(iv) Sporopollen is carotenoid derived organic material
1. (i) & (ii) is correct 2. (ii) & (iii) is correct
3. (i) & (iv) is correct 4. (iii) & (iv) is correct
8. In how many percent of angiosperms pollen grains are present in two celled stage.
1. 40% 2. 60% 3. 100% 4. 75%
9. Pollen grains of which of the following species cause allergy.
1. Chenopodium 2. Parthenium
3. Amaranthus 4. All of these
10. (i) Generative cell is large and floats in the cytoplasm of vegetative cell
(ii) The bigger cell of pollen grain having abundant reserve food is also called tube cell
(iii) Generative cell is spindle shaped with dense cytoplasm and a nucleus
1. (i) & (ii) correct 2. (ii) & (iii) correct
3. (i) & (iii) correct 4. (i), (ii) & (iii) correct
11. In how many percent of angiosperms pollen grains are shed at 3-celled stage
1. 60% 2. 50% 3. 40% 4. 75%
12. Select the incorrect statement about sporopollenin.
1. One of the most resistant organic material
2. Withstand high temperatures, strong acids and alkali
3. Only very few enzymes can degrade sporopollenin
4. It has role in fossilization of pollen grains
13. Which of the following statements is incorrect
1. Study of pollen grains is called palynology
2. Many pollen products are available in market.
3. Pollen viability depends on prevailing temperature and humidity
4. In rice and wheat pollen grains have viability for about six months
14. Pollen grains can be stared for years in liquid nitrogen having temperature ________ and
process called_______.
1. –175oC, cryopreservation 2. –196oC, springification
3. –196oC, cryopreservation 4. –196oC, vernalisation
15. The viability period for pollens in pea and rice plants will be
1. Same for both 2. Different for both
3. Longer for rice and shorter for pea 4. Shorter for both
16. (i) Through germ pore pollen tube arises
(ii) Generative cell divide mitotically to produce pollen tube
(iii) The design on exine has taxonomic significance
(iv) Inner pollen wall is pecto cellulosic
1. (i) & (ii) correct only 2. (i) & (iv) correct only
3. (ii) incorrect only 4. All statements correct
17. Tapetum performs following functions except
1. Synthesis of compatibility proteins
2. Synthesis of hormones and enzymes
3. Secretion of sporopollenin
4. Provide nourishment to megaspores

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18. (i) Connective is sterile vascular tissue

(ii) Sporogenous tissue develops from archesporial cells
(iii) Fibrous thickening of -cellulose band present in endothecium
(iv) Middle layer and tapetum never degenerates
Codes :
1. (i) & (ii) correct only 2. All statements are correct
3. (i), (ii), (iii) correct only 4. (iii) & (iv) correct only
19. By which process tapetum increases its DNA content
1. Endomitosis 2. Polyteny
3. Restitution nucleus 4. All of these
20. (i) In monocots pollen grains are mostly tricolpate
(ii) Plant Aristolochia elegans represents 5 types of microspore tetrad arrangement
(iii) Pollen kitt is colored, sticky layer around pollen grains
1. (i) & (iii) correct 2. (i) & (ii) correct
3. (i), (ii) & (iii) correct 4. (ii) & (iii) correct
21. Consider the following statement regarding male gametophyte development in
angiosperms
(i) Occurs either inside anther or on stigma surface
(ii) 1 meiosis and 1 mitosis occurs to produce one mature pollen grain
(iii) 1 meiosis and 2 mitosis occurs to produce one mature male gametophyte
(iv) In 60% angiosperms male gametophyte development is in-situ only
1. (iii) & (iv) correct only 2. (ii) & (iv) correct only
3. (i) & (ii) correct only 4. (i), (ii) & (iii) correct only
22. Ovule is
1. Integumented, dehiscent megasporangium
2. Integumented, Indehiscent megasporangium
3. Unintegumented, indehiscent megasporangium
4. Integumented, indehiscent microsporangium
23. Tritegmic and ategmic ovule found in respectively
1. Gymnosperms and santalum 2. Litchi and gymnosperms
3. Litchi and santalum 4. Santalum and Litchi
24. (i) Nucellus and tapetum are functionally similar
(ii) Embryo sac represents famate gametophyte
(iii) Central cell is smallest cell of embryo sac
Codes :
1. (i) & (ii) correct 2. (i) & (iii) correct
3. (i), (ii) & (iii) correct 4. only (iii) correct
25. Select the incorrect option w.r.t. embryo sac.
1. Polygonum type of embryo sac is most common type
2. Most commonly embryo sac is 8-celled and 8-nucleated
3. Central cell contains 2 polar nuclei
4. Oenothera type of embryo sac is 4-celled and 4-nucleated
26. Select the incorrect match
Structure Function
1. Placenta – Attach ovule to ovary wall
2. Funicle – Attach ovule to placenta
3. Hilum – Ovule to funicle attachment point
4. Micropyle – Attach ovule to fruit wall
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27. Which of the following ovule is most primitive type

1. Orthotropous 2. Anatropous
3. Hemitropous 4. Amphitropous
28. Which of the following ovule is most common type and found in 82% of angiosperm
families
1. Circinotropous 2. Anatropous
3. Amphitropous 4. Campylotropous
29. Egg apparatus is
1. 2-celled structure 2. 3-celled structure
3. 4-celled structure 4. 7-celled structure
30. Special cellular thickening arising from wall of synergid at M–end is called
1. Egg apparatus 2. Antipodal cells
3. Filiform apparatus 4. Embryo sac
31. The number of meiotic divisions required to produce 400 pollen grains will be
1. 400 2. 100 3. 50 4. 35
32. (i) Cells of nucellus have abundant reserve food
(ii) In ovule MMC arise in chalazal region
(iii) Filiform apparatus guides pollen tube into synergid
(iv) In Papaver pistils are apocarpous
Codes :
1. (ii) & (iv) incorrect 2. (ii) & (iii) incorrect
3. (i) & (iii) incorrect 4. All statements incorrect
33. (i) In 40% angiosperms male gametophyte development is in-situ only
(ii) In 60% angiosperms male gametophyte development is both in-situ and ex-situ
(iii) 3-celled pollen grain is mature male gametophyte
(iv) Sporopollenin is absent at germ pore
Incorrect statement is/are.
1. (i) & (ii) only 2. (ii) & (iii) only
3. (ii) & (iv) only 4. None of these
34. What will be the number of pollen grains in a pea plant if total 12 flowers present and in
each microsporangium 5 pmc present.
1. 38,400 2. 19200 3. 3200 4. None of these
35. (i) Only one germ pore present in a pollen grain
(ii) Cyperus plant exhibit abnormal microsporogenesis
(iii) vegetative cell produce two male gametes mitotically
Codes :
1. (i) & (iii) correct 2. only (ii) correct
3. only (iii) correct 4. all statements incorrect
36. (i) Pollination bring together both the non-motile gametes
(ii) Amazing array of adaptations have evolved in flowering plants to achieve pollination
(iii) Geitonogamy brings genetic diversity
Codes :
1. (i) & (ii) correct 2. (ii) & (iii) correct
3. (i) & (iii) correct 4. only (ii) correct

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37. Consider the following statements

(i) Both cleistogamous and chasmogamous flowers can never be present on same plant
(ii) xenogamy brings genetic diversity
(iii) In cleistogamous flowers only autogamy occurs
1. only (i) incorrect 2. only (iii) incorrect
3. Both (i) & (iii) incorrect 4. All statements correct
38. All the statements are correct w.r.t. autogamous pollination, except
1. Occurs within the same flower
2. Synchrony in pollen release and stigma receptivity required
3. It assures seed-set even in the absence of pollinators
4. It brings genetic variations & evolution
39. In genetically self and functionally cross-pollination pollen grains come from
1. Anther to the stigma of same flower of same plant
2. Anther to the stigma of different flowers of same plant
3. Anther to the stigma of different flowers of different plant
4. None of these
40. (i) The chasmogamus flowers having exposed anthers and the stigma, chances of
autogamy is weak
(ii) Common pansy(viola) plant bears only cleistogamous flowers
(iii) Cleistogamous flowers are invariably auto-gamous
(iv) no floral reward is need to pay in cleistogamus flowers
1. (i) & (iv) correct only 2. (i), (ii) & (iii) correct only
3. (i), (iii) & (iv) correct only 4. all statements correct
41. Transfer of pollen grains from anther to stigma of different flowers of the same plant is
called
1. Xenogamy 2. Geitonogamy
3. Autogamy 4. Clistogamy
42. (i) In maize plant geitonogamy occurs
(ii) Maize plant is monoecious having unisexual flowers.
(iii) Emasculation is not required in maize plant
Correct statements are
1. (i) & (iii) 2. (ii) & (iii)
3. (i) & (ii) 4. (i), (ii) & (iii)
43. Consider the following statements about a biotic pollination
(i) Majority of plants use abiotic agents for pollination
(ii) Pollination by water is more common amongst a biotic pollinations
(iii) All the aquatic plants use water for pollination
(iv) Wind pollination is common in grasses.Incorrect statements are
1. (i) & (iv) only 2. (ii) & (iii) only
3. (iv) only 4. (i), (ii) & (iii) only
44. Consider the following statements regarding autogamy
(i) Continued selfing result in inbreeding depression
(ii) Many plants have developed many mechanisms to discowrage inbreeding
depression
(iii) Inbreeding depression results in the loss of many hybrid traits
(iv) Autogamy is evolutionary advantageous.Correct statements are
1. (i) & (ii) only 2. (i), (ii) & (iv) only
3. (i), (ii) & (iii) only 4. (ii) & (iii) only

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45. Which of the following option is incorrect about maize plant.

1. It is wind pollinated plant
2. Emasculation is not required during artificial hybridisation
3. Both autogamy and xenogamy is prevented in this plant
4. It is monoecious plant having bisexual flowers.
46. All the statements are correct except
1. Pollination by water is quite rare in angiosperms
2. Pollen grains carry non-motile gametes
3. Water hyacintu and water lily are water pollinated plants
4. Wind and water pollinated flowers do not produce nectar.
47. Among the animals, dominant biotic pollinating agents are
1. Bees 2. Birds 3. Ants 4. Flies
48. Consider the following statements regarding insect pollinated flowers.
(i) Large, colourful, fragrant and rich in nectar.
(ii) Small flowers are clustered into an inflorescence to become conspicuous
(iii) Pollen grains are light and non-sticky
(iv) Flowers need not to provide rewards
correct statements are
1. (i) & (ii) correct 2. (iii) & (iv) correct
3. (i), (ii) & (iv) correct 4. All statements are correct
49. Which of the following is/are floral rewards for the plants
1. Pollen 2. Nectaro
3. Safe place to lay eggs 4. All of these
50. Pollen grains smaller, light weight, non-sticky, stigma large and feathery are the
characteristics of
1. Anemophilus flowers 2. Zoophilus flowers
3. Hydrophilus flowers 4. Entomophilus flowers
51. Which of the following aquatic plant is/are pollinated by wind or insects
1. Lotus 2. Lily 3. Alisma 4. All of these
52. Primates like Lemurs are involved in pollination in plant
1. Ravenela 2. Salvia 3. Ficus 4. Amorphophallus
53. Which of the following is/are entomophilus plant
1. Ficus 2. Calotropis
3. Salvia 4. All of these
54. Safe place to lay eggs as a floral reward is given by
1. Salvia plant 2. Yucca plant
3. Amorphophallus plant 4. Both 2 and 3
55. Lever/turnpipe mechanism of pollination is found in
1. Salvia 2. Aristolochia 3. Ficus 4. Orchid
56. Trap door mechanism of pollination is found in
1. Salvia 2. Ficus 3. Aristolochia 4. Calotropis
57. (i) Wind pollination is quite common in grasses
(ii) Emasculation is essential if flower is unisexual
(iii) In artificial pollination desired pollen grains are used for pollination
(iv) Castor plant prevent autogamy but not geitonogamy
Correct statements are
1. (ii), (iii) and (iv) 2. (i), (ii) and (iii)
3. (i), (iii) and (iv) 4. All of these

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58. Consider the following statements regarding pollen-pistil interaction

(i) Pollination does not guarantee the transfer of compatible type of pollen grains
(ii) The pistil has ability to recognize the compatible and incompatible type of pollens
(iii) Continuous chemical dialogue occurs between pollen and pistil
(iv) Pollen-pistil interaction is a dynamic process
1. (ii), (iii) and (iv) 2. (i), (ii) and (iii)
3. (iii) and (iv) only 4. all the statements correct
59. In papaya, male and female flowers are present on different plants (Dioecious). This
condition prevents
1. Autogamy 2. Geitonogamy 3. Xenogamy 4. Both 1 and 2 correct
60. All the statements are correct regarding self pollination except.
1. Continuous selfing results in the loss of heterozygosity
2. Inbreeding depression occur which is genetically deleterious
3. It brings genetic diversity in progeny
4. Plant must be monoecious for self pollination to occur
61. All of the followings are contrivences for autogamy except
1. Monocliny 2. Homogamy 3. Heterostyly 4. Cleistogamy
62. Dicliny refers
1. Unisexuality 2. Bisexuality
3. Maturation of both sexes at same time
4. Maturation of both sexes at different time
63. The best contrivences for allogamy is
1. Heterostyly 2. Dicliny 3. Dichogamy 4. Herkogamy
64. Select the correct match
Outbreeding devices Example
(i) Protandry (a) Papaya
(ii) Unisexuality (Dioecy) (b) Primula
(iii) Heterostyly (c) Calotropis
(iv) Herkogamy (d) Sunflower
1. (i)-d, (ii)-a, (iii)-b, (iv)-c 2. (i)-c, (ii)-b, (iii)-d, (iv)-a
3. (i)-d, (ii)-a, (iii)-c, (iv)-b 4. (i)-a, (ii)-b, (iii)-c, (iv)-d
65. (i) In dichogamy pollen release and stigma receptivity are not synchronized.
(ii) Self-incompatibility is a genetic mechanism to promote autogamy
(iii) Pollen germination can not be studied in vitro
(iv) Papaya shows genetically self and functionally cross-pollination
incorrect statements are -
1. (i) and (ii) only 2. (i), (ii) and (iv) only
3. (ii), (iii) and (iv) only 4. (i), (ii), (iii) and (iv)
66. Select the correct sequence of steps involved in artificial hybridisation in pea plant
1. Emasculation, dusting, bagging, rebagging
2. Dusting, emasculation, bagging, rebagging
3. Emasculation, Bagging, dusting, rebagging
4. Emasculation, rebagging, bagging, dusting

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67. Entry of pollen tube inside ovule occurs through

1. Micropyle 2. Chalaza 3. Integument 4. All of these
68. (i) Stigma can be protected from contamination from unwanted pollen
artificially
(ii) Filiform apparatus guides the entry of pollen tube
(iii) Pollinating agents always bring about pollination after taking floral reward.
(iv) Amorphophallus plants have tallest flowers
1. (i), (ii) and (iv) correct 2. (ii), (iii) and (iv) correct
3. (i), (ii) and (iii) correct 4. (i), (ii), (iii) and (iv) correct
69. (i) Transmission tissue is the characteristics of solid type of style
(ii) Pollen tube growth is regulated by the nucleus of vegetative cell
(iii) Casuarina plant exhibit mesogamy
(iv) Pollination by water is limited to about 30 genera, mostly in monocotyledons
correct statements are
1. (i), (ii) and (iv) 2. (i) & (iv) only
3. (ii) and (iii) only 4. (i), (ii), (iii) and (iv)
70. Select the correct match about pollination
(i) Ophiophily (a) Pollination by ants
(ii) Chiropterophily (b) Pollination by snail
(iii) Malacophily (c) Pollination by Bats
(iv) Myrmecophily (d) Pollination by snakes
1. (i)-c, (ii)-d, (iii)-b, (iv)-a 2. (i)-d, (ii)-c, (iii)-b, (iv)-a
3. (i)-d, (ii)-b, (iii)-c, (iv)-a 4. (i)-a, (ii)-b, (iii)-c, (iv)-d
71. Double fertilization is the unique characteristics of
1. Bryophytes 2. Angiosperms
3. Pteridophytes 4. Gymnosperms
72. Total how many nuclei fuse in double fertilization
1. Four 2. Five 3. Two 4. Three
73. Consider the following statements regarding double fertilization
(i) PEC develops into triploid nutritive tissue
(ii) Double fertilization include syngamy and triple fusion.
(iii) Double fertilization occurs in all angiosperms
(iv) Syngamy precedes the triple fusion
incorrect statements are
1. (i) and (iii) 2. (iii) and (iv) 3. (ii) and (iv) 4. (iii) only
74. Select the incorrect transformation after fertilization
1. Zygote  Embryo
2. Central cell  PEC
3. PEC  Endosperm
4. Integument  Fruit wall
75. (i) Synergids and antipodal cells degenerate after fertilization
(ii) Free nuclear endosperm is most common type
(iii) The coconut water from tender coconut represents cellular endosperm
(iv) White kernel of coconut represents cellular endosperm
1. (i) & (iv) correct only 2. (i), (ii), (iii) correct
3. (i), (ii) & (iv) correct 4. All correct

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76. All statements are correct for endosperm, except.

1. In Trapa, Podostemon and Orchid endosperm is not formed
2. In Gymnosperms endosperm is pre-fertilisation structure
3. Free-nuclear endosperms later on become cellular due to wall formation
4. Haploid endosperm found in oenothera lamarckiana
77. Which of the following is not an endospermic seed.
1. Wheat 2. Rice 3. Pea 4. Castor
78. (i) Embryo develops at the micropylar end of the embryo sac
(ii) Embryogeny starts after endosperm development
(iii) The portion of embryonal axis above the level of cotyledons is hypocotyl
(iv) Crucifer type of embryogeny is most studied in monocots
1. (i) & (iv) incorrect 2. (i) & (ii) incorrect
3. (iii) & (iv) incorrect 4. (ii) & (iv) incorrect
79. Shoot apex and leaf primordial enclosed in a hollow foliar structure called
1. Coleorrhiza 2. Coleoptile
3. Epicotyl 4. Hypocotyl
80. (i) In grass family the cotyledon is called aleurone tissue
(ii) hypocotyl terminates at its lower end in the radicle and root tip
(iii) Banana is parthenocarpic fruit
(iv) Thalamus may also contributes in fruit formation.
correct statements are
1. (i), (iii) and (iv) 2. (ii), (iii) and (iv)
3. (i), (ii) and (iii) 4. All correct
81. Persistent nucellus is known as
1. Hypoplast 2. Epiblast 3. Perisperm 4. Tigellum
82. The remnants of second cotyledons in monocots is called
1. Epiblast 2. Perisperm 3. Tigellum 4. Aleurone layer
83. Perispermic seeds found in
1. Black papper 2. Beet 3. Pea 4. Both 1 and 2
84. Select the odd one out w.r.t false fruits
1. Apple 2. Strawberry 3. Cashew 4. Mango
85. (i) The entry of oxygen and water in seeds occur through micropyle of seeds
(ii) As the seeds mature, metabolic activity of embryos slow down
(iii) Pea seeds have residual endosperm
1. (i) & (ii) correct 2. (ii) & (iii) correct
3. (i) & (iii) correct 4. (i), (ii) & (iii) correct
86. Longest seed viability is found in
1. Lupine 2. Date palm 3. Sweet pea 4. Maize
87. The largest cell of embryo sac is
1. Antipodol cell 2. Central cell 3. Synergid 4. egg cell
88. The process of seeds formation without fortilisation is called
1. Apomixis 2. Syngamy
3. Double fertilization 4. Xenia

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89. Consider the following statements regarding apomixes and select incorrect one
1. A form of asexual reproduction that mimics sexual reproduction
2. In citrus and mango adventive embryong occurs
3. Polyembryony is common in citrus
4. One pollen grain always produces only single pollen tube
90. Seed dormancy is desirable because
1. Seeds can be stored for next season
2. Dormancy tides over unfavourable environmental conditions
3. Dormany help seeds to germinate easily
4. Both 1 and 2 are correct
91. Superiority of hybrid offsprings over homozygous parents is called
1. Heterosis 2. Hybrid vigour
3. Inbreeding depression 4. Both 1 and 2
92. Embryo development from diploid somatic tissues like nucellus is called
1. Apospory 2. Diplospory
3. Apogamy 4. Adventive embryony
93. In Datepalm the fruit size and maturity period depends on foreign pollen. It is called
1. Xenia 2. Metaxenia 3. Apomixis 4. Apogamy
94. One of the major advantage of apomixis lies in
1. To produce seedless fruits
2. To produce seeds without fertilization
3. To prevent segregation of characters in the hybrid thus maintaining hybrid vigour.
4. To produce viable seeds
95. Consider the following statements w.r.t. hybrid seeds
(i) Hybrid seeds are more desirable due to higher productivity
(ii) Cost of production of hybrid seeds is more than normal seeds.
(iii) Hybrid seeds if sown, the segregation of characters /fruit will occur in progeny
(iv) If hybrid seeds are made into apomicts, hybrid vigour will be maintained
Correct options are
1. (i), (ii) and (iii) only 2. (i) and (iv) only
3. (i), (ii) and (iv) only 4. (i), (ii), (iii) and (iv)
96. All are the albuminous seeds except
1. Maize 2. Barley 3. Groundnut 4. Castor
97. Which of the following tissue is involved in polyembryony
1. Nucellus 2. Integument 3. Embryo sac 4. All of these
98. Effect of foreign pollen on endosperm character is called
1. Xenia 2. Metaxenia
3. Apomixis 4. Parthenogenesis
99. Which of the following cell does not participate in double fertilization
1. Central cell 2. Synergid 3. Egg cell 4. Sperm
100. Select the odd one out w.r.t. ploidy level
1. Seed coat 2. Aleurone layer
3. Endosperm 4. PEC

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