Sexual Reproduction in Flowering Plants Objective Type Questions with Answers | Sexual Reproduction in Flowering Plants Quiz

1 Functional megaspore in an angiosperm develops into

A Endosperm

B Embryo

C Embryo-sac

D Ovule

View Answer

Answer:Embryo-sac

2 Rewards and attractants are required for

A Entomophily

B Cleistogamy

C Anemophily

D Hydrophily

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Answer: Entomophily

3 A dioecious flowering plant prevents

A Geitonogamy and xenogamy

B Autogamy and xenogamy

C Autogamy and geitonogamy

D Cleistogamy and xenogamy

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Answer:Autogamy and geitonogamy

4 Testa of a seed is produced from

A hilum

B ovary wall

C funicle

D outer integument of ovule

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Answer:outer integument of ovule

5 Endosperm is formed during the double fertilization by

A one polar nuclei and one male gamete

B two polar nuclei and one male gamete

C two polar nuclei and two male gamete

D ovum and male gamete

View Answer

Answer: two polar nuclei and one male gamete

6 One advantage of cleistogamy is

A it leads to the greater genetic diversity

B seed set is not dependent on pollinators

C seed dispersal is more efficient and widespread

D each visit of a pollinator result in transfer of hundreds of pollen grains

View Answer

Answer: seed set is not dependent on pollinators

7 Pollen grains are shed at which stage?

A Two celled

B Three celled

C Single celled

D Usually at two celled, but sometimes three celled

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Answer: Usually at two celled, but sometimes three celled

8 Filiform apparatus is characteristic of

A egg

B synergids

C antipodal cells

D anther wall

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Answer:synergids

9 An ovule which becomes curved so that the nucellus and embryo sac lie at right angles to the funicle is

A hemitropous

B anatropous

C orthrotropous

D campylotrophous

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Answer:hemitropous

10 The egg apparatus of angiosperm comprises

A an egg cell and two antipodals

B an egg cell and the central cell

C an egg cell and the two polar nuclei

D an egg cell and two synergids

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Answer: an egg cell and two synergids

11 Fusion of male gamete with polar nuclei of embryosac is known as

A Pollination

B Embrogeny

C Triple fusion

D Double fertilization

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Answer:Triple fusion

12 Study the following statements and select the correct one.
A. Tapetum nourishes the developing pollen grains
B. Hilum represents the junction between ovule and funicle
C. In aquatic plants such as water hyacinth and water lily, pollination occurs by water.
D. The primary endosperm nucleus is triploid.

A A and b are correct but C and D are incorrect

B A, B and D are correct but C is incorrect

C B, C and D are correct but A is incorrect

D A and D are correct but B and C are incorrect

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