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Uniseuality of floweres prevents...

Uniseuality of floweres prevents

A

autogamy and geitonogamy

B

autogamy but not geitonogamy

C

both geitonogamy and xenogamy

D

geitonogamy but not xenogamy

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The correct Answer is:
B
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Unisexuality of flowers prevents

(A) : Insect visit flowers to collect honey. (R): Attraction of floweres prevents the insects from damaging other parts of the plant.

Assertion : Insects visit flowers to gather honey Reason : Attraction of flower prevents the insect from damaging other part of the plant.

Sleep is prevented by:

AAKASH INSTITUTE-SEXUAL REPRODUCTION IN FLOWERING PLANTS -Assignment (SECTION C)
  1. Which one of the following pairs of plant structures has haploid numbe...

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  2. What does the filiform apparatus do at the entrance into or Function o...

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  3. Uniseuality of floweres prevents

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  4. Which one of the following is resistant action

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  5. Male gametes in angiosperms are formed by the division of

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  6. Which one of the following is surrounded by a callose wall

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  7. What would be the number of chromosomes in the cell of the aleurone la...

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  8. Long filamentous threads protruding at the end of a young cob of maize...

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  9. The arrangement of the nuclei in a normal embryo sac in the dicot plan...

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  10. In a cereal grain the single cotyledon of embryo is represented by

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  11. In a type of apomixis known as adventure embryony embryos develop dire...

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  12. Through which cell of the embryo sac does the pollen tube enter the em...

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  13. Which one of the following represents an ovule, where the embryo sac b...

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  14. Which one of the following statement is correct

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  15. Megaspores are produced from megaspore mother cells after

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  16. Animal vectors are required for pollination in

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  17. Which of the following statement is correct ?

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  18. Albuminous seeds store their reserve food mainly in

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  19. The embryo in sunflower has

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  20. Endosperm is consumed by the developing embryo in

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