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From among the situations given below, c...

From among the situations given below, choose the one that prevents both autogamy and geitonogamy
(A) Monoecious plant bearing unisexual flowers
(B) Dioecious plant bearing only male or female flowers
(C) Monoecious plant with bisexual flowers
(D) Dioecious plant with bisexual flowers

A

Monoecious plant bearing unisexual flowers

B

Dioecious plant bearing only male or female flowers

C

Monoecious plant with bisexual flowers

D

Dioecious plant with bisexual flowers

Text Solution

Verified by Experts

The correct Answer is:
B
Autogamy is a type of self pollination in which pollen grain from the anther of one flower transfer to stigma of the same flower while in Geitonogamy pollen grain of the flower transfers to other flower of the plant. In this condition dioecious plant possess male and female flowers. Geitonogamy, in ecological point of view cross pollination is equal to self pollination because all flowers of the plant are genetically equal
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KUMAR PRAKASHAN-SEXUAL REPRODUCTION IN FLOWERING PLANTS-Section -E (Solution of NCERT Exemplar)(Multiple Choice Questions)
  1. Among the terms listed below, those that of are not technically correc...

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  2. Embryo sac is to ovule as …..is to an anther (A) stamen (B) Filamen...

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  3. In a typical complete, bisexual and hypogynous flower, the arrangement...

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  4. A dicotyledonous plant bears flowers but never produces fruits and see...

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  5. The outermost and innermost wall layers of microsporangium in an anthe...

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  6. During microsporogenesis, meiosis occurs in (A) Endothecium (B) Mic...

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  7. From among the sets of terms given below, identify those that are asso...

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  8. Starting from the innermost part, the correct sequence of parts in an ...

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  9. From the statements given below choose the option that are true for a ...

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  10. Autogamy can occur in a chasmogamous flower if (A) Pollen matures be...

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  11. Choose the correct statement from the following (A) Cleistogamous flo...

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  12. A particular species of plant produces light, non-sticky pollen in lar...

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  13. From among the situations given below, choose the one that prevents bo...

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  14. In a fertilised embryo sac, the haploid, diploid, and triploid sturctu...

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  15. In an embryo sac, the cells that degenerate after fertilisation are (...

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  16. While planning for an artificial hybridization programme involving dio...

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  17. In the embryos of a typical dicot and a grass, true homologous structu...

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  18. The phenomenon observed in some plants where in parts of the sexual ap...

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  19. In a flower, if the megaspore mother cell forms megaspores without und...

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  20. The phenomenon wherein, the ovary develops into a fruit without fertil...

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