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In a flower, if the megaspore mother cel...

In a flower, if the megaspore mother cell forms magaspores without undergoing meiosis and if one of the magaspores develops into an embryo sac, its nuclei would be

A

haploid

B

diploid

C

a few haploid and a few diploid

D

with varying ploidy

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The correct Answer is:
b
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Development of female gametophyte directly from megaspore mother cell without meiosis is called

Assertion : Megaspore mother cell undergoes meiotic division Reason : All four megaspores form female gametophyte.

Megasporogenesis is defined as the process of formation of megaspores from the megaspore mother cell (MMC). MMC is a diploid cell This process occurs inside the nucellus of the developing ovule. The fate of polar nuclei in the embryo sac is:

How many of the daughter cells obtained from a megaspore mother cell result in the formation of monosporic embryo sac?

The process in which a diploid egg cell is formed which later develops into an embryo without fertilisation is called:

Consider the following statements with respect to the flowering plants and choose the correct option (a) Pollen grains represent the male gametes (b) Functional megaspore develops innto embryo sac that represents the female gamete (c) Transfer of pollen grains from anther to stigma of different plant is known as xenogamy (d) Transfer of pollen grains from anther to stigma of another flower of the same plant is known as geitonogamy

TRUEMAN BIOLOGY-NCERT Exemplar Questions +2 (SEXUAL REPRODUCTION IN FLOWERING PLANTS )-MCQs
  1. Among the terms listed below, those that are not technically correct n...

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  2. Embryo sac is to ovule asis to an anther.

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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 innnermost wall layers of microsporangium in an anth...

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  6. During microsporogenesis, meiosis occurs in

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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

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  11. Choose the correct statement from the following.

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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 structur...

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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 articifical hybridisation programmme involving d...

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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 wherein parts of the sexual ap...

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

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

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