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In a fertilised embryo sac, the haploid,...

In a fertilised embryo sac, the haploid, diploid, and triploid sturcture are
(A) Synergid, zygote and primary endosperm nucleus
(B) Synergid, antipodal and polar nuclei
(C) Antipodal, synergid and primary endosperm nucleus
(D) Synergid, polar nuclei and zygote

A

Synergid, zygote and primary endosperm nucleus

B

Synergid, antipodal and polar nuclei

C

Antipodal, synergid and primary endosperm nucleus

D

Synergid, polar nuclei and zygote

Text Solution

Verified by Experts

The correct Answer is:
A
(i) Synergid cells- Haploid
(ii) Polar nucleus cells- Haploid
(iii) Antipodal cells- Haploid
Since when these three cells (synergid cells, polar nucleus and antipodal cells) became functional megaspore by mitosis, they are haploi (D)
(iv) Zygote- Diploid Egg cell forms diploid zygote by male gamete through fertilization.
(v) Primary endosperm nucleous is a central cell having two polar nuclei. It gets converted into Triploid endosperm nucleus by male gamete through fertilization
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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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