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Which of the cells in the Polygonum type...

Which of the cells in the Polygonum type of embryo sac which degenerate after fertilization

A

antiploidal

B

synergids

C

secondary nucleus

D

both 1 and 2

Text Solution

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The correct Answer is:
D
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TRUEMAN BIOLOGY-SEXUAL REPRODUCTION IN FLOWERING PLANTS-MULTIPLE CHOICE QUESTIONS
  1. The filiform apparatus is present in

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  2. The haploid cell which divides by mitosis to form embryosac is

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  3. Which of the cells in the Polygonum type of embryo sac which degenera...

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  4. The number of cells in the Polygonum type of embryo sac which degener...

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  5. In 82% of angiosperm families, ovule is

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  6. Which of the following statements is/are correct ? (i) Endothecium ...

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

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

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

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  10. Increased asthmatic attacks in certain seasons are related to

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  11. Pollination occurs when a pollen grain

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  12. Anemophily is pollination through

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  13. Emasculation is

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  14. When anthers and stigma mature at the same time it is called

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  15. Self pollination (autogamy) is obligatory in closed bisexual flowers ...

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  16. Wind pollinated plants differ from insects pollinated plants in havin...

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  17. The process whereby a perfect flower is pollinated by its pollen is ...

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  18. The term used when anthers and stigmas of intersexual or perfect

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  19. Maturation of gynoecium before anthers of the same flower of

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  20. Cross pollination in crop plant is known as

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