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Middle layers of the microsporangial wal...

Middle layers of the microsporangial wall

A

shrivel at maturity of anther

B

persist, but remain thin-walled

C

degenerate before maturity

D

persist and become thickened

Text Solution

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The correct Answer is:
C
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ARIHANT NEET-SEXUAL REPRODUCTION IN FLOWERING PLANTS -ASORTED QUESTIONS
  1. Tapetum is

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  2. In the anther, stomium occurs

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  3. Middle layers of the microsporangial wall

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  4. Quinchamelium chilense is peculiar in having haustorial appendages ari...

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  5. Raphe is

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  6. Tetrasporic embryo sac is one in which for

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  7. In a mautre angiospermic male gametophyte, the male gametes are prese...

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

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  9. At what stage embryo sac is ready for fertilisation?

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  10. The condition, under which Dophnia reproduces parthenogenetically is

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  11. A pollinium consists of

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  12. Autogamy can occur in a chasmogamous flower if

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

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

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  15. In a fertilised embryo sac, the haploid, diploid and triploid structur...

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  16. The male gametes of angiosperms are

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  17. After penetrating stigmtic and stylar tissue, the pollen tube usually ...

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  18. At which stage, one can distinguish between nuclear and cellular type ...

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  19. While planning for an articifical hybridisation programmme involving d...

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  20. There are at lest two families where the product of double fertilisati...

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