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Pollen grain has a prominent two layered...

Pollen grain has a prominent two layered wall. The inner wall

A

Is made up of cellulose and pectin

B

Is thin and continuous

C

Is made up of Sporopollenin

D

Both (a) and (b)

Text Solution

Verified by Experts

The correct Answer is:
D
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PHYSICS WALLAH-SEXUAL REPRODUCTION IN FLOWERING PLANTS-NEET PAST 10 YEARS QUESTIONS
  1. Pollen grain has a prominent two layered wall. The inner wall

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  2. The plant part which consist of two generations one within the other: ...

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  3. In water hyacinth and water lily, pollination takes place by:

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  4. The body of the ovule is fused within the funicle at:

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  5. Which of the following is incorrect for wind-pollinated plants?

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  6. In some plants thalamus contributes to fruit formation Such fruits are...

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  7. Which one of the following statements regarding post-fertilization de...

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  8. Persistent nucellus in the seed is known as

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  9. What is the fate of the male gametes discharged in the synergid ?

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  10. Which of the following has proved helpful in preserving pollen of foss...

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  11. Pollen grains can be stored for several years in liquid nitrogen hav...

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  12. Double fertilisation is

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  13. Functional megaspore in an angiosperm develops into

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  14. A dioecious flowering plant prevents both

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  15. Fowers which have single ovule in the ovary and are packed into inflor...

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  16. Attractants and reward are required for

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  17. The hollow foliar structure in a wheat embryo that encloses the shoot ...

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  18. Choose the correct sequence representing the ploidy of Nucellus, Megas...

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  19. Continued self-pollination results in:

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  20. Pollen grains can be stored for years in liquid nitrogen, maintained a...

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  21. The ovule of an angiosperm is technically equivalent to

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