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Fossil pollen grains help to explore...

Fossil pollen grains help to explore

A

coal

B

petroleum

C

fossil plants

D

All of these

Text Solution

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The correct Answer is:
C
NA
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The microscopic pollen grains of the past are obtained as fossils. Mention the characteristic of the pollen grains that makes it happen .

Identify the pair of wrong statements I. Intine of pollen grains is made up of sporopollenin, II.l Pollen grains are well preserved as fossils because of the presence of sporopollenin, III. Enzymes can degrade the organic material of the pollen grain exine, IV. Sporopollenin can withstand high temperature, strong acids and alkali

Exine of pollen grain

ARIHANT NEET-SEXUAL REPRODUCTION IN FLOWERING PLANTS -ASORTED QUESTIONS
  1. Suspensor formed during emryogeny of sagittaria is

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  2. Epiblast present in certain monocot embryo represents

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  3. Fossil pollen grains help to explore

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  4. What is the termused for schematic illustration of the pollen grain?

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  5. …………………… is an example for the bisporic embryo sa.

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  6. Pollen tube is covered by a membrane made of

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  7. The micropylar part of the embryo sac protrudes out of ovule in

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  8. The embryo sac becomes haustrial and reaches the base of the stigma in

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  9. In Cortaderia jubaa, a haustorium arises from

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  10. The Oenothera type embryo sac lacks

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  11. Which condition is more advanced

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  12. A primitive massive nucellus occurs in some ovules. The condition is c...

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  13. Of the two cells of zygote, the cell near to micropyle is termed as

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  14. The first division of zygote is oblique in

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  15. Milky water of green coconut is liquid

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  16. The term xenia denotes the effect of pollen on the

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  17. Both micropylar and chalazal endosperm haustoria are formed in

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  18. An endosperm having irregular boundaries is termed as

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  19. Suspensor formation in Sagittaria occurs at………………… celled stage.

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  20. A chalazal endosperm haustorium with finger like appendages occurs in

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