Which of the following has proved helpful in preserving pollen as fossils?

Oil content

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Cellulosic intine

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Pollenkitt

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Sporopollenin

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Solution

The correct option is D Sporopollenin
Pollen grains are well preserved as fossils because of the presence of sporopollenin. It is a major component of the tough outer (exine) walls of pollen grains. It can withstand high temperatures and strong acids and alkali. No enzyme that degrades sporopollenin is so far known.

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