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Tamil Nadu Board of Secondary EducationHSC Science Class 12

Assertion: Sporopollenin preserves pollen in fossil deposits. Reason: Sporopollenin is resistant to physical and biological decomposition. - Botany

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Question

Assertion: Sporopollenin preserves pollen in fossil deposits.

Reason: Sporopollenin is resistant to physical and biological decomposition.

Options

  • assertion is true; reason is false

  • assertion is false; reason is true.

  • Both Assertion and reason are not true.

  • Both Assertion and reason are true.

MCQ
Assertion and Reasoning
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Solution

Both Assertion and Reason are true.

Explanation:

Assertion: Sporopollenin preserves pollen in fossil deposits. True, because sporopollenin forms the tough outer wall (exine) of pollen grains, which helps them survive for millions of years in fossil records.

Reason: Sporopollenin is resistant to physical and biological decomposition, True, as it is one of the most chemically inert organic materials known, making pollen highly durable.

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