Assertion :Senescence is the time when age associated defects are manifested. Reason: Certain genes may be undergoing sequential switching on and off during ones life.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

In the living organisms, Senescence is the time when age-associated defects are manifested due to the switch on of certain genes periodically. So Assertion and reason are correct and Reason is the correct explanation for the assertion.
So, the correct option is ‘Both Assertion and Reason are correct and Reason is the correct explanation of Assertion’.

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