Assertion :Muton has fewer nucleotides than a cistron. Reason: Benzer coined the term muton to the smallest unit of genetic material capable of mutational change.

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 B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
Muton is the smallest mutable region of the cistron. In other words, it is the smallest unit of the gene that can get mutated. The term was coined by Benzer. Thus, both assertion and reason are correct but the reason is not the correct explanation for the assertion.

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