Assertion :Non-sense codon are responsible for termination of peptide chain. Reason: Non-sense codons are not recognised by tRNA.

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
tRNA have the ability to match a codon with its appropriate anti codon to attach the correct amino acid sequence. It also recognizes a specific codon in mRNA to promote the addition of attached amino acid to a growing peptide chain. Non sense codons also called stop codons are responsible for the termination of peptide chain because these are not recognised by tRNA. So, the correct answer is A.

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