Assertion (A) : Termination codons or stop codons are UAA, UAG and UGA.
Reason (R) : Stop codons represent termination of translation.

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Both (A) and (R) are true but (R) is not the correct explanation of (A)

Both (A) and (R) are true and (R) is the correct explanation of (A)

Both (A) and (R) are false

(A) is true but (R) is false

answer is B.

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Detailed Solution

Both assertion and reason are true. R is not the correct explanation of A.

Stop codons are also known as nonsense codons or termination codons. As they do not code for an amino acid, they do not invite any charged t-RNA, instead release factors come and occupy the A site, thus initiating termination.

If stop codons are not present, then protein synthesis will continue uninterrupted,which is not the case.

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