Q.

The triplet codons UGA, UAG and UAA are termed as termination codons because they

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a

stop mRNA synthesis

b

 do not specify any amino acid 

c

do not allow ribosomes to bind with mRNA

d

prevent binding of tRNA anticodons with mRNA

answer is B.

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Detailed Solution

There are 64 codons out of which three codons namely ie. UAA, UAG and UGA do not specify any amino acid, and signal the end of the message. They are known as non-sense or terminator codons.

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