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Question

Which out of the following statements is incorrect?

A
Genetic code is ambiguous.
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B
Genetic code is degenerate.
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C
Genetic code is universal.
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D
Genetic code is non-overlapping.
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Solution

The correct option is A Genetic code is ambiguous.
Since there are 64 triplet codons and only 20 amino acids, genetic code is non-ambiguous. Non-ambiguous code means that there is no ambiguity about a particular code. One codon specifies only one amino acid and not any other except GUG which normally codes for valine but in certain conditions it also codes for N-formyl methionine as initiation codon.

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