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An alteration in a nucleotide sequence that changes a triplet coding for an amino acid into a termination codon is ____________

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An alteration in a nucleotide sequence that changes a triplet coding for an amino acid into a termination codon is ____________

(a) Nonsense mutation

(b) Mutagenesis

(c) Mutation

(d) Mutagen

The question was posed to me during an interview.

My enquiry is from DNA Repair topic in division DNA, RNA and Protein Metabolism of Biochemistry

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Best answer
Correct choice is (a) Nonsense mutation

Easiest explanation: Nonsense mutation (point mutation) results in a premature stop codon.

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