If the DNA codons are ATG ATG ATG and a cytosine base is inserted at the beginning, then j which of the following will result?

Question

If the DNA codons are ATG ATG ATG and a cytosine base is inserted at the beginning, then j which of the following will result? (A) CAT GAT GATG (B) a non-sense mutation (C) C ATG ATG ATG (D) CATGATGATG

Tardigrade Admin · Accepted Answer

Nonsense mutation is a mutation which interconverts a nonsense to or from a sense-coding triplet, resulting in an abnormally foreshortened or elongated polypeptide chain. But in this example cytosine is added at the beginning so CAT GAT GATG will result.

Q. If the DNA codons are ATG ATG ATG and a cytosine base is inserted at the beginning, then j which of the following will result?

CAT GAT GATG

a non-sense mutation

C ATG ATG ATG

CATGATGATG

Nonsense mutation is a mutation which interconverts a nonsense to or from a sense-coding triplet, resulting in an abnormally foreshortened or elongated polypeptide chain. But in this example cytosine is added at the beginning so CAT GAT GATG will result.