What would happen if the enzyme that makes DNA added a nucleotide to the middle of a coding region of a gene?

Question

Quizplus · Accepted Answer

Adding a nucleotide to the middle of a coding region would change the reading frame of the DNA, resulting in a shift in the codons and potentially changing the amino acid sequence of the protein. This is known as a frameshift mutation, which can have significant effects on protein function. Option B is incorrect because adding a nucleotide to the middle of a coding region can have consequences, and it is not always true that it wouldn't matter. Option C is incorrect because even a single nucleotide change can have an effect on protein function. Option D is incorrect because adding a nucleotide in the middle of a coding region would not necessarily make the mRNA or protein longer.

What Would Happen If the Enzyme That Makes DNA Added