Question

If a DNA insertion of the base cytosine (C) occurred at the point indicated by the arrow, what would be the most likely effect? Note: A codon chart is provided for you.

a) Silent mutation
b) Missense mutation
c) Nonsense mutation
d) Frame-shift mutation

Answer 1

The most likely effect of a DNA insertion of the base cytosine (C) would be a frameshift mutation, leading to a potential change in codon sequence and non-functional protein production.

Step-by-step explanation:

In this case, the insertion of the base cytosine (C) at the indicated point would result in a frameshift mutation.

A frameshift mutation is a type of point mutation where the insertion or deletion of nucleotides shifts the reading frame of the DNA sequence.

In this scenario, the insertion of cytosine (C) would cause a shift in the reading frame, changing the sequence of codons and potentially leading to the production of a non-functional protein.