Which of the following types of mutations could result in a frameshift mutation?

Question

Quizplus · Accepted Answer

Frameshift mutations occur when the number of nucleotides added or deleted is not a multiple of three, which shifts the reading frame of the codons. Therefore, either an insertion or deletion of a base, which changes the number of nucleotides by one or two, can result in a frameshift mutation. The other options (A, B, C, and D) involve changes in only one or a multiple of three bases, which do not affect the reading frame and do not result in a frameshift mutation.

Which of the Following Types of Mutations Could Result in a Frameshift