When one base is changed to another at a single position in the DNA sequence of a gene, a(n)_____ mutation has occurred.
A)insertion
B)deletion
C)frameshift
D)substitution

Question

Quizplus · Accepted Answer

A substitution mutation, also known as a point mutation, is a type of mutation in which one nucleotide base is replaced with another in the DNA sequence. This can result in a change in the amino acid sequence of the protein encoded by the gene, potentially altering its function.

When One Base Is Changed to Another at a Single