A gene mutation that involves a change of one base in the DNA is called a ________ mutation
A)missense
B)frameshift
C)point
D)nonsense

Question

Quizplus · Accepted Answer

A point mutation is a type of gene mutation in which a single nucleotide base is changed, added or deleted from the DNA sequence of a gene. This change in the DNA sequence can result in different types of mutations, such as missense, nonsense or silent mutations depending on the effect on the resulting protein. A frameshift mutation, on the other hand, involves the insertion or deletion of one or more nucleotides that shift the reading frame of the genetic code, leading to a completely different protein sequence. Therefore, choice B) frameshift, D) nonsense and A) missense mutations are not the best choices for a gene mutation that involves a change of one base in the DNA.

A Gene Mutation That Involves a Change of One Base