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

Question

Quizplus · Accepted Answer

When one base is changed to another at a single position in the DNA sequence of a gene, it is called a substitution mutation. This type of mutation may or may not have any effect on the protein that is produced from the gene, depending on whether the new codon codes for the same amino acid or a different amino acid.

When One Base Is Changed to Another at a Single