Question

missense, nonsense, and silent mutations are examples of which type of mutation?
substitution
insertion
deletion
replication

Explanation:

Missense, nonsense, and silent mutations occur when a single - nucleotide is changed, which is a substitution mutation. Insertion adds nucleotides, deletion removes them, and replication is the process of DNA copying, not a type of mutation like these.

Answer:

A. substitution