The Most Commonly Occurring Mutation in People with Cystic Fibrosis

Multiple Choice

The most commonly occurring mutation in people with cystic fibrosis is a deletion of a single codon. What is the most likely result of this mutation in the protein product?

A) a base-pair substitution
B) a nucleotide mismatch
C) a frameshift mutation
D) a polypeptide missing an amino acid
E) a nonsense mutation