The most common type of mutation that causes cystic fibrosis is a(n) ____.
A) deletion
B) insertion
C) base-pair substitution
D) gene duplication
E) transformation

Question

Quizplus · Accepted Answer

The most common type of mutation that causes cystic fibrosis is a deletion, specifically the deletion of three nucleotides in the CFTR gene, which results in the loss of the amino acid phenylalanine at position 508 in the CFTR protein.

The Most Common Type of Mutation That Causes Cystic Fibrosis