A person with one copy of a mutated CFTR gene will ____.

A) have sickle cell anemia
B) have cystic fibrosis
C) have muscular dystrophy
D) likely be healthy
E) survive but be in poor health

CFTR Gene

A gene that codes for a protein involved in the transport of chloride ions across cell membranes, mutations of which are known to cause cystic fibrosis.

Mutated

Refers to having undergone changes in the genetic material, leading to a variation from the original.