An individual would develop cystic fibrosis if he carries ____ mutated CFTR gene(s).
A) 1
B) 2
C) 3
D) 4
E) 5

Question

Quizplus · Accepted Answer

Cystic fibrosis is an autosomal recessive disorder, which means an individual must inherit two mutated copies of the CFTR gene, one from each parent, to develop the disease. Therefore, an individual would develop cystic fibrosis if he carries 2 mutated CFTR genes (one from each parent).

An Individual Would Develop Cystic Fibrosis If He Carries ____