To be affected with cystic fibrosis, a child must inherit
A) dominant genes from both parents.
B) a dominant gene from one parent.
C) a gene through the mother (X- linked inheritance).
D) recessive genes from both parents.
E) the gene for recessive retinitis pigmentosa.

Question

Quizplus · Accepted Answer

Cystic fibrosis is an autosomal recessive disorder, meaning a child must inherit two copies of the defective gene, one from each parent, to be affected.

To Be Affected with Cystic Fibrosis, a Child Must Inherit