A type of intellectual disability that is inherited only if BOTH parents are carriers of the defective gene is:
A)Fetal alcohol syndrome
B)Fragile-X syndrome
C)Phenylketonuria (PKU)
D)Down syndrome

Question

Quizplus · Accepted Answer

Phenylketonuria (PKU) is an inherited disorder that occurs only if both parents carry the defective gene, as it follows an autosomal recessive inheritance pattern.

A Type of Intellectual Disability That Is Inherited Only If