Children with which condition have an inherited inability to control a destructive chemical that builds up in their bodies and will cause severe intellectual disability, if left untreated?
A) phenylketonuria (PKU)
B) fragile X syndrome
C) Down syndrome
D) fetal alcohol syndrome (FAS)

Question

Quizplus · Accepted Answer

Phenylketonuria (PKU) is a genetic disorder in which the child lacks an enzyme needed to break down an amino acid called phenylalanine. This leads to the accumulation of phenylalanine and its byproducts in the body, which can cause severe intellectual disability and other health problems if left untreated. This condition can be managed with a strict low-phenylalanine diet.

Children with Which Condition Have an Inherited Inability to Control