Children with PKU cannot metabolize an amino acid called phenylalanine. As a result, the substance builds up in their bodies and
A) causes them to be overweight.
B) causes night blindness.
C) causes hemophilia.
D) impairs central nervous system functioning.

Question

Quizplus · Accepted Answer

Phenylketonuria (PKU) is a genetic disorder that results in a deficiency in the enzyme needed to process phenylalanine, an amino acid. When phenylalanine accumulates in the body, it can lead to brain damage and impair central nervous system functioning, not the other conditions listed.

Children with PKU Cannot Metabolize an Amino Acid Called Phenylalanine