Before scientists fully understood the cause of PKU, infants with the disorder often developed
A) mental impairment.
B) colorblindness.
C) somatosensory hallucinations.
D) early-onset schizophrenia.

Question

Quizplus · Accepted Answer

PKU is caused by the inability to break down an amino acid called phenylalanine, which then builds up in the blood and leads to brain damage and mental impairment if not treated early. The other options listed are not typically associated with PKU.

Before Scientists Fully Understood the Cause of PKU, Infants with the Disorder