Phenylketonuria (PKU) Is a Genetic Disorder in Which

Multiple Choice

Phenylketonuria (PKU) is a genetic disorder in which

A) the body produces too much of the amino acid phenylalanine.
B) the body cannot break down the amino acid phenylalanine.
C) a lack of phenylalanine, if not supplemented, causes intellectual disability.
D) a missing enzyme can be supplied by a protein-rich diet.