Test: Biochemistry

1.

Phenylketonuria is a genetic disorder resulting in a lack of phenylalanine hydroxylase activity. During the first step of phenylalanine metabolism, phenylalanine is hydroxylated into what amino acid?

Threonine

Tyrosine

Tryptophan

Alanine

Serine

1/1 questions

0%
Learning Tools by Varsity Tutors