Which enzyme is responsible for the conversion of Phenylalanine to Tyrosine in the treatment of Phenylketonuria?

A Phenylalanine Hydroxylase ✓
B Tyrosinase
C Tryptophan Hydroxylase
D Homogentisate 1,2-Dioxygenase

Explanation

Phenylalanine Hydroxylase is the enzyme responsible for converting Phenylalanine to Tyrosine, and its deficiency leads to Phenylketonuria.

Source

Online Mendelian Inheritance in Man (OMIM)
Enzymes in Disease Biochemistry Amino Acid Metabolism Disorders Hard MEDICAL Confidence: high