Phenylalanine metabolism products are all except: (A) Epinephrine, (B) Dopamine, (C) Melanin, (D) Melatonin
Answer is D. Phenylalanine is conveed into Tyrosine by the action of enzyme Phenylalanine hydroxylase. Tyrosine is conveed into Melanin, Catecholamines, Dopamine, and Thyroxine through various metabolic pathways.Ref: DM Vasudevan - Textbook of Biochemistry, 6th edition, page no: 233