This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Amino Acid Metabolism, Subject name: Biochemistry
[{'content': 'Reaction occuring in conversion of norepinephrine to epinephrine- \nSelect and explain. \nA. Hydroxylation, B. Oxidation, C. Glucuronidation, D. Methylation', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., MethylationDopaTyrosine hydroxylase--------- Tyrosinase ..-------- DopaTyrosine|Dopa decarboxylase| | TyrosinaseDopamine Throxine (T4)Dopaquinone|b-oxidaseTriiodothyronine|(b-bydroxylase) NorepinephrineMelanin|N -methyl transferase (N-methylation)Epinephrine", 'role': 'assistant'}]