This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Amino Acid Metabolic Disorder, Subject name: Biochemistry
[{'content': 'Enzyme deficient in alkaptonuria - \nSelect and explain. \nA. Phenylalanine hydroxylase, B. Homogentisate oxidase, C. Tyrosinase, D. None', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Homogentisate oxidaseo Has been explained in previous sessions", 'role': 'assistant'}]