This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
[{'content': 'Albinism is due to deficiency of the following enzyme? \nSelect and explain. \nA. Phenylalanine hydroxylase, B. Homogentisic acid oxidase, C. Tyrosinase, D. Decarboxylase', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The most common cause of albinism is a defect in tyrosinase, the enzyme most responsible for the synthesis of melanin. Albinism is an inborn error due to lack of synthesis of melanin. It is an autosomal recessive disorder with a frequency of 1 in 20,000. Ref: Textbook of Biochemistry and Human Biology by G. P. Talwar, 3rd Ed, Page 452', 'role': 'assistant'}]