This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Amino Acids Basics, Subject name: Biochemistry
[{'content': 'Which of the following is derived from tyrosine - \nSelect and explain. \nA. Melatonin, B. Serotonin, C. Melanin, D. Niacin', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Melanino Tyrosine is a precursor of many important compounds such as catecholamines (epinephrine, norepinephrine ), dopamine), thyroxine, triiodothryonine, melanin.o Dopamine b-hydroxylase is a 'copper ' containing monooxygenase that requires ascorbic acid and molecular oxygen.o It catalyzes the formation of norepinephrine.", 'role': 'assistant'}]