This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolism of Purines and Pyrimidines, Subject name: Biochemistry
[{'content': 'Uric acid is formed by - \nSelect and explain. \nA. Catabolism of proteins, B. Catabolism of ketones, C. Catabolism of purines, D. Catabolism fo pyrimidines', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Catabolism of purines o Humans catabolize purines (adenine and guanine) to uric acid.", 'role': 'assistant'}]