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': 'End product of purine metabolism is: \nSelect and explain. \nA. Creatinine, B. Uric acid, C. Xanthine, D. Phosphates', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B. Uric acidUric acid is the end product of purine metabolism. "GOUT" is a metabolic disease associated with over production of uric acid.', 'role': 'assistant'}]