This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nucleotides, Subject name: Biochemistry
[{'content': 'Uric acid is conveed to allantoin in: \nSelect and explain. \nA. Catabolism of pyrimidines, B. Catabolism of purines, C. Synthesis of pyrimidines, D. Synthesis of purines', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Uric acid is the final excretory product of purine metabolism in humans. antioxidant by getting itself conveed (non enzymatically) to allantoin', 'role': 'assistant'}]