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
End product of purine metabolism is: 
Select and explain. 
A. Creatinine, B. Uric acid, C. Xanthine, D. Phosphates
B: Uric acid
Answer: B: Uric acid 
Explanation: Ans. B. Uric acidUric acid is the end product of purine metabolism. "GOUT" is a metabolic disease associated with over production of uric acid.