This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
Gout is a disorder of 
Select and explain. 
A. Purine metabolism, B. Pyrimidine metabolism, C. Oxalate metabolism, D. Protein metabolism
A: Purine metabolism
Answer: A: Purine metabolism 
Explanation: Disorders of purine metabolism :

Gout, Lesch-Nyhan syndrome, adenosine deaminase deficiency, purine nucleoside phosphorylase deficiency.

Disorders of pyrimidine metabolism :

Orotic aciduria, P-hydroxybutyric aciduria, uraciluria-thyminuria.