This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immune system, Subject name: Medicine
Gout results due to defective function of the following enzyme- 
Select and explain. 
A. PRPP synthetase, B. Glucose 6 phosphatase, C. Purine nucleotide phosphorylase, D. Glucose 6 phosphate dehydrogenase
B: Glucose 6 phosphatase
Answer: B: Glucose 6 phosphatase 
Explanation: Glucose 6 phosphatase defiency is a glycogen storage disorder which results in increased production of uric acid. Ref Davidsons 23e p1013