Purine Metabolism and Disorders — MCQs

For the conversion of aspartate to asparagine, nitrogen comes from which source?

Mechanism of action of allopurinol is

Which of the following increases uric acid excretion?

A 5-year-old presents with intellectual disability, self-mutilation, and hyperuricemia. What enzyme defect is most likely?

A patient presents with hyperuricemia and gout. Which enzyme's overactivity is most likely associated?

Which molecule provides nitrogen-9 to the purine ring?

The patient shown here is suffering from deficiency of which enzyme?

Inosinic acid is biological precursor of ?

What is mechanism of action of colchicine in acute gout?

Which of the following organs does not primarily utilize the salvage pathway of purine nucleotide synthesis?