This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Inborn Errors of Metabolism, Subject name: Pediatrics
[{'content': 'Lesch Nyhan - \nSelect and explain. \nA. X-link recessive, B. AD, C. AR, D. X-link dominant', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., X-link recessive [Ref: Nelson 18th/e Chapter 89)Lasch nyhan disease (LND)o X-link recessive disordero Defect in purine metabolismo Deficiency of HPRT enzymeo Manifest as hyperuricemia, intellectual disability, dystonic movement disorder like chorea-athetosis, spasticity, dysarthric speech.", 'role': 'assistant'}]