This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Disorders Of Muscles in Children, Subject name: Pediatrics
[{'content': 'In Duchenne muscular dystrophy, the defect is in the gene producing the following protein: \nSelect and explain. \nA. Dystrophin, B. Alpha-actinin, C. Nebulin, D. Desmin', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Duchenne & Becker muscular dystrophy are X linked recessive disorders due to defect in Dystrophin gene on Chr X', 'role': 'assistant'}]