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
In Duchenne muscular dystrophy, the defect is in the gene producing the following protein: 
Select and explain. 
A. Dystrophin, B. Alpha-actinin, C. Nebulin, D. Desmin
A: Dystrophin
Answer: A: Dystrophin 
Explanation: Duchenne & Becker muscular dystrophy are X linked recessive disorders due to defect in Dystrophin gene on Chr X