This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Genetics And Genetic Disorders, Subject name: Pediatrics
[{'content': 'Abnormality involving which chromosome is seen in Hunter disease? \nSelect and explain. \nA. X chromosome, B. Y chromosome, C. Chromosome 21, D. Chromosome 22', 'role': 'user'}, {'content': 'Answer: A \nExplanation: a. X chromosome(Ref: Ghai 9/e p 640 9/e p 640)All types of mucopolysaccharidoses have autosomal recessive inheritance except Hunter disease, which is X linked recessive.', 'role': 'assistant'}]