This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
[{'content': 'The mutation in cystic fibrosis is on which chromosome ? \nSelect and explain. \nA. 7p, B. 7q, C. 5p, D. 5q', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., 7q Cystic fibrosis Cystic fibrosis is an inherited disease of the mucus and sweat glands. Cystic fibrosis follows on autosomal recessive transmission. There is a defect in ion transpo of epithelial cells that affects fluid secretion in i) Exocrine glands (pancreas) ii) Epithelial lining of respiratory, gastrointestinal and reproductive tract.", 'role': 'assistant'}]