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: Surgery
[{'content': 'True of autosomal dominant polycystic kidney disease I and II respectiely -The most likely site of ectopic opening would be - \nSelect and explain. \nA. Chromosomes 16 and 5, B. 16 and 4, C. 11 and 5, D. 11 and 4', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Three forms of ADPKD have been identified.\n\nADPKD-1\n\naccounts for 85% of cases\nits gene is found on chromosome 16p\n\nADPKD-2\n\nits gene has been mapped to chromosome 4q\nit appears to have a later age of onset of symptoms and renal failure than ADPKD-1\n\nADPKD-3\n\nit has not been mapped to a gene uptill now.', 'role': 'assistant'}]