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: Social & Preventive Medicine
[{'content': 'Commonest among diseases with Mendelian inheritance is – \nSelect and explain. \nA. Autosomal dominant, B. Autosomal recessive, C. X–linked recessive, D. X–dominant', 'role': 'user'}, {'content': 'Answer: A \nExplanation: It is estimated that the combined incidence of mendelian inheritance (autosomal dominant, autosomal recessive, x-linked) in man is about 1% of all live born individuals.\nAs many as 793 autosornal dominant phenotypes, 629 autosomal recessive traits and 123 sex linked diseases have been catalogued to date.', 'role': 'assistant'}]