This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Psychiatry
[{'content': 'The percentage of Schizophrenia in First degree relatives is \nSelect and explain. \nA. 1.25%, B. 2.40%, C. 6.40%, D. 4.35%', 'role': 'user'}, {'content': 'Answer: C \nExplanation: (C) 6.4% # Genetic factors are involved in at least a subset of individuals who develop schizophrenia. Schizophrenia is observe d in 6.6% of all first-degree relatives of an affected proband. If both parents are affected, the risk for offspring is 40%. The concordance rate for monozygotic twins is 50%, compared to 10% for dizygotic twins.', 'role': 'assistant'}]