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: Unknown
[{'content': 'Which is true hermaphroditism? \nSelect and explain. \nA. 45 X0, B. 45X0/46, C. 46XX/46XY, D. 47XY/47XX', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ref. The Short Textbook of Pediatrics. Pg 749\n\xa0\nHermaphroditism\nTrue’ hermaphroditism is a genetic condition in which affected individuals have both mature ovarian and testicular tissue. The entity is due to chromosomal and genetic cause .\nBoth the testis and the ovarian tissue are present in an individual and in different combinations .\n\nOvotestis on each side (commonest)\nTestis on one side ,ovary on other\xa0 .\nTestis or ovary on one side and ovotestis on the other .\nIt is probable that fertilisation by a sperm carrying one X chromosome , which contains some male determinant material from Y gives rise to this condition .\nThe common presentation is ambiguity of external genitalia .\nThe internal structure depends on the degree of differentiation of associated gonad on that side .\n75% develop gynecomastia and nearly 50% menstruate\n\nINVESTIGATIONS :\n\nSex chromatin is usually positive\nKaryotype is usually 46 XX(70%) ,rest are 46 XY and rarely mosaic XX/XY\nConfirmation is done by gonadal biopsy', 'role': 'assistant'}]