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: Gynaecology & Obstetrics
[{'content': "Turner's Syndrome is associated with : \nSelect and explain. \nA. 45 chromosomes, B. Presence of barr bodies, C. Low FSH levels, D. All of the above", 'role': 'user'}, {'content': 'Answer: A \nExplanation: 45 chromosomes Turners syndrome has karyotype 45X0. (Option "a" is correct) No. of Barr Bodies= Total No of X Chromosomes -- 1 No. of Barr Bodies in Turners = 1 -- 1 = 0 (Option "b- ruled out) In Turner\'s syndrome ovaries are replaced by Streak Gonads --> Decreased Estrogen levels -- Decrease in negative inhibition over FSH and therefore FSH levels raised. (Option "c- ruled out)', 'role': 'assistant'}]