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: Pediatrics
[{'content': 'Turner syndrome - karyotyping is? \nSelect and explain. \nA. 45, X0, B. 46 X0, C. 47 XXX, D. Trisomy 21', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., 45 XO 45X0 Lymphadema of dorsum of hand & fat Loose skin fold at nape of neck Sho stature Sho Neck (with webbing of neck) Anomalies ear Broad shield like chest with widely spaced small nipple Renal anomalies (Horse-shoe, souble or cleft renal pelvis) Coa of aoa", 'role': 'assistant'}]