This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Genetics of Common Disorders, Subject name: Pediatrics
Turner syndrome - kary oty ping is- 
Select and explain. 
A. 45, XO, B. 46XO, C. 47 XXX, D. Trisomy 21
A: 45, XO
Answer: A: 45, XO 
Explanation: Ans. is 'a' i.e., 45 XO o 45XOo Lymphadema of dorsum of hand & fato Loose skin fold at nape of necko Short statureo Short Neck (with webbing of neck)o Anomalies earo Broad shield like chest with widely spaced small nippleo Renal anomalies (Horse-shoe, souble or cleft renal pelvis)o Coart of aorta