This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General obstetrics, Subject name: Gynaecology & Obstetrics
Which of the following is not same in monozygotic twins 
Select and explain. 
A. Sex, B. Finger prints, C. Blood group, D. Histocompatibilty
B: Finger prints
Answer: B: Finger prints 
Explanation: Monozygotic twin features: Same sex Same genetic features Acceptance of reciprocal skin graft Similar physical and behavioral features . Ref : Dutta Obs 9e pg 190.