This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Urology, Subject name: Surgery
An isograft is one that is transferred 
Select and explain. 
A. In the same individual, B. Between monozygotic twins, C. From I belonging to blood group A and other to blood group B, D. From animal to human when the organ involved is identical
B: Between monozygotic twins
Answer: B: Between monozygotic twins 
Explanation: Graft: It is transfer of tissue from one area to other without its blood supply or nerve supply. Autograft: It is tissue transferred from one location to another on the same patient. Isograft: It is tissue transfer between two genetically identical individuals, i.e. between two identical twins. Allograft: It is tissue transfer between two genetically different members, e.g. kidney transplantation (Human to human) (Homograft). Xenograft: It is tissue transfer from a donor of one species to a recipient of another species (Heterograft).Reference : page 321 SRB's manual of surgery 5th edition