This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: NEET 2019, Subject name: Surgery
If mother is donating the kidney to her son, this is an example of:- 
Select and explain. 
A. Autograft, B. Allograft, C. Isograft, D. Xenograft
B: Allograft
Answer: B: Allograft 
Explanation: Types of grafts - Autograft: same person - Allograft/Homograft: from one person to another / same species - Isograft: Identical twine - Xenograft/Heterograft: Between different species - Ohotopic graft: Graft placed in normal anatomical site - Heterotrophic graft: Graft in site different from its anatomical location