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: Pathology
[{'content': 'If a mother is donating her kidney to son, this is an example of which of the following? \nSelect and explain. \nA. Isograft, B. Allograft, C. Autograft, D. Xenograft', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Donor and recipient are of same species and different individual : Allograft Donor and recipient are of same individual : Autograft Graft between different individual but of similar genetic makeup as in identical twins : Isograft Graft between different species : Xenograft For any organ transplantation, the single most impoant gene which has to be match is HLA DR for successful transplantation.', 'role': 'assistant'}]