Question

Which of the following grafts is transplanted between two genetically different individuals of the same species?

• A. Autograft
• B. Xenograft
• C. Allograft
• D. Syngraft

Answer 1

The Correct Option is C

A graft refers to the transplantation of tissues or organs. The classification of grafts depends on the genetic relationship between the donor and recipient. 

Step 1: Understanding the Types of Grafts 
- Autograft: Tissue transplanted from one part of the body to another in the same individual (e.g., skin grafts). 
- Xenograft: Tissue transplanted between different species (e.g., pig heart valves in humans). 
- Allograft: Tissue transplanted between two genetically different individuals of the same species (e.g., kidney transplant from one human to another). 
- Syngraft: Tissue transplanted between genetically identical individuals (e.g., identical twins). 

Step 2: Evaluating the Options - Option (A) - Incorrect: Autograft is a self-transplant, not involving different individuals. - Option (B) - Incorrect: Xenograft is a transplant between different species. - Option (C) - Correct: Allograft is a transplant between two genetically different individuals of the same species. - Option (D) - Incorrect: Syngraft occurs between genetically identical individuals, like twins. 

Step 3: Conclusion Since allograft is the correct term for transplants between genetically different individuals of the same species, the correct answer is option (C).