Which graft type involves transplantation between genetically different individuals of the same species?

Which graft type involves transplantation between genetically different individuals of the same species?

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

Answer: (A)

Graft compatibility is determined by how closely the donor and recipient are genetically related. An allograft is tissue or an organ transplanted between different individuals of the same species. Because the donor and recipient are not genetically identical, the recipient’s immune system can recognize the graft as foreign and may reject it unless immunosuppressive therapy is used. This contrasts with an isograft (genetically identical individuals, such as identical twins), an autograft (tissue from the same person), and a xenograft (between different species). So, when the transfer is between different individuals of the same species, the graft type is an allograft.

Graft compatibility is determined by how closely the donor and recipient are genetically related. An allograft is tissue or an organ transplanted between different individuals of the same species. Because the donor and recipient are not genetically identical, the recipient’s immune system can recognize the graft as foreign and may reject it unless immunosuppressive therapy is used. This contrasts with an isograft (genetically identical individuals, such as identical twins), an autograft (tissue from the same person), and a xenograft (between different species). So, when the transfer is between different individuals of the same species, the graft type is an allograft.