What term describes a transplantation of tissue between different species?

What term describes a transplantation of tissue between different species?

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

Answer: (D)

Transplantation of tissue between different species is called a xenograft. The “xeno-” part means foreign or from another species, so a graft from, say, a pig or a monkey used in a human recipient is xenograft. This is different from autografts (tissue moved within the same person), allografts (between individuals of the same species), and isografts (between genetically identical individuals, like identical twins). Xenografts face strong immune rejection because the tissues are recognized as foreign across species barriers, making them especially challenging to keep compatible without specialized approaches.

Transplantation of tissue between different species is called a xenograft. The “xeno-” part means foreign or from another species, so a graft from, say, a pig or a monkey used in a human recipient is xenograft. This is different from autografts (tissue moved within the same person), allografts (between individuals of the same species), and isografts (between genetically identical individuals, like identical twins). Xenografts face strong immune rejection because the tissues are recognized as foreign across species barriers, making them especially challenging to keep compatible without specialized approaches.