Which graft type uses tissue transplanted from the same individual?

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

Answer: (D)

Tissue grafts are classified by where the donor tissue comes from. An autograft uses tissue moved within the same individual, so the immune system recognizes it as self and rejection is unlikely. This makes autografts a preferred option when tissue can be taken from one site and placed at another in the same animal. In contrast, other types involve donor tissue from different sources: an isograft comes from a genetically identical donor (often an identical twin), an allograft from a different individual of the same species, and a xenograft from a different species. Since the question specifies tissue from the same individual, autograft is the correct concept.