What is the term for tissue transplanted to an individual of the same species but different genotype?

The correct term for tissue transplanted to an individual of the same species but different genotype is an allograft. This type of graft involves the transfer of organs or tissues between genetically different members of the same species. Allografts are commonly used in various medical procedures, such as organ transplants (e.g., kidney, liver) and are essential in situations where the recipient's own tissue cannot be used or has been damaged.

In contrast, other graft types like the autograft involve tissue taken from the same individual, thus eliminating the risk of rejection and making it a more compatible option. Heterografts, also known as xenografts, are derived from different species altogether, which presents significant immunological challenges. Understanding these terms is crucial when studying transplant immunology and the procedures involved in organ and tissue transplantation.