Antigenically distinct individuals or tissues from the same genetic species. In transplantation biology, denoting individuals (or tissues) that are of the same species however antigenically distinct; also called homologous allogeneic graft.
Cells or tissues which are genetically different because they are derived from separate individuals of the same species. Also refers to a type of immunological reaction that occurs when cells are transplanted into a genetically different recipient.
Taken from different individuals of the same species.
With a different set of genes (but same species). For example, an organ transplant from one nonrelated human to another is allogeneic. An organ transplant from a baboon to a human would be xenogeneic.
Genetically different and therefore incompatible when transplanted.
Bone marrow, stem cells, or other tissue donated by another person.
Having a different genetic constitution but belonging to the same species.
In the field of medical procedures, there exists a transplantation technique in which the donated material originates from an individual who possesses genetic dissimilarity to the recipient, although they may often share a biological relationship.