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Allorecognition

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Allorecognition
Allorecognition is the ability of an individual organism to distinguish its own tissues from those of another. It manifests itself in the recognition of antigens expressed on the surface of cells of non-self origin. Allorecognition has been described in nearly all multicellular phyla.

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Common Terms in Evolutionary Biology and Genetics Dictionary

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Allorecognition
Recognition by T cells of the MHC molecules on an allogeneic individual's antigen-presenting cells which results in allograft rejection in vivo and mixed lymphocyte reaction (MLR) in vitro.