Major Histocompatibility Complexes - A Genetic Clue To Why Opposites Attract In Human Mate Selection

Sunday, May 24, 2009 - 20:28 in Biology & Nature

Professor Maria da Graça Bicalho, head of the Immunogenetics and Histocompatibility Laboratory at the University of Parana, Brazil, told the annual conference of the European Society of Human Genetics that people with diverse major histocompatibility complexes (MHCs) were more likely to choose each other as mates than those whose MHCs were similar, and that this was likely to be an evolutionary strategy to ensure healthy reproduction. Yes, opposites attract.   Even genetically.   The MHC is a large genetic region situated on chromosome 6, and found in most vertebrates. It plays an important role in the immune system and also in reproductive success. Apart from being a large region, it is also an extraordinarily diverse one.  read more

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