_:b663956180 . _:b663956180 . _:b663956180 . _:b663956180 . _:b663956180 . _:b663956180 . _:b663956180 "Similarity that is characterized by the organization of anatomical structures through the expression of homologous or identical patterning genes." . _:b663956180 . _:b663956180 . _:b663956180 .