_:b665502916 . _:b665502916 . _:b665502916 . _:b665502916 . _:b665502916 . _:b665502916 "Similarity that is characterized by the organization of anatomical structures through the expression of homologous or identical patterning genes." . _:b665502916 . _:b665502916 . _:b665502916 . _:b665502916 .