"incest" . "line bred" . "Inbreeding" . "marriage between siblings" . "Inbreeding#Domestic animals" . "inbreeding" . "line breeding" . "smaller gene pool" . "inbred" . "married" . . . "half sister" . "between cousins" . . "became a consort" . "genetic disorders" . . "Inbreeding#Measures" . "mating with a close relative" . "Incest" . "interbreeding" . "genetic closeness" . "Inbreeding#Royalty and nobility" . . "breeding of animals from the same parentage" . "union" . . "closely related" . "Inbred" . "Inbreeding" . "cousins" . "Inbreeding#Humans" . "line-bred" . "more related to their mothers than their fathers" . . "inbreed" . "Inbreeding#Linebreeding" .