Waihangahia tētahi putanga matatini ake o tēnei rerenga Ko te āhuatanga iranga e hiahiatia ana, ko te'āhuatanga e hiahiatia ana' he āhuatanga phenotypic e whāia ana i tētahi ara.
Ko te tikanga, ko tētahi putanga matatini ake o te rerenga kōrero, ko "Ko te āhuatanga iranga e hiahiatia ana, ko te āhuatanga e hiahiatia ana rānei, he kīanga e whakamahia nuitia ana i roto i te iranga i roto i ngā horopaki rerekē".