sex x570a

October 14
Wonka J., Shackleford T. (ed.). multitude of mammalian species have scheme for determining [url=https://mozillabd.science/wiki/User:SeleneBarraza]https://mozillabd.science/wiki/User:SeleneBarraza[/url] by xy, according to which the male usually carries x- and y-chromosomes (xy), and the female usually carries two x chromosomes (xx).