Spectral Karyotype of a human female Generally, the cells of female human beings incorporate two X chromosomes, when the cells of male humans have an X plus a Y chromosome.[23] All through early fetal advancement, all embryos have phenotypically female genitalia up right up until 7 days 6 or 7, https://maps.app.goo.gl/w5XBfysi2MgYAQBN7