New study has shown that live mouse progeny can be generated with assisted reproduction using germ cells from males which do not have any Y chromosome genes. This discovery adds a new light to discussions on Y chromosome gene function and evolution. It supports the hypothesis that Y chromosome genes can be replaced by that encoded on other chromosomes. In other words, genetically-female mice embryos were able to be manipulated into developing male sexual characteristics through causing an X-chromosome to manifest characteristics normally only expressed through the Y-chromosome, which appears to allow the organism to create sperm despite the lack of Y-chromosome. http://www.sciencedaily.com/releases/2016/01/160128151937.htm I guess this is important news for same-sex couples (i.e. two females) who want to have children of their own.
Yes but the mouse without the chromosome Y does not produce any sperm in other words it is an eunuch .
