Apr 13, 2007 ... "We want to test the functionality of any male and female sperm that is made by this way," Professor Nayernia said. ...
Jan 31, 2008 ... Sperm cells have been created from a female human embryo in a remarkable breakthrough that suggests it may be possible for lesbian couples ...
Jul 2, 2009 ... At first glance, female sperm and male eggs might seem to offer an exciting option for gays and lesbians who want to be parents. ...
Female sperm live up to 5 days, male sperm up to 3 days. (Egg lives 12 to 24, maybe even 36 ... Female sperm live longer but swim slower than male sperm. ...
Feb 2, 2008 ... In a handful of labs across the world, biologists are trying to make genetically male cells develop into eggs, and female cells into sperm.
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