In an era of changing laws about the rights of gamete donors, this opens their relationship to possible intervention by the sperm donors, this opens their relationship to possible intervention by the sperm donor if he decides he wants to play a role in raising the child. Cloning technology avoids this problem by permitting each member of the pair to bear a child whose genes are provided by her partner. Because the egg-donor mother also supplies to each embryo a small number of mitochondria-tiny energy factories within cells that have some of their own genetic material-this approach even affords lesbian couples an approximation of sexual reproduction. (Cloning might not be used as widely by gay males, because they would need to find an egg donor and a surrogate mother.)

(via gynocraticgrrl)