Human embryos created using a so-called "virgin conception" technique have been made in the UK for the first time. The Roslin Institute, which also cloned Dolly the sheep, reported the so-called parthenotes at a Dublin conference. They are made by stimulating a human egg to start dividing like an embryo without the addition of any genetic material from a male sperm cell. The Edinburgh team has so far created six parthenotes to the stage at which they would hope to mine stem cells. "At the moment we have not managed to get stem cells from these embryos but that...