Scientists say they have produced embryos that are clones of two men, a potential step toward developing scientifically valuable stem cells. It's the first documented demonstration that ordinary cells from an adult human can be used to make cloned embryos mature enough to produce stem cells, the researchers said. But because they haven't produced those stem cells yet, experts reacted coolly.Jan 18, 2008
Scientists produce embryo clones of two men
Scientists say they have produced embryos that are clones of two men, a potential step toward developing scientifically valuable stem cells. It's the first documented demonstration that ordinary cells from an adult human can be used to make cloned embryos mature enough to produce stem cells, the researchers said. But because they haven't produced those stem cells yet, experts reacted coolly.
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