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Published online 5 September 2007 | Nature | doi:10.1038/news070903-12

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Britain gets hybrid embryo go-ahead

Human-animal embryos given green light after public backing.

Britain's embryology regulators have approved in principle the creation of embryos by injecting human DNA into empty animal egg cells. Researchers are hoping to use the technique to generate human stem cells without relying on a supply of donated human eggs.

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