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Britain gives scientists permission to genetically modify human embryos

By Rachel Feltman February 1

 On Monday, Britain's Human Fertilisation and Embryology Authority greenlighted experiments that will attempt to edit the genes of human embryos. The work, which will be the world's first officially approved use of public funding for human-genome editing, is to be led by The Francis Crick Institute's Kathy Niakan.

The news comes less than a year after the first reports of human-gene editing — published by Chinese scientists in the journal Protein and Cell — using the fantastic and at times troubling technology known as CRISPR. By harnessing an ancient defense mechanism built into bacteria, CRISPR allows scientists to target, delete and replace specific genes. It has been used extensively in other organisms, but research in humans has been slow.

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