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CRISPR is a powerful technique for editing DNA

‘Scientists are now very sure that the babies really were gene-edited’

29 November 2018

He Jiankui has now presented his controversial work at a gene editing summit in Hong Kong. CRISPR expert Helen O’Neill of University College London was there
George Church

George Church: The maverick geneticist now wants to reverse ageing

22 August 2018

He stirred controversy with his plans to bring back the woolly mammoth. But first he's working on editing sperm – and trying out his ageing reversal techniques on dogs

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