Embryo: Precise 'chemical surgery' performed


Precise “chemical surgery” has been performed on human embryos to remove disease in a world first.

The team at Sun Yat-sen University in China used a technique called base editing to correct a single error out of the three billion “letters” of our genetic code.

Sir Paul Nurse, director of the Francis Crick Institute, told the Today programme this method is a more “targeted approach”.



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