Scientists alter DNA to cure blood disorder in embryo

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Scientists have coaxed the mutated DNA of human embryos back into healthy code in an experiment which could one day be used to cure a range of inherited diseases. In a world's first, researchers in China proved it was possible to correct a single error in three billion letters of genetic code to remove the disease beta-thalassemia, a blood disorder. British scientists hailed the research as a "highly significant" advance. Darren Griffin, Professor of Genetics at the University of Kent,...


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