DNA surgery on embryos removes disease

Precise "chemical surgery" has been performed on human embryos to remove disease in a world first, Chinese researchers have told the BBC. The team at Sun Yat-sen University used a technique called base editing to correct a single error out of the three billion "letters" of our genetic code. They altered lab-made embryos to remove the disease beta-thalassemia. The embryos were not implanted.
Read more: http://www.bbc.co.uk/news/health-41386849?source=Snapzu