Scientists have made a long-awaited breakthrough in human cloning, by using human skin cells to create early-stage embryos.
In what is being described as a "significant milestone" for medicine, the team from Oregon Health and Science University successfully used a technique which utilised a human skin cell and a woman's egg to produce an embryo which was a genetic copy of the original skin cell. The resulting embryos were then used as a source of stem cells, which can be used to create specialised tissue cells for transplant operations.

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