Scientists in Oregon are the first to successfully clone a primate embryo. The research team at Oregon Health & Science University used skin cells from rhesus macaque monkeys to create the cloned embryos. They then extracted embryonic stem cells from the just-created embryos.
The new work is published online in the journal Nature.
In 2004, Korean researchers fraudulently claimed to have used a similar process to clone a human embryo.
Joe Palca, NPR's science correspondent, discusses the new research, which scientists hope may one day be used to create customized stem-cell therapies.
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