Stem-Cell Researchers Clone Monkey Embryo

Scientists have announced another first in cloning: They have cloned a primate embryo. The researchers in Oregon say they used those cloned monkey embryos to derive embryonic stem cells.

A few years ago, South Korean scientists said they had done the same thing with human cells, but that turned out to be a fraud. The journal that published this new work took the unusual step of having an independent laboratory verify the results.

Researchers hope to one day use such a process in humans to create customized stem-cell therapies for individual patients.

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