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Cloning

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Cloning

Cloning

Cloning

  • Download
  • <iframe src="https://www.npr.org/player/embed/1133819/133819" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">

A group of scientists in Massachusetts today claimed it had cloned the first early human embryo, for the purposes of stem cell research. Lisa talks with NPR's Richard Knox in Boston about the latest developments.

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