Polly The Sheep is Born

Polly, the human genetically engineered Poll Dorset sheep was born in July 1998 at the Roslin Institute in Roslin, Scotland. Keith Campbell, PPL Therapeutics and Ian Wilmut of the Roslin Institute mixed human genetic material with fetal sheep cells, then inserted the DNA mixture into a sheep egg nucleus. The cell developed into a new sheep with the human genetic material.

      July, 1998
      Keith Campbell, Ian Wilmut
      Roslin, Scotland

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