News of the WeekANIMAL CLONING

Cloned Mice Provide Company for Dolly

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Science  24 Jul 1998:
Vol. 281, Issue 5376, pp. 495-497
DOI: 10.1126/science.281.5376.495

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Dolly, the cloned sheep, can no longer be considered a fluke: In this week's issue of Nature, researchers at the University of Hawaii, Honolulu, provide the first scientific report confirming that cloning from adult cells is not only possible but repeatable. In it, they describe experiments that have so far yielded more than 50 cloned mice. Two other reports in the same issue describe DNA analyses proving that Dolly and the ewe she was cloned from are indeed genetically identical, as would be expected of clones.