5 Mai 1987 Jahr - Nuclear transfer from embryonic cell

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Cow
Neal First, Randal Prather, and Willard Eyestone

Using methods very similar to those used by Willadsen on sheep, First, Prather, and Eyestone produced two cloned calves. Their names were Fusion and Copy.

This experiment added cows to the list of mammals that could be cloned by nuclear transfer. Still, mammalian cloning was limited to using embryonic cells as nuclear donors. Cloning using nuclei from differentiated adult somatic cells still wasn’t thought possible.

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