using nuclear transfer. In 1985, the first transgenic animal, an animal whose DNA is altered to contain some human genetic material, was created to produce a human growth hormone in its milk (Cloning 154).
             Ian Wilmut and his colleagues at the Roslin Institute, in February 1997, announced the successful cloning of a ewe, Dolly. This was significant because Dolly was the first animal to be cloned from an adult, rather than an embryonic cell. Many scientists prior to this had tried and failed to clone from adult cells. It was believed that once a cell had specialized, or gone beyond its early stages and develope
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