Dolly, Polly and other 'ollys': likely impact of cloning technology on biomedical uses of livestock.


The idea of generating transgenic livestock which secrete into their milk large quantities of proteins for therapeutic use, was pioneered in the late 1980s with the disclosure of the production of a number of transgenic sheep. One particular animal, a sheep called Tracy, produced milk where over 50% of the protein consisted of human alpha 1 anti-trypsin… (More)


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