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Transgenic animals


View Resource Major Cloning Advance

In a step that could pave the way to using animals as organ banks, scientists at the PPL Therapeutics in Edinburgh, Scotland, the same laboratory that helped produce Dolly the cloned sheep in 1996, have developed a method to selectively modify genes in sheep clones. Although transgenic modification of sheep is fairly well developed, before now, there has been no control over where the gene would...