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Transgenic animals help us ‘understand disease’

By Frances-Catherine Quevenco, on 10 June 2011

Fluorescent fish, goats’ milk producing silk and mice with bat-like limbs are just some of the peculiar outcomes of genetically engineered animals. “Who in the audience finds tinkering with the animal genome a little disconcerting?” asked Mark Lythgoe. A few hands shot up…and why shouldn’t they? What do transgenic animals offer apart from quirky phenotypes?