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Nature 439, 130-131 (12 January 2006) | doi:10.1038/439130a; Published online 11 January 2006

Origins of DNA: Base invaders

John Whitfield1

  1. John Whitfield is a freelance science writer based in London.
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Could viruses have invented DNA as a way to sneak into cells? John Whitfield investigates.

What with the threat of bird flu, the reality of HIV, and the general unseemliness of having one's cells pressed into labour on behalf of something alien and microscopic, it is small wonder that people don't much like viruses. But it's possible that we may actually have something to thank the little parasites for.

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