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Nature 437, 1084-1086 (20 October 2005) | doi:10.1038/4371084a; Published online 19 October 2005

Human genome: Patchwork people

Erika Check1

  1. Erika Check is Nature's Washington biomedical correspondent.
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For years it was assumed that tiny differences in our genetic make-up gave us our individual traits. Now it seems that those characteristics are caused by rearrangements of large chunks of our DNA — variations that could be the key to understanding disease. Erika Check investigates.

Exactly one year ago this week, scientists announced that they had finished the 'Book of Life'. The complete sequence of the human genome had been painstakingly reduced to an ordered list of letters representing the four bases of DNA.

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