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Molecular biology

Damage control

The chemical composition of normal DNA at the end of chromosomes does not differ from that of damaged and broken DNA within chromosomes. New findings hint at how the DNA-repair machinery distinguishes the two.

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Figure 1: Protection of telomeres from the DNA-damage response.

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Azzalin, C., Lingner, J. Damage control. Nature 448, 1001–1002 (2007). https://doi.org/10.1038/4481001a

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