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Repairing DNA

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Repairing DNA

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Like a watch wrapped around a wrist, a special enzyme encircles the double helix to repair a broken strand of DNA. Without molecules that can mend such breaks, cells can malfunction, die, or become cancerous.

Featured in the November 21, 2006, issue of Biomedical Beat.


Tom Ellenberger, Washington University School of Medicine

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Courtesy of Tom Ellenberger, Washington University School of Medicine in St. Louis, and Dave Gohara, Saint Louis University School of Medicine.

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This page last reviewed on April 26, 2011