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Enzyme repairing DNA | by National Institutes of Health (NIH)
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Enzyme repairing DNA

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.


See also Image 2330 at


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


NIH funding from: National Institute of General Medical Sciences (NIGMS)

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Uploaded on October 9, 2015