DNA Repair (IMAGE) University of California - Davis Caption This schematic depicts molecules of the DNA repair protein, Rad51(green ovals), assembling into a filament on an optically trapped DNA molecule. Below, a series of images shows a fluorescently-labeled Rad51/DNA filament growing progressively longer over the course of 10 minutes. Credit Stephen Kowalczykowski/UC Davis Copyright: UC Regents Usage Restrictions One-time usage rights to accompany story related to the University of California, Davis, news release. Must contain image credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.