The Trick To DNA's Self-Repairing Ability Is In Its Own Blueprint Cody Drabble Tuesday, April 11, 2017 | Sacramento, CA Listen / download audio Update RequiredTo play audio, update browser or Flash plugin. NIH Image Gallery / Flickr The Davis Science Café is back with a conversation with Prof. Sheila David from the UC Davis Chemistry Department. She will talk about DNA chemistry and how the body repairs itself on the smallest scale. The event will be on Wednesday, April 12, 2017 at G Street Wunderbar.