A Model of DNA Damage Repair (IMAGE) University of California - San Diego Caption A group led by UCSD bioengineering professor Trey Ideker used a systems biology approach to create a model that explains how a cell responds when its DNA is damaged by a powerful chemical mutagen. Credit University of California - San Diego Usage Restrictions None 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.