MRE11 (IMAGE) Michigan Medicine - University of Michigan Caption Cells with mutations in the MRE11 gene do not detect DNA damage induced after radiation. The left image represents the normal gene, the middle image represents one copy of the mutated gene, and right image represents two copies of the mutated gene. Credit University of Michigan Health System Usage Restrictions for use in stories about this research 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.