Cancer (IMAGE) Arizona State University Caption A new study examines the relative ages of human genes, including those implicated in cancer. The findings suggest that a propensity for rapid mutation -- one of the hallmarks of cancer -- may be ancient and deep-rooted. Credit Jason Drees for the Biodesign Institute 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.