Eric A. Johnson, University of Oregon (IMAGE) University of Oregon Caption Eric A. Johnson, a molecular biologist at the University of Oregon, helped to develop a genome sequencing tool known as RAD. Credit Photo by Jim Barlow 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.