Jumping genes (brown stain) attacking germ cell DNA (blue stain) (IMAGE) University of Edinburgh Caption Jumping genes (brown stain) attacking germ cell DNA (blue stain) in a human testis biopsy. Credit adja Rotte & Birgit Stallmeyer, University of Münster Usage Restrictions Please use the following Credit License Original 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.