Cells (IMAGE) University of Bonn Caption into which the gene for a green dye has been inserted. When illuminated, the mRNA building instructions of the dye are not degraded. The cells therefore light up green. Credit © Sebastian Pils/AG Mayer/Uni Bonn Usage Restrictions This image may be used together with the press release. 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.