dCas9 and Cascade Comparison (IMAGE) Duke University Caption Illustrations representing the components of the common dCas9 system (top) and the Cascade system (bottom) Credit Gersbach Lab Usage Restrictions With credit 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.