Gene Editing (IMAGE) ETH Zurich Caption Based on the Crispr-Cas method, researchers developed a tool for the targeted correction of defective genes. Credit colourbox Usage Restrictions Picture is copyrighted or trademark protected material owned by Colourbox or its content suppliers. 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.