Optical Remote Control (IMAGE) University of Freiburg Caption In their new method, the Freiburg researchers introduce the genetic information with an optical remote control. As a result, only cells that are illuminated with red light take up the desired genes. Credit Michal Roessler Usage Restrictions The image may only be used with appropriate caption or 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.