Activating a Gene's Remote Control (image) European Molecular Biology Laboratory Caption Chemical tags called chromatin modifications (green flags) activate enhancers (yellow), which act as remote controls, turning a gene (red) on or off. Credit EMBL/P. Riedinger Usage Restrictions EMBL press and picture releases including photographs, graphics, movies and videos are copyrighted by EMBL. They may be freely reprinted and distributed for non-commercial use via print, broadcast and electronic media, provided that proper attribution to authors, photographers and designers is made. High-resolution copies of the images can be downloaded from the EMBL website: www.embl.org. 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.