Relative Distance Between Genes (image) Max Delbrück Center for Molecular Medicine in the Helmholtz Association Share Print E-Mail Caption Top: Diagram with red coding for sequences that are close by, blue coding sequences further apart. Gene switch (enhancer, E) is close to gene Y but not gene X. Bottom: Position in the nucleus. Credit Credit: Pombo Lab, MDC Usage Restrictions None Share Print E-Mail 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.