(IMAGE) Center for Genomic Regulation Caption Retinal cells in zebrafish with the outer segment, the part of photoreceptor cells responsible for transforming light into nervous signals that enable vision, stained in green at the top of the image. The outer segment is significantly degraded in retinal cells with the Srrm3 gene knocked out (right) compared to normal retinal cells (left). Credit Ludovica Ciampi/CRG Usage Restrictions Credit must be given to the creator. No derivatives or adaptations of the work are permitted. License CC BY-ND 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.