AG Jacob (IMAGE) Johannes Gutenberg Universitaet Mainz Caption Arbeitsgruppe von Prof. Dr. Claire Jacob (stehend, 2.v.r.) am Institut für Entwicklungsbiologie und Neurobiologie der JGU Credit Foto/©: Doris Franke / JGU Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted. License CC BY-NC-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.