Follicle Progenitors (IMAGE) Carnegie Institution for Science Caption Fruit fly ovarian follicle progenitor cells, with different colors marking a specific kind of activity (red) specific gene expression (green) and nuclear DNA (blue). Credit Ming-Chia Lee and Allan Spradling Usage Restrictions With 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.