Fluorescing Flies (IMAGE) Brown University Caption Fruit flies treated with a gene that glows green in the presence of the RNA‑editing enzyme ADAR show significant individual variations (white arrows) where the enzyme is active and how much of it is present. The bottom row enlarges the areas described by white boxes in the top row. Credit Credit: Reenan Lab/Brown University Usage Restrictions None 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.