Messenger Meshwork (image) Princeton University, Engineering School Caption 1st Prize, People's Choice The fruit fly ovary consists of about 100 egg chambers. Each chamber contains 15 "nurse cells." These surround the oocyte, or egg cell, which ultimately will develop into a baby fruit fly. The nurse cells synthesize RNA molecules that are ultimately deposited into the oocyte. Here we see four nurse cells. Each red or green dot is an individual RNA molecule, which is produced from DNA (shown in blue). The RNA molecules intermingle on a threadlike network that allows them to move from one nurse cell to another and then into the developing egg (which we don't see in this image). Credit Image by Shawn C. Little, Kristina S. Sinsimer, Elizabeth R. Gavis, and Eric F. Wieschaus of the Princeton University of Department of Molecular Biology Usage Restrictions Please a) credit researcher(s) as well as the Princeton University Art of Science Competition and b) link back either to our web or Facebook page: http://www.princeton.edu/artofscience/gallery2013/ https://www.facebook.com/artofsci 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.