Golding-Wang Figure 2D 01 (image) University of Illinois College of Engineering Share Print E-Mail Caption An individual E. coli bacterium is followed over time under the microscope. Two identical chromosomal copies of a single gene are labeled in cyan. The transcriptional activity of each copy is identified by the presence of RNA (red) at the gene. Credit Mengyu Wang, Jing Zhang, Heng Xu, and Ido Golding Usage Restrictions None Share Print E-Mail 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.