Cover Complex (IMAGE) Brown University Caption Brown University biologists have solved the structure of a DNA-protein complex critical to mobile DNA, which insert foreign genes into target cells - a process that's a powerful force in evolution and the spread of disease. The complex is pictured here on the November 17 cover of Molecular Cell. Credit Marta Radman-Livaja Usage Restrictions Must credit Marta Radman-Livaja 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.