Cruciform DNA Diagram (IMAGE) American Physical Society Caption Twisting palindromic DNA in the opposite direction of it's helix causes arms to sprout from the middle, turning it into the cruciform version and shortening the molecule. Credit Alexandre Dawid, Fabien Guillemot, Camille Breme, Vincent Croquette, and Francois Heslot, Phys. Rev. Lett. in production Usage Restrictions Contact the authors or the APS for photo permissions. 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.