The Digital Genome (IMAGE) InsideOutBio Caption Flipons are scattered through the genome. They switch between the regular B-conformation and an alternate DNA structure. There are different classes of flipons with different numbers of DNA strands ( 2 for Z-DNA, 3 for a triplex and 4 for a quadruplex) and DNA sequence requirements. Flipons alter how a chromosome is read out. The message produced depends on the flipon conformation. They act as digital switches to turn one message on or another message off. Credit Alan Herbert Usage Restrictions Credit Alan Herbert 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.