Tracking Chromosome Missegregation (IMAGE) Rockefeller University Press Caption Thompson and Compton introduced a single fluorescent mark into the genome of a diploid cell line, induced missegregation, and identified the cells that incorrectly carried two or zero marks (green) on their DNA (blue). These cells arrested due to increased levels of the tumor suppressor p53 (purple) and its transcriptional target, the cyclin-dependent kinase inhibitor p21 (red). Credit Thompson, S.L., and D.A. Compton. 2010. <i>J. Cell Biol</i>. doi:10.1083/jcb. 200905057. Usage Restrictions Reporters may freely use these materials in news coverage, with the appropriate credit information. 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.