Ribosomal DNA (IMAGE) Stowers Institute for Medical Research Caption Human chromosomes are stained blue (DAPI) with ribosomal DNA in green (FISH probe). Credit Image courtesy of Tamara Potapova, Ph.D. Usage Restrictions None 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.