Fig. 2. DNA Double-strand Breaks (IMAGE) Moscow Institute of Physics and Technology Caption The arrows in A indicate cells fluorescently stained for proliferation that have suffered DNA double-strand breaks. The bar chart (B) illustrates the change in the number of proliferating cells from the third to the 11th passage for control cells and the cells exposed to low- and intermediate-dose irradiation -- at 80 mGy and 1,000 mGy, respectively. Credit MIPT Press Office 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.