image: This shows positive supercoiling of DNA during mitosis promotes chromosome resolution. This image relates to an article that appeared in the March 11, 2011, issue of Science, published by AAAS. The study, by Dr. J. Baxter, at Medical Research Council in London, UK, and colleagues was titled, "Positive Supercoiling of Mitotic DNA Drives Decatenation by Topoisomerase II in Eukaryotes." view more
Credit: Image © <i>Science/</i>AAAS