University of California - San Francisco Jan 27 2026 Every second, millions of cells in your body divide in two. In the space of an hour, they duplicate their DNA and grow a web of protein fibers around it called a spindle. The spindle extends its many fibers from the chromosomes in the center to the edges of the cell. Then, with extraordinary force, it pulls the chromosomes apart. How the spindle accomplishes this without destroying itself has long been a mystery.  Now, scientists at UC San

Tag-uri: DNA