Dividing Cell (IMAGE) University of Washington Caption In this rat kangaroo kidney call, bundles of tubulin protein strands (green) snag on to chromosomes (blue) as the cell prepares to divide. Credit Joshua Vaughan Usage Restrictions Must include credit. 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.