Disrupted Division (IMAGE) Rockefeller University Caption In a dividing cell (above), tiny organs called peroxisomes (green) are evenly distributed in distinctive arcs. In cells lacking the protein Pex11b, peroxisomes are no longer allotted equally. Credit Laboratory of Mammalian Cell Biology and Development at The Rockefeller University/Science Usage Restrictions Image may be used only to illustrate the research described in the accompanying release. 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.