A Healthy Mitotic Spindle (IMAGE) University of Oregon Caption A normally operating mitotic spindle in C-elegan with chromosomes in red amid pipe-like microtubules in green and densely packed microtubules in yellow. Centrioles, unseen, are inside the two yellow clusters at each spindle pole. Image obtained by University of Oregon researchers using microscopy techniques. Credit Courtesy of Kenji Sugioka Usage Restrictions Use 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.