Spindle breaks apart (VIDEO) Northwestern University This video is under embargo. Please login to access this video. Caption After the motor protein dynein is removed, the spindle breaks apart, leading to ejection of individual chromosomes into the cytoplasm. Credit Sadie Wignall/Northwestern University/eLife Usage Restrictions Add credit License Original 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.