Stablizing Cell's Chromosome Separating Machinery (IMAGE) University of Washington Caption If microtubules don't line up correctly on either side of a chromosome pair, the tension is weak and the attachment is released and fixed. A proper alignment secures the attachment through mechanical tension, and helps assure the chromosomes will separate accurately during cell division. Credit Charles Asbury lab Usage Restrictions For use by news media, schools and museums only. 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.