Embryo's First Division (VIDEO) University of California - San Diego This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption An embryo of a roundworm (C. elegans) is shown undergoing its first division. The embryo expresses fluorescent probes that mark the chromosomes in magenta and the microtubules--the filaments that separate the chromosomes--in gray. Credit Desai Lab, UC San Diego Usage Restrictions Must be used in conjunction with Science paper on cell division. 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.