Caenorhabditis Elegans Roundworms (image) Princeton University, Engineering School Share Print E-Mail Caption Princeton researchers have produced a comprehensive view of which genes are active in each of the four major tissues of the adult roundworm Caenorhabditis elegans, a model for studying the biology of multicellular organisms. Credit Image courtesy of the researchers. Illustration by Neil Adelantar. Usage Restrictions Noncommercial use Share Print E-Mail 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.