High Performing/Low Performing Cells (IMAGE) University of Texas at Austin Caption Researchers at the Cockrell School of Engineering develop yeast cells that produce so much lipids, the cells float to the top of a tube. Credit Cockrell School of Engineering at The University of Texas at Austin Usage Restrictions None 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.