Tim Hughes, University of Toronto (IMAGE) University of Toronto Caption This is professor Tim Hughes of University of Toronto's Donnelly Centre for Cellular and Biomolecular Research. Credit University of Toronto Usage Restrictions Only by accredited news organizations. 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.