Oscillating Cdc42 (image) Lehigh University Caption Active Cdc42 oscillates through yeast cells. The tips are sites of cell growth and the presence of active Cdc42 at the tips activates processes that contribute to cell growth. Credit Lehigh University Usage Restrictions None 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.