Contents

01 June 2021
Vol 14, Issue 685

About The Cover

Cover image expansion

Online Cover This week features a Research Article that delineates a pathway through which the loss of cell polarity represses Ras-induced senescence to drive tumorigenesis in flies. The image shows clones of cells expressing activated Ras (green) in a fly eye-antennal disc. [Image: Ito and Igaki/Science Signaling]