07 October 2005
Vol 310, Issue 5745

About The Cover

Cover image expansion

COVER A set of Viewpoints in this issue of Science highlights the signaling pathways that control the cellular life cycle, from undifferentiated stem cells to cell death by apoptosis. These signaling pathways are represented by canonical pathways, as well as pathways specific to rice, Arabidopsis, and humans, in the Connections Maps database at Science's STKE. [Illustration: Chris Bickel]