10 January 2012
Vol 5, Issue 206

About The Cover

Cover image expansion

Online Cover This week features a Focus Issue on Wnt and β-catenin signaling in development and disease. Content in this issue highlights new functions for Wnt in cancer, tooth development, and neuronal pathfinding. The image shows the distribution of Bmp4 in a developing mouse tooth. [Image: Daniel J. O'Connell/Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA]