Contents

23 June 2009
Vol 2, Issue 76

About The Cover

Cover image expansion

COVER This week's issue features a Research Article that identifies Kif7 as the mammalian equivalent of the Drosophila kinesin-like protein Costal2 in Hedgehog signaling. The image shows the polydactyly characteristic of Kif7-null mice. [Image: Rong Mo, Program in Developmental and Stem Cell Biology, The Hospital for Sick Children]