Fig5A. Copyright: Reprinted with permission from Elsevier from [doi:10.1006/dbio.1997.8502] Dev Biol 183: 234-42, Yoshikawa Y; Fujimori T; McMahon AP; Takada S, Evidence that absence of Wnt-3a signaling promotes neuralization instead of paraxial mesoderm development in the mouse. Copyright 1997