A–C, Embryos were unilaterally injected with control MO (40 ng, A), Daam1 MO (40 ng, B) or with N-Daam1 RNA (3 ng, C) as indicated. RFP-H2B RNA is a lineage tracer (100 pg, red). Dorsal views are shown, anterior is to the top. Arrows in B and C point to lack of reporter activation on the injected side. D, Frequencies of embryos with inhibited sox10:GFP expression. The number of embryos analyzed is indicated on top of each bar.