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uv1 differentiation defect in hda-1(RNAi) animals. Nomarski (left), fluorescence (middle), and overlapping (right) images of late-L4 stage animals expressing ida-1::gfp in the uv1 cells (arrow) of the ventral uterus. (A) Four uv1 cells are observed in L4440 control RNAi-treated animals. (B) No uv1 cells are visible in this hda-1(RNAi) animal. Scale bar is 20 μm.
