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Repression of EGFR activity restores R8 cell fate in gro mutant cells in the MF. (A–B) Mutant mosaic clones are marked by the absence of GFP. (C–D) RNAi clones are marked with GFP. Yellow arrows point to mutant cells close to the MF. gro pnt mutant cells lack Ro and have extra Sens expression (A–A″). Ato is expressed in most of the gro pnt mutant cells (B). ato5′-lacz is suppressed by gro-RNAi (C). ato5′-lacz is expressed strongly in gro-pnt-RNAi clones (D).
