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Figure 4


Fig. 4. Epistasis analysis with pipe reveals that ik2 acts upstream of the Toll-Dorsal pathway during oogenesis. (A-D) Dark-field views of larval cuticle preparations at the end of embryogenesis from (A) wild type, (B) a bicaudal embryo from an ik21 germline clone female, (C) a dorsalized embryo from a pipe1 mutant female and (D) a dorsalized embryo from a ik21; pipe1 double homozygous mutant female.