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Distribution of active CDC-42 depends upon identified polarity proteins. Embryos expressing GFP::GBDwsp-1 during phases I and II. Embryos from untreated mothers or those depleted of SPD-5, PAR-2 or PAR-6. Also, probe localization in an embryo coexpressing CDC-42(Q61L). Arrowheads indicate polarized enrichment of cortical signal. Bar, 10 μm.
