Rate of GFP∷CDC-25.1 nuclear accumulation is higher in AB than in P1. Plots show normalized nuclear fluorescence intensities of Ppie-1∷GFP∷CDC-25.1 in AB and P1 through time during the second cell cycle. Initial fluorescence in AB nucleus was arbitrarily set to 1. (A) Plot from representative GFP∷CDC-25.1 embryo (n = 5). (B) Plot from representative GFP∷CDC-25.1 FRAP experiment (n = 5). AB and P1 nuclei were simultaneously photobleached at 0 min.