Figure 5: (a) Bifurcation analysis in wee1Δ and in WT fission yeast. The red points represent the unstable steady state of MPF, and the black points represent the stable steady state of MPF. The blue bar indicates the range of the size checkpoint. (b) Stochastic numerical simulation in wee1Δ and WT. The -axis and -axis represent the initial size and the duration of the cell cycle of the fission yeast. The blue bars represent the range of the cycle time for a given birth size in wee1Δ and in WT fission yeast.