Figure 8.

Distribution of volumes at initiation. Simulations are as in Figure 3, with τ = 100 mins, C + D = 70 mins, and σ_τ = 20 mins as a specific, slow growth example. Square symbols separate volumes at initiation into two subpopulations, one whose cells initiated the predicted number of rounds of replication at volumes near I₀ Δ, and another whose cells initiated extra rounds of replication near twice that volume 2I₀ Δ. Solid lines plot lognormal distributions with means I₀Δ and 2I₀Δ and variances σ²_vi = 4σ²_τ/3τ² (Amir, 2014).