Figure 6.

Effect of initial age distribution on population fluctuations. The growth of cell populations is simulated from a single cell for generation time distributions I and II (see legends and caption to figure 1d). For synchronized populations the initial age of a starting cell is taken to be zero. For asynchronous growth the initial age of a cell is chosen randomly from 0 to τ. The red arrows show increasing the asymptotic values of relative dispersions for asynchronous growth compared with synchronized condition. The effect of initial age distribution on (σ/N)_lim is greater for less dispersed generation time distribution (I verus II) and is absent for constant cell division rate.