Fig. 5
From: The origin of a primordial genome through spontaneous symmetry breaking
The average number of cell divisions a protocell undergoes along its line of descent as a function of the degree of functional asymmetry, (k P − k M)/(k P + k M). Error bars indicate s.d. The initial fitness of protocells, measured by the expected fraction of replicators within a protocell, was kept constant for the different values of (k P − k M)/(k P + k M) (for details, see Methods section under ‘The measurement of the number of cell divisions’). Parameters: m = 0.01, d = 0.0632. V = 1700
