Fig. 3

 A telomere-shortening-dependent model with a probabilistic length threshold fits the timing of the first non-terminal arrest. A Probability density of the shortest telomere for signalling the first non-terminal arrest. B Ordered generations of the first non-terminal arrest from the experimental data (black line, n = 115 lineages) or simulations (N = 1000) based on the probabilistic length threshold model with the blue shaded area representing the 95% quantile