Can evolution paths be explained by chance alone?

Rinaldo B. Schinazi

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arXiv · 1810.05705

Can evolution paths be explained by chance alone?

Rinaldo B. Schinazi

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Abstract

We propose a purely probabilistic model to explain the evolution path of a population maximum fitness. We show that after $n$ births in the population there are about $\ln n$ upwards jumps. This is true for any mutation probability and any fitness distribution and therefore suggests a general law for the number of upwards jumps. Simulations of our model show that a typical evolution path has first a steep rise followed by long plateaux. Moreover, independent runs show parallel paths. This is consistent with what was observed by Lenski and Travisano (1994) in their bacteria experiments.

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Rinaldo B. Schinazi. 2018-10-12. Can evolution paths be explained by chance alone?. https://arxiv.org/abs/1810.05705

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