Fig. 3From: Resampling the pool of genotypic possibilities: an adaptive function of sexual reproductionFitness changes in sexual and asexual populations. Numerical simulations were performed using 20 unlinked loci. Selectively favored alleles had an initial frequency of 0.01. The selection coefficient for a favored allele was 0.1 and fitnesses were multiplicative between loci. Selection was implemented during the diploid phase of the life cycle. Three different population sizes were used: N = 100,000 (Panels A and B); N = 10,000 (Panels C and D); N = 1,000 (Panels E and F). Three replicates were performed for each simulation. Because of the greater variation between replicates in the case where N = 1,000, a further 30 replicates were performed for this case and the results are shown as a dashed line in Panel EBack to article page