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Comparisons of Lac+ reversion frequencies between CC101 ΔmutT and CC101 ΔmutT Δndk strains. Panels A and B show two independent data sets. Reversion frequencies were calculated by dividing the number of spontaneous revertants by the corresponding viable counts. The plotted median and confidence intervals are calculated with ≥95% of the confidence of the coefficient, using 10 replicates for each strain (refer to Table S4).
