Figure 4From: Multiple genetic switches spontaneously modulating bacterial mutabilityFrequencies of transduction of the leu gene, with S. typhi Ty2 as the donor, in isogenic strains carrying different mutL alleles. Error bars represent the standard deviation. For visual comparison, the dotted horizontal lines illustrate the mutation rates of LT2 (lower line) and LT26bpΔmutL(upper line), respectively.Back to article page