Figure 2

Histogram of mutation biases and minimal contrasts. Histogram of mutation biases (Figures 2A and 2B) and minimal contrasts (Figure 2C and 2D). Figures 2A and 2C are complete histograms. Figures 2B and 2D are enlarged fragments of the outlined areas of figures 2A and 2C, respectively. 2B: red selection contains only those contexts that have {C > T|1, CG} and {G > A|2, CG} subcontexts and the contexts {C > T|1, CG} and {G > A|2, CG} themselves. 2D: the red selection contains only the {C > T|1, CG} and {G > A|2, CG} contexts. The brown selections in figures 2B and 2D contain only the following contexts: {T > C|2, ATTG} and complementary {A > G|3, CAAT}, {T > C|2, ATAG} and {A > G|3, CTAT}, {A > C|1, ACAA} and {T > G|4, TTGT}. 2C, 2D: red dots show a normal distribution (expectation 0.99, standard deviation 0.12).