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Evolution of genome maintenance (GM) and random genes in human, mouse, and naked mole rat (NMR). (A) Nucleotide substitutions per site. (B) Nucleotide substitutions per site (K), per nonsynonymous site (Ka), and per synonymous site (Ks). (C) The ratios of K,Ka, and Ks of GM and random genes in NMR to that in mouse. Abbreviations: H, human; M, mouse; and N, NMR.
