title: DNA variation and evolution.
mesh_terms: D000818:Animals; D005075:Biological Evolution; D004247:DNA / Q000235:genetics*; D004272:DNA, Mitochondrial / Q000235:genetics; D004331:Drosophila melanogaster / Q000235:genetics; D014644:Genetic Variation; D051379:Mice / Q000235:genetics
chemical_list: D004272:DNA, Mitochondrial; D004247:DNA