Figure 1From: Maternal ancestry and population history from whole mitochondrial genomes Functional map of mtDNA. As in other vertebrates, human mtDNA is circular and characterized by high gene density and strand asymmetry. The heavy strand encodes all mtDNA genes except for the ND6 and has a high GT/AC ratio. Protein coding, rRNA and tRNA genes are shown in boxes distinguished by different colours. Adapted from Schon et al. [63].Back to article page