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There is currently no calibration available for the whole human mtDNA genome, incorporating both coding and control regions. Furthermore, as several authors have pointed out recently, linear molecular clocks that incorporate selectable characters are in any case problematic. We here confirm a modest effect of purifying selection on the mtDNA coding region(More)
In this context, the term 'marker' needs to be explained. Occasionally, in the course of the millennia , mutations may occur in the DNA of an organism , such as a human or a seed of grain, and these mutations are passed down to the descendants. If these descendants remain united by a common characteristic such as a language, a certain geographic area, or a(More)
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