DNA studies has a significant value to Archaeology, it displays data of how the origin of humans occurred. DNA/genes show patterns of variation. Comparative genomics of modern living populations/specie's, to the Mitochondrial DNA of fossils. mtDNA is DNA only inherited in females. It displays the gradual changes from random mutations. Mitochondrial DNA also clarifies the 'Out-of-Africa' theory as it explains the distribution of early human ancestors.
Chromosome Y is also exposes how closely related species are. |
Figure 1, compares ideas on the 'Out-of-Africa' and the 'regional community' theories.
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Advantages-
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Figure 2 visually displays 'law of superposition'.
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