10.2 DNA provides evidence of evolution

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5 Terms

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Comparative Genomics

The comparison of genome sequences of different species.

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Endogenous retroviruses

A retrovirus that has become part of an organism’s genome and exists in every cell of the body.

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Mitochondrial DNA

Small amount of DNA that is in the mitochondrial. Mitochondrial DNA is in the form of small circular molecules.

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Inheritance of mitochondrial DNA

Inherited only by the mother.

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Evidence from mitochondrial DNA

mtDNA has a higher rate of mutation than nuclear DNA, because of these mutations human mtDNA has been slowly diverging from the mtDNA of our original female ancestor, and the amount of mutation is roughly proportional to the amount of time that has passed.