Mitochondrial DNA and female lineages, Douglas Wallace
Intervewee: Douglas Wallace Mitochondrial DNA and female lineages
The only way that the mitochondrial DNA can change is by sequential mutations along female lines. And so as mutations accumulate in different female lineages then they become progressively more and more different. And as those women migrated 200,000 years ago to about 40,000 years ago and to different parts of the world, they carried along their distinctive mitochondrial DNAs. So now we can reconstruct through the mitochondrial DNA lines, the entire history of women for our species all the way back to what is now known as the Mitochondrial Eve, about 200,000 years ago.
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Geneticist Douglas Wallace explains a method of mapping a population's history using the mutations accumulated by its members.
Human mitochondrial DNA is 16,569 base pairs in length.
Molecular geneticist Douglas Wallace talks about the way mitochondrial DNA is inherited.
Mitochondrial DNA research pioneer Douglas Wallace speaks about mitochondrial DNA and theories of human evolution.
Mitochondrial DNA pioneer Douglas Wallace speaks about a possible migration of people from Europe to the Americas, 15,000 years ago.
Mitochondrial DNA pioneer Douglas Wallace explains the movement of different lineages of humans from Africa into Europe and Asia.
This illustration shows the two major mitochondrial DNA lineages. The lower branch includes only African populations. The upper branch has both African and non-African members.
DNA found in the mitochondrion of a cell differs in structure and is separate from the DNA found in the cell nucleus. Mitochondrial DNA, or mtDNA, exists as a circular loop of double-stranded DNA rather than the linear form found in nuclear DNA. However,
Mitochondrial DNA pioneer Douglas Wallace speaks about the movement of different populations out of Africa.
A pedigree illustrating maternal inheritance of mtDNA and paternal inheritance of the Y chromosome.