Jesse James: results, Mark Stoneking
Interviewee: Mark Stoneking. Mark Stoneking talks about Jesse James's results.
Jesse James had a sister Zelda or Zirelda, who had a descend - who had a daughter who had a daughter, and who had a son so we had his, a sample of his mitochondrial DNA, and another maternal relative of Jesse James. So, and when we compared them all, all of the mitochondrial DNA sequences matched. So we're unable from the DNA analysis to exclude him as being a maternal relative of the Jesse James lineage. Now it could still be that he's, the skeletal remains were not those of Jesse James but rather those of someone who by chance happens to have the same mitochondrial DNA type. We can estimate what the probability of that would be from a database of mitochondrial DNA types and that particular mitochondrial DNA type is actually unique in our database, so it's a very small probability that that, some random individual would have that same mitochondrial DNA type. So from that we concluded that he was indeed Jesse James, although for those who still counted themselves among the descendants of the claimants to be Jesse James, it still was not sufficient evidence.
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Mark Stoneking talks about Jesse James' remains.
Geneticist Mark Stoneking, one of the authors of a controversial 1987 paper on mtDNA, talks about our common female ancestor.
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.
Mark Stoneking talks about solving one of history's mysteries
Human mitochondrial DNA is 16,569 base pairs in length.
Geneticist Mark Stoneking speaks about the findings of early mitochondrial DNA studies.
Unlike nuclear DNA, mtDNA is Â inherited solely from the mother. (Mitochondria are predominantly from the motherâs egg and not from the fatherâs sperm.) Therefore, mtDNA sequences or orders of nucleotides generally remain constant over many generation
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,
Geneticist Mark Stoneking talks about the difficulties of measuring time by mutations.
Mitochondrial DNA pioneer Douglas Wallace explains the movement of different lineages of humans from Africa into Europe and Asia.