Mitochondria from the beginning, Douglas Wallace

Interviewee: Douglas Wallace. Molecular geneticist Douglas Wallace talks about the origin of our mitochondria and the DNA within. (DNAi Location: Applications > Human origins > Gene genealogy > Mitochondrial DNA (mtDNA) > Mitochondrial and mtDNA)

Mitochondrial DNA is a small piece of DNA that's located in structures outside the nucleus, these structures called the mitochondria. The mitochondria are actually ancient bacteria that entered the early cells when they were still just single living cells about three billion years ago and have formed a symbiotic relationship in which the mitochondria live as a conolinear bacteria inside our cells. Now because they are bacteria they have their own information system, which is DNA and they convert that information into structures in the form of RNA and then proteins.

molecular geneticist,ancient bacteria,douglas wallace,human origins,location applications,dnai,mitochondrial dna,symbiotic relationship,interviewee,rna,nucleus,mitochondria,proteins,information system,cells

Related Content

15180. Inheritance of mitochondrial DNA, Douglas Wallace

Molecular geneticist Douglas Wallace talks about the way mitochondrial DNA is inherited.

  • ID: 15179
  • Type: video
  • Source: DNAi

15178. Mitochondrial DNA and the molecular clock, Douglas Wallace

Geneticist Douglas Wallace explains a method of mapping a population's history using the mutations accumulated by its members.

  • ID: 15179
  • Type: video
  • Source: DNAi

16647. Higher cells incorporate an ancient chromosome.

DNAFTB Animation 30: Ivan Wallin presents his idea that mitochondria and chloroplasts were once free-living organisms.

  • ID: 15179
  • Type: video
  • Source: DNALC.DNAFTB

15188. Native American haplogroups: European lineage, Douglas Wallace

Mitochondrial DNA pioneer Douglas Wallace speaks about a possible migration of people from Europe to the Americas, 15,000 years ago.

  • ID: 15179
  • Type: video
  • Source: DNAi

15153. Preservation of ancient DNA, Svante Paabo

Evolutionary geneticist Svante Paabo talks about the environments that will best preserve ancient DNA.

  • ID: 15179
  • Type: video
  • Source: DNAi

15183. Support from Mitochondrial DNA, Douglas Wallace

Mitochondrial DNA research pioneer Douglas Wallace speaks about mitochondrial DNA and theories of human evolution.

  • ID: 15179
  • Type: video
  • Source: DNAi

15182. Studying indigenous populations, Douglas Wallace

Mitochondrial DNA research pioneer Douglas Wallace speaks about the populations he samples and the direct application of the research.

  • ID: 15179
  • Type: video
  • Source: DNAi

15610. Mitochondrial DNA (mtDNA) human family tree

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.

  • ID: 15179
  • Type: video
  • Source: DNAi

16646. Concept 30: Higher cells incorporate an ancient chromosome.

Mitochondria contain a circular genome molecule, tightly packed with genes.

  • ID: 15179
  • Type: video
  • Source: DNAFTB

15186. From Africa to Europe and Asia s, Douglas Wallace

Mitochondrial DNA pioneer Douglas Wallace explains the movement of different lineages of humans from Africa into Europe and Asia.

  • ID: 15179
  • Type: video
  • Source: DNAi