What is the recent model of African origin?
recent model of African origin, also known as (recent) model outside Africa and a recent hypothesis with one origin, is a scientific hypothesis of human origin. He claims that the common predecessor of all modern people developed 200,000 and 100,000 years ago in East Africa. About 60,000 years ago, a small subgroup left Africa to colonize the rest of the world and move other living species in the genus homo , such as homo Neanderthalis along the way. About 15,000 years ago, all continental land mass was colonized by our species except Antarctica.
While the recent model of African origin has become almost generally in the scientific mainstream today, it has not been the case for many centuries. In fact, the recent model of African origin was formulated only in the 80s on the basis of studies of modern mitochondrial DNA (MDNA) and subsequently supported by work in physical anthropology. Before, the dominant hypothesis WAS Multi -regional hypothesis that claims that different races independently developed from StarovFar species in the family homo . Multiregionalists often claim that Europeans came from Neanderthals. Studies of mitochondrial DNA refuted these theories.
As mentioned earlier, the original support of the recent model of African origin came from the mitochondrial DNA testing of modern people. The mitochondrial DNA is contained in mitochondria (power plants) of human cells and is transmitted from mother to children (Matrilineally). Unlike most other DNAs in the human body, these DNA remains essentially the same, while it passes from mother to child, even if it mutates over the years. Since the MDNA rearrangement is much less extensive than DNA in human chromosomes, it can be used to confirm the individual's membership in a given mattiralineal line.
What the tests of the MDNA show is that all human beings are relatively closely related to the species and that everyone in the world can trace their pedigree overDKs who lived in Africa less than 60,000 years ago. The recent model of African origin suggests that people have been created quite recently and that most of the world have been lacking people until recently. Although there is a good certainty about the timing of the scattering of people from Africa to Australia and Eurasia, there is more uncertainty in terms of spreading people from Eurasia to America. This event could have occurred 30,000 years ago or recently 14,000 years ago.