Scienti? c opinion was once evenly divided regarding the geographical origin of
ID: 156840 • Letter: S
Question
Scienti? c opinion was once evenly divided regarding the geographical origin of the modern human. Two hypotheses
were put forward the Out-of-Africa hypothesis and the Multi-Regional hypothesis. In general, researchers now accept that the Out-of-Africa hypothesis is better supported by current information. Findings from worldwide human fossil sites that would best support the Out-of-Africa hypothesis include?
A. dating of fossils by radioactive uranium.
B. the degree of decomposition of remains.
C. the present-day climate of the region.
D. variations in mitochondrial DNA.
Explanation / Answer
D. variations in mitochondrial DNA.
The Out of Africa or African Replacement Hypothesis is a theory that says that every living human being is descended from a small group in Africa, who dispersed into the world displacing earlier forms (such as Neanderthal).
Researches carried out by scientists, on mitochondrial DNA, in early 1900's suggestes that all humans ultimately descended from one female: the Mitochondrial Eve.
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