Genetic Evidence For Theories Of Human Dispersal

Theories of Human Dispersal. The Replacement Theory (or Mitochondrial Eve and Y chromosome Adam ) vs The Multiregional Theory.

The Replacement Theory (Out of Africa Hypothesis)

This section is the part that both theories have in common, but in the Multiregional Hypothesis gene flow continues, while in the Replacement Theory there is little or no gene flow.

African Origin European Homo erectus African Archaic EXTINCT EXTINCT Asian Modern African Modern European Modern Asian Homo erectus African Homo erectus European Archaic Asian Archaic

The Out of Africa model contains the following components: ,[object Object],[object Object],[object Object],[object Object]

The Replacement Theory is most strongly supported by genetic evidence ,[object Object]

Mitochondrial DNA ,[object Object]

[object Object],[object Object],[object Object]

[object Object],[object Object]

The Y Chromosome has certain Unique Features ,[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object]

Multi – regional (Regional Continuity) Theory.

Multi-regional Theory – contains the following components: ,[object Object],[object Object],[object Object],[object Object]

Questions relating to the article by Donald Johanson “Origins of Humans: Multiregional or Out of Africa?” ,[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object]

Genetic Evidence For Theories Of Human Dispersal

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