Asked by: Vivina Isaberri
science genetics

What is the multiregional continuity theory?

Last Updated: 3rd February, 2020

Multiregional evolution holds that the human species first arose around two million years ago and subsequent human evolution has been within a single, continuous human species.

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Then, what is the multiregional theory?

The multiregional hypothesis states that independent multiple origins (Model D) or shared multiregional evolution with continuous gene flow between continental populations (Model C) occurred in the million years since Homo erectus came out of Africa (the trellis theory).

Beside above, what is the assimilation model? The Assimilation Model (AM) was developed to explain the presence of evidence for small, but not insignificant, anatomical contributions of Eurasian archaic humans (including Neandertals) to modern Eurasians within a framework of the documented African origin of the majority of modern Eurasian ancestry.

Subsequently, question is, how is the multiregional model of modern human origins described?

The Multiregional Model of modern human origins predicts that a group of features, recognized as characterizing the evolution of regional populations from their archaic regional ancestors, will consistently show higher incidence in those regions.

Which of the three models proposed to explain modern human origins is best supported by the data?

The 'Out of Africa' (Replacement), 'Multiregional Evolution' (Continuity), and 'Assimilation' models are the three most widely used to interpret the origin of living human populations (Figure 2; Gibbons 2011).

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