Mechanisms of Evolution

 

Darwinian Model

Survival of the fittest; selection based on alleles that give an individual a more fit phenotype. Speciation.

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  • Watch video clip from Lecture 31 (5:57 - 8:28)

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Human Migration and the Out-of-Africa theory

Mapping humans based on genetic diversity. Support for Out-of-Africa theory for and human movement through time.

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  • Watch video clip from Lecture 32 (33:27 - 40:11)

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Molecular Evolution

Use of DNA alignment as evolutionary chronometers. Determine relationships between organisms/phylogeny based on similarities in DNA sequence. Example: 16S rRNA genes.

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  • Watch video clip from Lecture 31 (13:14 - 30:44)

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Evolution

Various mechanisms of evolution on a population and molecular level.

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Evolution–Mechanisms

Definitions and descriptions of various processes involved in evolution such as the Bottleneck Effect.

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