Teaching Evolutionary Mechanisms: Genetic Drift and M&M

Teaching Evolutionary Mechanisms: Genetic Drift and M&M

Genetic Drift: 1. Eventually alleles drift to fixation or loss 2. frequency of heterozygotes declines; 1. alleles drift between frequencies of 0 and 1, sooner or later, it will hit one boundary, if it hits 1 it is fixed forever, if it hits 0 it is gone forever; allelic diversity declines; prob that an allele will drift to fixation = initial frequency

Genetic Drift: 1. Eventually alleles drift to fixation or loss 2. frequency of heterozygotes declines; 1. alleles drift between frequencies of 0 and 1, sooner or later, it will hit one boundary, if it hits 1 it is fixed forever, if it hits 0 it is gone forever; allelic diversity declines; prob that an allele will drift to fixation = initial frequency

diagram illustrating rapid genetic drift over 3 generations

diagram illustrating rapid genetic drift over 3 generations

003 - #GeneticDrift Paul Andersen describes genetic drift as a mechanism for evolutionary change. A population genetics simulator is used to show the importa...

003 - #GeneticDrift Paul Andersen describes genetic drift as a mechanism for evolutionary change. A population genetics simulator is used to show the importa...

Virtual Courseware for Inquiry-based Science Education - Currently have a virtual Drosophila lab and developing natural selection, genetic drift, and relative dating labs.

Virtual Courseware for Inquiry-based Science Education - Currently have a virtual Drosophila lab and developing natural selection, genetic drift, and relative dating labs.

Evolution: Genetic Drift, Bottleneck Effect, and the Founder Effect

Evolution - Genetic Drift, Bottleneck Effect, and the Founder Effect

Evolution: Genetic Drift, Bottleneck Effect, and the Founder Effect

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