Genetic drift

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genetic drift (drift)

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Definition

Glossary of "Life (9th ed.)" by Sadava et al. (2011)

  • Changes in gene frequencies from generation to generation as a result random (chance) processes.

Glossary of "Plant Systematics (1st ed.)" by Simpson (2006)

  • Random genetic modification of a population or species, not the result of natural selection.

Glossary of "Evolution of Plants (2nd ed.)" by Willis & McElwain (2014)

  • The random fluctuations of gene frequenceis in a population such that the genes of offspring are not a perfectly representative sampling of the parental genes.

Glossary of "Evolution (4th ed.)" by Futuyma & Kirkpatrick (2017)

Glossary of "Ancestors in Our Genome" by Harris (2015)

  • random changes in the frequency of a DNA variant or allele in a population (i.e., how common it is in the population or species) as a result of random variation in individual reproduction.

Glossary of "Environmental Science: Earth as a Living Planet (2nd ed.)" by Botkin & Keller (1998)

  • Changes in the frequency of a gene in a population as a result of chance rather than of mutation, selection, or migration.

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