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genetic drift
noun
: random changes in gene frequency especially in small populations when leading to preservation or extinction of particular genes
Examples of genetic drift in a Sentence
Recent Examples on the Web
In addition, some wild animals in zoos have been bred under human care and over time, might become susceptible to allergies through genetic drift.
—Jen McCaffery, Discover Magazine, 14 Nov. 2024
But genetic drift works to preserve mutations across generations.
—Paul Smaglik, Discover Magazine, 27 June 2024
And in small populations, genetic drift is more influential than many people realize.
—Quanta Magazine, 2 May 2024
In large populations, the effects of genetic drift are minimal.
—Quanta Magazine, 2 May 2024
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Word History
First Known Use
1945, in the meaning defined above
Dictionary Entries Near genetic drift
Cite this Entry
“Genetic drift.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/genetic%20drift. Accessed 21 Nov. 2024.
Medical Definition
genetic drift
noun
: random changes in gene frequency especially in small populations when leading to preservation or extinction of particular genes
More from Merriam-Webster on genetic drift
Britannica.com: Encyclopedia article about genetic drift
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