random changes in the frequency of alleles in a gene pool, usually of small populations.
What Are Some Words For Sibling Pairs?These days, giving birth to twins is increasingly common. As many as 5 out of every 1,000 babies born shared a womb with their sibling. While cute and adorable are some starter words to use when welcoming new babies, here's a look at the lexicon to haul out when welcoming multiples!
Is Ironic The Most Abused Word In English?“That is sooooo ironic.” This sentence is used frequently — and usually incorrectly — in American English. Often the word “ironic” is misused to remark on a coincidence, such as “This is the third time today we’ve run into each other. How ironic.” It is also mistakenly used to describe something out of the ordinary or unusual: “Yesterday was a beautiful, warm day in November. It …
Compare gene flow.
Origin of genetic drift
First recorded in 1955–60
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Medicine definitions for genetic drift
Random fluctuations in the frequency of the appearance of a gene in a small isolated population, presumably owing to chance rather than natural selection.drift
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Science definitions for genetic drift
Variation in the frequency of a gene in a small isolated population, thought to be due to random chance rather than natural selection.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Culture definitions for genetic drift
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.