| 单词 | genetic drift |
| 释义 | genetic driftnounrandom changes in the frequency of alleles in a gene pool, usually of small populations. Compare gene flow. Origin of genetic driftFirst recorded in 1955–60 Words nearby genetic driftgenetic counseling, genetic counselling, genetic disease, genetic disorder, genetic dominant, genetic drift, genetic engineering, genetic fallacy, genetic female, genetic fingerprint, genetic fingerprinting Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Cultural definitions for genetic driftgenetic drift A term that describes the random fluctuations in a gene pool over time. In large populations, the effects of genetic drift are negligible. (Compare natural selection.) 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. Medical definitions for genetic driftgenetic drift n.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. Scientific definitions for genetic driftgenetic 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. |
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