|
 |
|
genetic drift
genetic drift - Change in allele frequency from one generation to another within a population, due to the sampling of finite numbers of genes that is inevitable in all finite-sized populations. The smaller the population, the greater is the genetic drift, with the result that some alleles are lost, and genetic diversity is reduced. Thus minimization of genetic drift is an important consideration for conservation of genetic resources. [FAO] News archive for genetic drift. New Scientist (subscription),A statistical analysis suggests that the skull differences between the two species stems not from positive natural selection but from genetic drift, Birds' memories help them learn to fly - Aug 15, 2007 Science Daily (press release)...full article Genetic drift -- Genetic drift is the term used in population genetics to refer to the statistical drift over time of gene frequencies in a Black Death casts a genetic shadow over England - Aug 1, 2007 New Scientist (subscription),Hoelzel thinks random genetic drift may have lowered genetic diversity naturally. But the large unexpected drop in diversity was more likely to have been Mapping the origins of the lab mouse - Aug 15, 2007 Ars Technica,...experiments to be performed on large groups, or at different times, with relative certainty that genetic drift isn't going to be much of an influence. Handsome By Chance: Why Humans Look Different From Neanderthals - Aug 13, 2007 Science Daily (press release)Instead, random "genetic drift" is the likeliest reason for these skull differences. Weaver conducted the research with Charles Roseman, an anthropologist Genetically modified corn ains approval - Jul 27, 2007 Central Maine Morning Sentinel,Genetic drift, the cross pollination of a genetically modified crop with a non-modified crop, may occur, said Jemison, a water quality and soil specialist » Report: Not all evolution has purpose « - Jul 24, 2007 Baltimore Examiner,Describing their contributions to genetic drift online in Public Library of Science Genetics, Katsanis says the Johns Hopkins experiments demonstrated that MicroRNA: Introducing the mirtron - Jul 30, 2007 Nature.com (subscription),If so, mirtrons would be lost rapidly through selection if they were deleterious, or slowly through genetic drift if they were neutral, GENETICALLY MODIFIED CORN Next step: Do no harm - Aug 1, 2007 Kennebec Journal,Equally worrisome was the issue of so-called "genetic drift" -- unlike the earlier experiment with Bt potatoes, which self-pollinate, one corn plant Handsome by Chance - Aug 1, 2007 UC Davis,Instead, random "genetic drift" is the likeliest reason that humans acquired smooth foreheads and strong lower jaws. Weaver conducted the research with Full Text - Aug 9, 2007 Science Magazine (subscription)In this work, we used populations with an intermediate effective population size—big enough that genetic drift is unlikely to drive slightly deleterious Chance, Not Natural Selection, Gave Homo Sapiens Their Elegant Skulls - Jul 25, 2007 MedIndia,...revealed that the genetic drift, in which physical features change randomly, without an environmental driving force, was responsible for the skull archives | news | XML / RSS feed | featured
|
MONGABAY.COM
SUPPORT You can help support mongabay.com by becoming a contributor to keep this site up and running. Thank you for your continued interest in the site. Help support mongabay.com! Use the link below to buy from Amazon.com! 
T-SHIRTS 
Madagascar Wildlife Save Madagascar 
Sucking on this frog may make you insane 
In Madagascar there are lemurs that dance 
Don't fall asleep the sloths will eat you < 
Canvas shopping bags Some Blogs: How to Save the World Bottleworld Earth-Info.Net NewScientist Blog Gristmill Journal Watch Celsias Cleantech Blog EcoGeek EcoSherpa Earth Blog GreenOptions Lime Plenty Magazine How the World Works ScienceBlogs Sierra Club Compass The Oil Drum Treehugger Triple Pundit WorldChanging TOPICS Africa Agriculture Alternative Energy Amazon Amphibian Crisis Amphibians Animal Behavior Antarctica Asia Australia Automobiles Biodiversity Bioenergy Biofuels Biomimicry Birds Borneo Brazil Bushmeat California Carbon Dioxide Carbon Finance Carbon Sequestration Cellulosic Ethanol China Climate Change Congo Conservation Coral Reefs Deforestation Ecological Services Endangered Species Energy Environment Environmental Law Environmental Politics Ethanol Extinction Fires Fishing Forests Fossil Fuels Green Business Green Design Green Energy Greenland-Arctic Happy-Upbeat Environmental Hurricanes Illegal Logging India Indigenous People Indonesia Interviews Invasive Species Lemurs Logging Madagascar Mammals Monkeys New Guinea Ocean Acidification Oceans Oil Olpc Orangutans Palm Oil Plants Politics Pollution Population Poverty Alleviation Primates Remote Sensing Renewable Energy Reptiles Saving Rainforests Sea Ice Sea Levels Sea Turtles Sharks Solar Power Species Discovery Strange Technology United States Water Whales Wildlife more |
|
About | Privacy Copyright Rhett Butler 2009 |
