News tagged with genetic selection

Evolution may take giant leaps

(PhysOrg.com) -- A new study of thousands of species of plants and animals suggests new species may arise from rare events instead of through an accumulation of small changes made in response to changes in ...

dateDec 11, 2009 in Evolution weblog
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Probing Question: What is a heritage turkey?

(PhysOrg.com) -- Over 45 million turkeys are eaten by Americans each Thanksgiving, according to the U.S. Department of Agriculture. Hunters provide some -- last autumn, about 24,000 wild turkeys were harvested ...

dateNov 19, 2009 in Other
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Geography and history shape genetic differences in humans

New research indicates that natural selection may shape the human genome much more slowly than previously thought. Other factors -- the movements of humans within and among continents, the expansions and contractions of populations, ...

dateJun 05, 2009 in Genetics
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