News tagged with dna sample

Bowhead whales using the Northwest Passage

(PhysOrg.com) -- According to a new study published in Biology Letters, the climate changes and melting of ice in the Northwest Passage are leading to the mingling of two bowhead whale populations that have b ...

Sep 22, 2011 report
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New technique fills gaps in fossil record

University of Pennsylvania evolutionary biologists have resolved a long-standing paleontological problem by reconciling the fossil record of species diversity with modern DNA samples.

Sep 19, 2011
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New DNA analysis thousand times more sensitive

(PhysOrg.com) -- An international team of researchers has developed a new DNA technology which makes it possible to perform reliable analyses on DNA quantities that are a thousand times smaller than was previously the case. ...

Jun 17, 2011
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Scientists find gene linked to alcohol consumption

Scientists have identified a gene that appears to play a role in regulating how much alcohol people drink, in a study of over 47,000 people published today in Proceedings of the National Academy of Sciences.

Apr 04, 2011
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City living helped humans evolve immunity to TB

New research has found that a genetic variant which reduces the chance of contracting diseases such as tuberculosis and leprosy is more prevalent in populations with long histories of urban living.

Sep 23, 2010
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