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Genetic variation

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Genetic variation, variation in alleles of genes, occurs both within and among populations. Genetic variation is important because it provides the “raw material” for natural selection.

For more information about Genetic variation, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.


News tagged with genetic variation

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Microcephaly genes associated with human brain size

Medicine & Health / Genetics

created Dec 21, 2009 | popularity 3.7 / 5 (3) | comments 1

A group of Norwegian and American researchers have shown that common variations in genes associated with microcephaly - a neuro-developmental disorder in which brain size is dramatically reduced - may explain differences ...


New genes for lung disease discovered

Medicine & Health / Genetics

created Dec 13, 2009 | popularity 5 / 5 (3) | comments 0

(PhysOrg.com) -- Scientists have discovered five genetic variants that are associated with the health of the human lung. The research by an international consortium of 96 scientists from 63 centres in Europe and Australia ...


Nanosphere's Disposable Cartridge

Gene Testing In the Doctors Office

Nanotechnology / Bio & Medicine

created Dec 02, 2009 | popularity 5 / 5 (5) | comments 0

(PhysOrg.com) -- A portable instrument manufactured by Nanosphere Inc. and recently approved by the FDA, can detect genetic variations in blood that alter the effectiveness of some drugs.


Some birds listen, instead of look, for mates

Biology / Plants & Animals

created Dec 02, 2009 | popularity not rated yet | comments 0

Looks can be deceiving, but certain bird species have figured out that a voice can tell them most of what they need to know to find the right mate.


Study identifies genetic predeterminants for diabetes in African-Americans

Study identifies genetic predeterminants for diabetes in African-Americans

Medicine & Health / Genetics

created Dec 09, 2009 | popularity not rated yet | comments 0

For years, scientists have tried to determine the basis for discrepancies between race and the predisposition for development of diseases such as type II diabetes and cardiovascular disease. Could factors ...


Heart failure linked to gene variant affecting vitamin D activation

Medicine & Health / Genetics

created Dec 01, 2009 | popularity not rated yet | comments 0

Previous studies have shown a link between low vitamin D status and heart disease. Now a new study shows that patients with high blood pressure who possess a gene variant that affects an enzyme critical to normal vitamin ...


First 'genetic map' of Han Chinese may aid search for disease susceptibility genes

Medicine & Health / Genetics

created Nov 25, 2009 | popularity not rated yet | comments 0

The first genetic historical map of the Han Chinese, the largest ethnic population in the world, as they migrated from south to north over evolutionary time. was published online today by the American Journal of Human Ge ...


Against expectations, genetic variation does not alter asthma treatment response

Medicine & Health / Diseases

created Nov 24, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- Studies have suggested that asthma patients with a specific genetic variation might not respond as well to certain treatments as those with a different variation. But a new study in this week's edition of ...


Genetic variant may control lung function and risk of COPD

Medicine & Health / Diseases

created Dec 17, 2009 | popularity not rated yet | comments 0

Researchers have discovered evidence that suggests a genetic variant may be associated with better preserved lung function among children with asthma and adults who smoke, according to a new study funded by the National Heart, ...


Genetic link to heart failure

Medicine & Health / Genetics

created Dec 15, 2009 | popularity not rated yet | comments 0

A team of researchers, at Washington University School of Medicine, St Louis, has identified a group of 12 genetic variants in the HSPB7 gene that is associated with heart failure in humans.