News tagged with genetic variation
Genetic safety in numbers, platypus study finds
(Phys.org) -- Platypuses on the Australian mainland and in Tasmania are fighting fit but those on small islands are at high risk of being wiped out from disease, according to a University of Sydney study.
May 18, 2012 |
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New study suggests polar bears evolved earlier than previously thought
(Phys.org) -- A new genetic analysis carried out by and international team of scientists has revealed that polar bears and brown bears may have diverged around 600,000 years ago, which is much earlier than ...
Apr 20, 2012 |
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Study shows humans still evolving
(PhysOrg.com) -- A new study published in the Proceedings of the National Academy of Sciences provides evidence of human evolution and rapid genetic changes suggesting that, contrary to modern claims, technological and cu ...
Oct 04, 2011 |
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Stress-induced genomic instability facilitates rapid cellular adaption in yeast
Cells trying to keep pace with constantly changing environmental conditions need to strike a fine balance between maintaining their genomic integrity and allowing enough genetic flexibility to adapt to inhospitable conditions. ...
Jan 29, 2012 |
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Single gene mutation can sweep through bacterial population, opening the door for the concept of 'species'
Bacteria are the most populous organisms on the planet. They thrive in almost every known environment, adapting to different habitats by means of genetic variations that provide the capabilities essential ...
Apr 05, 2012 |
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Genetic difference in staph offers clues as to why some patients get infections from cardiac implants
New research suggests that some patients develop a potentially deadly blood infection from their implanted cardiac devices because bacterial cells in their bodies have gene mutations that allow them to stick ...
Oct 24, 2011 |
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Mouse genetic blueprint developed
Researchers have developed a valuable mouse genetic blueprint that will accelerate future research and understanding of human genetics. The international team, led by researchers at the Wellcome Trust Sanger ...
Sep 14, 2011 |
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New biological pathway identified for post-traumatic stress disorder
High blood levels of a hormone produced in response to stress are linked to post-traumatic stress disorder in women but not men, a study from researchers at Emory University and the University of Vermont has found.
Medicine & Health / Psychology & Psychiatry
Feb 23, 2011 |
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Like humans, amoebae pack a lunch before they travel
(PhysOrg.com) -- Some amoebae do what many people do. Before they travel, they pack a lunch. In results of a study reported today in the journal Nature, evolutionary biologists Joan Strassmann and David Quelle ...
Jan 19, 2011 |
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Genome sequenced: Orangutan DNA more diverse than human's, remarkably stable through the ages (w/ Video)
Among great apes, orangutans are humans' most distant cousins. These tree dwellers sport a coat of fine reddish hair and have long been endangered in their native habitats in the rainforests of Sumatra and ...
Jan 26, 2011 |
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Castaway lizards provide insight into elusive evolutionary process
A University of Rhode Island biologist who released lizards on tiny uninhabited islands in the Bahamas has shed light on the interaction between evolutionary processes that are seldom observed.
Feb 02, 2012 |
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European neanderthals were on the verge of extinction even before the arrival of modern humans: study
New findings from an international team of researchers show that most neanderthals in Europe died off around 50,000 years ago.
Other Sciences / Archaeology & Fossils
Feb 26, 2012 |
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A 'giant' step toward explaining differences in height: Scientists map height 'hotspots' in the genome
(PhysOrg.com) -- An international collaboration of more than 200 institutions, led by researchers at Children's Hospital Boston, the Broad Institute, and a half-dozen other institutions in Europe and North ...
Sep 29, 2010 |
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New research suggests European Neandertals were almost extinct long before humans showed up
Western Europe has long been held to be the "cradle" of Neandertal evolution since many of the earliest discoveries were from sites in this region. But when Neandertals started disappearing around 30,000 years ...
Other Sciences / Archaeology & Fossils
Mar 26, 2012 |
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Scientists sequence genomes from Africa, Europe, Asia
Small genetic differences between individuals help explain why some people have a higher risk than others for developing illnesses such as diabetes or cancer. Today in the journal Nature, the 1000 Genomes Projec ...
Oct 27, 2010 |
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Genetic variation
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.
