News tagged with dna analysis
'Starving yogi' astounds Indian scientists
An 83-year-old Indian holy man who says he has spent seven decades without food or water has astounded a team of military doctors who studied him during a two-week observation period.
May 10, 2010 |
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Genetic analysis finds that modern humans evolved from southern Africa's Bushmen
A team of Stanford University scientists, using the largest-ever genetic analysis of remote tribal people, have determined that the human family tree is rooted in one of the world's most marginal and primitive people - the ...
Mar 09, 2011 |
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Student sleuths using DNA reveal zoo of 95 species in NYC homes -- and new evidence of food fraud
Two New York City high school students exploring their homes using the latest high-tech DNA analysis techniques were astonished to discover a veritable zoo of 95 animal species surrounding them, in everything ...
Dec 28, 2009 |
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Powerful genome barcoding system reveals large-scale variation in human DNA
(PhysOrg.com) -- Genetic abnormalities are most often discussed in terms of differences so miniscule they are actually called "snips" — changes in a single unit along the 3 billion that make up the entire string of human ...
May 31, 2010 |
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What drives our genes? Researchers map the first complete human epigenome
Although the human genome sequence faithfully lists (almost) every single DNA base of the roughly 3 billion bases that make up a human genome, it doesn't tell biologists much about how its function is regulated. Now, researchers ...
Oct 14, 2009 |
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Octopus mimics flatfish and flaunts it (w/ Video)
Paul the Octopus—the eight-legged oracle who made international headlines with his amazingly accurate football forecasting—isn't the only talented cephalopod in the sea. The Indonesian mimic octopus, which ...
Aug 26, 2010 |
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The mammoths' swan song revised
This is shown by samples of ancient DNA, analysed by an international team of research scientists under the leadership of Professor Eske Willerslev from Copenhagen University. Analyses of ancient DNA thereby ...
Other Sciences / Archaeology & Fossils
Dec 14, 2009 |
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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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Study finds unexpected bacterial diversity on human skin
The health of our skin -- one of the body's first lines of defense against illness and injury — depends upon the delicate balance between our own cells and the millions of bacteria and other one-celled microbes ...
Medicine & Health / Medical research
May 28, 2009 |
5 / 5 (8) |
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Critics cast doubt on recent longevity gene study findings
(PhysOrg.com) -- A recent study of centenarians (reported in PhysOrg on July 1st) that linked a number of gene variants to longevity has now been questioned by other scientists, who suggest a DNA chip known as 610-Quad, used in ...
Jul 09, 2010 |
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African bird discovery proves there is something new under the sun
(PhysOrg.com) -- "Four and 20 black birds baked in a pie" - but wait, one has blue-gray eyes.
Mar 16, 2010 |
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AIDS virus lineage much older than previously thought
An ancestor of HIV that infects monkeys is thousands of years older than previously thought, suggesting that HIV, which causes AIDS, is not likely to stop killing humans anytime soon, finds a study by University ...
Medicine & Health / HIV & AIDS
Sep 16, 2010 |
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Genome analysis of marine microbe reveals a metabolic minimalist
Flightless birds, blind cave shrimp, and other oddities suggest a "use it or lose it" tendency in evolution. In the microbial world, an unusual marine microorganism appears to have ditched several major metabolic pathways, ...
Feb 21, 2010 |
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Chinese pigs 'direct descendants' of first domesticated breeds
Modern-day Chinese pigs are directly descended from ancient pigs which were the first to be domesticated in the region 10,000 years ago, a new archaeological and genetic study has revealed.
Apr 19, 2010 |
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Genetic analysis reveals history, evolution of an ancient delicacy -- morels
Dinosaurs squashed them with impunity. Thousands of species that lacked culinary appreciation have turned up their noses at them. And a study based on advanced DNA analysis has shown that this shameful indifference ...
Mar 03, 2011 |
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Genetic testing
Genetic testing allows the genetic diagnosis of vulnerabilities to inherit diseases, and can also be used to determine a person's ancestry. Normally, every person carries two copies of every gene, one inherited from their mother, one inherited from their father. The human genome is believed to contain around 20,000 - 25,000 genes. In addition to studying chromosomes to the level of individual genes, genetic testing in a broader sense includes biochemical tests for the possible presence of genetic diseases, or mutant forms of genes associated with increased risk of developing genetic disorders. Genetic testing identifies changes in chromosomes, genes, or proteins. Most of the time, testing is used to find changes that are associated with inherited disorders. The results of a genetic test can confirm or rule out a suspected genetic condition or help determine a person's chance of developing or passing on a genetic disorder. Several hundred genetic tests are currently in use, and more are being developed.
Since genetic testing may open up ethical or psychological problems, genetic testing is often accompanied by genetic counseling.
For more information about Genetic testing, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
