News tagged with dna changes
Tibetan adaptation to high altitude occurred in less than 3,000 years
(PhysOrg.com) -- A comparison of the genomes of 50 Tibetans and 40 Han Chinese shows that ethnic Tibetans split off from the Han less than 3,000 years ago and since then rapidly evolved a unique ability to thrive at high ...
Jul 01, 2010 |
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Researchers develop safer way to make induced pluripotent stem cells
Researchers at Johns Hopkins have found a better way to create induced pluripotent stem (iPS) cells -- adult cells reprogrammed with the properties of embryonic stem cells -- from a small blood sample. This new method, described ...
Feb 01, 2011 |
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Good parents are predictable -- at least when it comes to corn
In order to breed new varieties of corn with a higher yield faster than ever before, researchers at the University of Hohenheim in Stuttgart, Germany, and other institutions are relying on a trick: early selection of the ...
Jan 15, 2012 |
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What, or who, killed the last mammoths?
The last known population of woolly mammoths, roaming a remote Arctic island long after humans invented writing, were wiped out quickly, reports a study released Wednesday.
Mar 31, 2010 |
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Researchers develop process for 'surgical' genetic changes
Research led by scientists at Iowa State University's Plant Sciences Institute has resulted in a process that will make genetic changes in plant genes much more efficient, practical and safe.
Jul 20, 2009 |
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Fungi can change quickly, pass along infectious ability
Fungi have significant potential for "horizontal" gene transfer, a new study has shown, similar to the mechanisms that allow bacteria to evolve so quickly, become resistant to antibiotics and cause other serious ...
Mar 17, 2010 |
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Three periods of innovation in gene regulation occurred during the evolution of vertebrate animals: study
Over the past 530 million years, the vertebrate lineage branched out from a primitive jawless fish wriggling through Cambrian seas to encompass all the diverse forms of fish, birds, reptiles, amphibians, and mammals. Now ...
Aug 18, 2011 |
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Study provides new insights into an ancient mechanism of mammalian evolution
A team of geneticists and computational biologists in the UK today reveal how an ancient mechanism is involved in gene control and continues to drive genome evolution. The new study is published in the journal ...
Jan 12, 2012 |
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DNA of ancient lost barley could help modern crops cope with water stress
(PhysOrg.com) -- Researchers at the University of Warwick have recovered significant DNA information from a lost form of ancient barley that triumphed for over 3000 years seeing off: 5 changes in civilisation, ...
Jul 21, 2009 |
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Fighting cancers by tagging their triggers
Imagine the day a machine can draw your blood, screen it for genetic mutations and chemical variations that can cause cancer, and pop out a drug tailor-made for your DNA.
Nanotechnology / Bio & Medicine
Sep 30, 2010 |
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Kangaroo evolution linked to climatic change
(PhysOrg.com) -- The evolution of kangaroos is intricately tied to Australia's changing climate, according to new research.
Aug 04, 2010 |
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Scientists find 5 new Parkinson's genes
Scientists have identified five new genes linked to Parkinson's disease in a large genetic analysis of the illness, according to a new study. After reviewing nearly 8 million possible genetic mutations, researchers pinpointed ...
Medicine & Health / Diseases, Conditions, Syndromes
Feb 02, 2011 |
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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 |
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Jumping gene enabled key step in corn domestication
Corn split off from its closest relative teosinte, a wild Mexican grass, about 10,000 years ago thanks to the breeding efforts of early Mexican farmers. Today it's hard to tell that the two plants were ever close kin: Corn ...
Sep 25, 2011 |
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Turtles' mating habits protect against effects of climate change
The mating habits of marine turtle may help to protect them against the effects of climate change, according to new research led by the University of Exeter. Published today in the journal Proceedings of th ...
Jan 24, 2012 |
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