News tagged with dna mutations
New genetic study helps to solve Darwin's mystery about the ancient evolution of flowering plants
(PhysOrg.com) -- The evolution and diversification of the more than 300,000 living species of flowering plants may have been "jump started" much earlier than previously calculated, a new study indicates. According ...
Apr 10, 2011 |
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Slower evolving bacteria win in the end
(PhysOrg.com) -- Scientists in the US have found bacteria that evolve slowly are more likely to survive in the long term than those evolving more quickly.
Mar 18, 2011 |
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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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New research indicates that DNA sequence itself influences mutation rate
Genetic variation due to DNA mutation is a driving force of adaptation and evolution, as well as a contributing factor to disease. However, the mechanisms governing DNA mutation rate are not well understood. In a report ...
May 24, 2010 |
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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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Sequencing genome of entire family reveals parents give kids fewer gene mutations than was thought
Researchers at the University of Utah and other institutions have sequenced for the first time the entire genome of a family, enabling them to accurately estimate the average rate at which parents pass genetic mutations to ...
Mar 10, 2010 |
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Viral phenomenon: Ancient microbe invaded human DNA
Humans carry in their genome the relics of an animal virus that infected their forerunners at least 40 million years ago, according to research published Wednesday by the British science journal Nature.
Jan 06, 2010 |
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Lung cancer and melanoma laid bare: First comprehensive analysis of two cancer genomes
Research teams led by the Wellcome Trust Sanger Institute announce the first comprehensive analyses of cancer genomes. All cancers are caused by mutations in the DNA of cancer cells which are acquired during a person's lifetime. ...
Dec 16, 2009 |
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Ancient penguin DNA raises doubts about accuracy of genetic dating techniques
Penguins that died 44,000 years ago in Antarctica have provided extraordinary frozen DNA samples that challenge the accuracy of traditional genetic aging measurements, and suggest those approaches have been ...
Nov 10, 2009 |
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Two more genetic risk factors for Alzheimer's disease found
An international team of scientists has identified two more genetic risk factors for Alzheimer's disease. The findings are reported in the online edition of the journal Nature Genetics.
Sep 06, 2009 |
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'Sloppier copier' surprisingly efficient
The "sloppier copier" discovered by USC biologists is also the best sixth man in the DNA repair game, an article in the journal Nature shows.
Jul 15, 2009 |
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Nine new X chromosome genes associated with learning disabilities
(PhysOrg.com) -- A collaboration between more than 70 researchers across the globe has uncovered nine new genes on the X chromosome that, when knocked-out, lead to learning disabilities. The international ...
Apr 19, 2009 |
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'Personalized' genome sequencing reveals coding error in gene for inherited pancreatic cancer
Scientists at the Sol Goldman Pancreatic Cancer Research Center at the Johns Hopkins Kimmel Cancer Center have used "personalized genome" sequencing on an individual with a hereditary form of pancreatic cancer to locate a ...
Mar 05, 2009 |
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Humans are reason for why domestic animals have strange and varied coat colors
(Physorg.com) -- Humans have actively changed the coats of domestic animals by cherry-picking rare genetic mutations, causing variations such as different colours, bands and spots, according to a new study. ...
Biology /
Jan 16, 2009 |
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Research uncovers new exception to decades-old rule about RNA splicing
There are always exceptions to a rule, even one that has prevailed for more than three decades, as demonstrated by a Cold Spring Harbor Laboratory (CSHL) study on RNA splicing, a cellular editing process. The rule-flaunting ...
May 17, 2012 |
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