News tagged with dna modification
DNA repair protein caught in act of molecular theft
Scientists have observed, for the first time, an intermediate stage in the chemical process that repairs DNA methylation damage and regulates many important biological functions that impact health conditions ...
Nov 10, 2010 |
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Gene switch sites found mainly on 'shores,' not just 'islands' of the human genome
Scientists who study how human chemistry can permanently turn off genes have typically focused on small islands of DNA believed to contain most of the chemical alterations involved in those switches. But after an epic tour ...
Jan 18, 2009 |
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Rethinking the Genetic Theory of Inheritance
Scientists at the Centre for Addiction and Mental Health (CAMH) have detected evidence that DNA may not be the only carrier of heritable information; a secondary molecular mechanism called epigenetics may also account for ...
Jan 18, 2009 |
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New technique reveals unseen information in DNA code
Imagine reading an entire book, but then realizing that your glasses did not allow you to distinguish "g" from "q." What details did you miss? Geneticists faced a similar problem with the recent discovery ...
May 17, 2012 |
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Ancient DNA holds clues to climate change adaptation
(PhysOrg.com) -- Thirty-thousand-year-old bison bones discovered in permafrost at a Canadian goldmine are helping scientists unravel the mystery about how animals adapt to rapid environmental change.
Jan 31, 2012 |
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Scientists discover how 'companion' cells to sperm protect them from genetic damage
In plant pollen grains, sperm cells, which carry the genetic material to be passed on to progeny, are cocooned within larger "companion" cells that are called pollen vegetative cells. These companions provide sperm with ...
Biology /
Feb 05, 2009 |
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In lung cancer, silencing one crucial gene disrupts normal functioning of genome
While examining patterns of DNA modification in lung cancer, a team of international researchers has discovered what they say is a surprising new mechanism. They say that "silencing" of a single gene in lung cancer led to ...
Dec 31, 2008 |
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Select agents should be defined by DNA sequence in today's era of synthetic biology
A DNA sequence-based system to better define when a pathogen or toxin is subject to Select Agent regulations could be developed, says a new report from the National Research Council, which adds that this could be coupled ...
Aug 03, 2010 |
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