News tagged with modifications
Propensity for longer life span inherited non-genetically over generations, study says
We know that our environment -- what we eat, the toxic compounds we are exposed to -- can positively or negatively impact our life span. But could it also affect the longevity of our descendants, who may live under very different ...
Oct 19, 2011 |
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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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Researchers derive first embryonic stem cells from rats
Researchers at the University of Southern California (USC) have, for the first time in history, derived authentic embryonic stem (ES) cells from rats. This breakthrough finding will enable scientists to create far more effective ...
Biology /
Dec 24, 2008 |
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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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From embryonic stem cells, a sperm replacement and easier path to genetic modification
Researchers reporting in the April 27 issue of the journal Cell have devised a new and improved method for producing genetically modified animals for use in scientific research. The method relies on haploi ...
Apr 26, 2012 |
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Genes may travel from plant to plant to fuel evolution: study
The evolution of plants and animals generally has been thought to occur through the passing of genes from parent to offspring and genetic modifications that happen along the way. But evolutionary biologists ...
Feb 16, 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 elevate little-studied cellular mechanism to potential drug target
For years, science has generally considered the phosphorylation of proteins -- the insertion of a phosphorous group into a protein that turns it on or off -- as perhaps the factor regulating a range of cellular processes ...
Dec 11, 2011 |
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Lessons learned from yeast about human leukemia
The trifecta of biological proof is to take a discovery made in a simple model organism like baker's yeast and track down its analogs or homologs in "higher" creatures right up the complexity scale to people, ...
Dec 05, 2011 |
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Epigenetic changes don't last
Jean-Baptiste Lamarck would have been delighted: geneticists no longer dismiss out of hand his belief that acquired traits can be passed on to offspring. When Darwin published his book on evolution, Lamarck's ...
Sep 20, 2011 |
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Scientists find easier, cheaper way to make a sought-after chemical modification to drugs
Scientists at The Scripps Research Institute have devised a much easier technique for performing a chemical modification used widely in the synthesis of drugs and other products.
Aug 16, 2011 |
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Firm uses genetic modification to coax spider silk from silkworms
(PhysOrg.com) -- In what many in the textile industry have for years been calling the holy grail of materials science, genetic engineers from Kraig Biocraft Laboratories Inc. have succeeded, using Sigma Life ...
Apr 14, 2011 |
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New study solidifies role of DISC1 in risk for schizophrenia and other mental illness
Johns Hopkins researchers report the discovery of a molecular switch that regulates the behavior of a protein that, when altered, is already known to increase human susceptibility to schizophrenia and mood disorders.
Apr 06, 2011 |
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