News tagged with epigenetic modifications
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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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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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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New insight into why poor diet during pregnancy negatively affects offspring's health
Poor diet during pregnancy increases offspring's vulnerability to the effects of aging, new research has shown for the first time.
Medicine & Health / Medical research
Mar 07, 2011 |
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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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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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