Wednesday, October 3, 2012

#Study: #Pregnant #rats pass down effects of #dioxin exposure — to #great-grandchildren

Although the pregnant rats' DNA sequences themselves were not changed, the biochemical exposure affected how genes were turned on or off, and that modification — the epigenetic action — was inherited along with the genetic sequences, said Michael Skinner, a professor of environmental epigenetics and reproductive biology at WSU.

The field of epigenetics refines — and complicates — the standard way of thinking about inheritance and genetics, which relies heavily on the concept of mutations to explain disease processes.

continue learning

No comments: