BioSmart Fact File 258.4 orbitbiotech orbitbiosmart Gene silencing instructions acquired through molecular memory tags on chromatin Scientists at Indiana University have unlocked one of the mysteries of modern genetics: how acquired traits can be passed between generations in a process called epigenetic inheritance. The new work finds that cells dont know to silence some genes based on information hardwired into their DNA sequences, but recognize heritable chemical marks that are added to the genes. These chemical tags serve as a form of molecular memory, allowing cells to recognize the genes and remember to silence them again in each new generation.
Posted on: Mon, 28 Apr 2014 11:27:24 +0000
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