Uncommon Descent Serving The Intelligent Design Community

Epigenetics in Real Time: Samie Jaffrey Goes There and Evolution is Getting Trashed


You won’t believe what Samie Jaffrey’s group at Cornell is confirming and elucidating about epigenetics, the fantastic adaptation capability cells have to adjust to environmental shifts. Epigenetics is a broad term for a range of adaptation capabilities achieved via the regulation of gene expression. Gene expression can be regulated, for example, by attaching small chemical markers such as methyl groups, like bar codes, to DNA or to the histone proteins about which the DNA is wrapped. Such chemical modifications have been known to be used also on the DNA copy—the messenger RNA—used to synthesize proteins. What Jaffrey’s group has found is that mRNA methylation is ubiquitous. Something like 20% of the transitory mRNA molecules are methylated in human cells. This truly is epigenetics in real time as the cell must be detecting the need and transferring the methyl groups to the right mRNA location at astonishing rates. It is evolution’s reductio ad absurdum on steroids.  Read more


Leave a Reply