Epigenetics and Original Sin

We tend to think of genetics as set in stone.  Harmful behaviors like smoking or overeating might give us cancer or heart disease, it won't change our DNA.  Our bad behavior will hurt us, but it won't harm our children or grandchildren.  Any change in DNA takes generations.  It's  a comforting thought, and it was the scientific consensus until last year. 

Along comes epigenetics.   Though scientists have know about epigenetic markers since the seventies, recent research suggests that epigenetics maybe as important as DNA. Scientists have discovered that chemical markers that act as switches to turn on certain genes and turn off others are directly affected by our behavior. Using the analogy of a computer, DNA is the hardware, and epigenetic markers are the software.  And we can hack the software. We have long known that our bad behavior can affect our life span, but it seems that our bad behavior can affect our grandchildren through epigenetic mechanisms.

When I read the Time article on epigenetics I immediately thought of the Doctrine of Original Sin.  Is it possible that epigenetics can cause the "sins of the fathers to be visited on the son." Chesterton stated that Original Sin was the only doctrine that was empirically verifiable. Epigenetics shows that the actions of our parents and grandparents are literally stored as chemical information and give us a propensity toward certain disease and possibly behaviors. Maybe science is in agreement with the master of Paradox. 

Can epigenetics enhance our understanding of humanities fallen state and propensity to sin or is this too much speculation?  How do we read the book of nature and the book of scripture together?