A field of study called epigenetics has some interesting possibilities for theology.
A recent New York Times article has a basic explanation. You can find it here.
An article from theologian and philosopher Norman Geisler suggests a connection with epigenetics and inherited sin. You can read this article here.
Another article by Dr. Fuz Rana over at Reasons to Believe can be found here.
While it’s still too early to make definitive statements, the initial data seems to raise interesting parallels to the Biblical teaching of the sins of a father being visited on the son.