Nature and Nurture

I had a thought some time ago that I just remembered about the whole Nature vs. Nurture argument. What if our genetics more or less fix our propensity towards basic animal instincts (fight/flight, feeding, mating, play, etc.) but our experience maps those instincts to real world behaviors?

For example, a child with a propensity to fight in almost every possible scenario could eventually learn to fight his own urge to fight, turning the instinct inwards. As a peaceful adult, he has not changed his instincts at all but has instead mapped the instinct to a suppressive behavior.

This way of thinking about the nature/nurture balance works well for me. I would be very interested in getting feedback from anyone in the Psychobiology / Biopsychology fields.

It took me a long time to get off my butt and actually start consistently blogging. Now that I have it has been a great disappointment that people rarely reply. What good are thoughts in a vacuum?