Which has a greater effect on a person -- heredity or environment?

I can make an argument for both sides of this. I truly think environment would win the argument, but heredity is still a good runner up. A child growing up in the streets of a ghetto or a dangerous neighborhood will more than likely see certain behaviors, like joining a gang or selling drugs, as a way of life and follow in the footsteps of his or her examples. The same goes for prominent families with lots of money and kids in private school. Usually you see children from those families in college or with some high dollar career driving around in a luxury car. There are exceptions to both examples, but more times than none, they prove true. Those examples are extreme ends of the spectrum and also a comparison to wealth and status. You can also see clearly defined examples from people raised in the south versus the north, a farm versus a big city, or a trailer versus a mansion. Southerners are typically described as hospitable or backwards and northerners are businesslike and standoffish. Farm envoronments typically instill the value of hardwork for a days pay and time not being a priority where as city environment is depicted as hustle and bustle. Environments are where most stereotypes come from and that illustrates how the public places more emphasis on the effects of an environment instead of heredity. Very seldom do you see heredity formed into a stereotype, but it still has an effect on a people and how they define themselves.