[js1138]

Enviroment can trigger genetic changes in the information that is already contained in the DNA.

That was the theory of genetics favored by Stalin. Any biologist who disagreed was imprisoned or executed. I wasn't aware that conservatives favored Stalin's scientific theories.

[bondserv]

So you are saying you can't get a tan, or that your blisters never turn to calluses?

These genetic bits of information are turned off until they are triggered by the enviroment i.e. vacations, shoveling tent posts on the ranch without gloves...