The Argument - Hair

Hair color is often described as the one thing that is completely controlled by genes. But, this is not true. Hair color is determined by the protein melanin, which is not directly made by the genes. Shenk states  that "you did not inherit... your brown hair from your parents' genes. Not directly" (Shenk 21). Provided this information, could hair texture and "shape" also be determined by the "genes multiplied by environment"(20) theory? Meaning, if you were to get your hair thinned out every time you get your hair cut, would it be possible that your hair ended up being naturally thinner? In continuation, would it be possible to change the texture of the hair of someone? For example, if a woman with naturally curly, wavy hair were to get her hair straightened constantly, would she end up with hair similar to a innately straight-haired person? Relate your response to continuity and change and to interdependence in nature.