Biracial... What am I?

In class we put on the board the stereotypes for black people/athletes, and the stereotypes for white people/athletes, but I started thinking, what's the stereotype for multi-racial athletes like myself? My mother is white and my father is black, therefore making me biracial. Should I have my own stereotypes for my race or do I automatically inherit the presumptions towards whites and blacks? It is becoming more common to see interacial relationships so I feel like our society will eventually categorize biracial athletes as well. I have had my own personal experience with racial stereotypes in sports. I played AAU basketball for six years. I was fortunate enough to have my mother support me at most of my games. It was interesting to me because after my games my mother would always have stories for me. Most of the time when people saw me walking out with my mother, they asked me if I was adopted. This would drive my mother crazy, but what was it that made people think I was adopted? Was it the fact that on the court I fullfilled more "black" stereotypes or is it that we just differ so much in our appearence? As a society we always speak in terms of white and black but what are we missing by not acknowledging people as biracial? Personally, I have never self-indentified as black or white. I see myself as both and not just one or the other. As our biracial populations grows, I think it's important that we recognize them as a different race, rather than continuing to simply categorize someone as black or white.