Here are my questions (I have several)
1) Are the fast twitch muscle fibers dominant or recessive as opposed to the slow?
2) Are people of mixed race/greatest genetic diversity in their background, tend to be the best athletes and the healthiest in general?
Allow me to clarify the first point: Obviously no one in the world is either 100% fast twitch or 100% slow twitch. Let's put this another way: (and I'm just using random numbers here that are probably unrealistic, bear with me). Let's say someone who is 80% fast twitch and 20% slow twitch has a baby with someone who is precisely the other way. Would the child develop more of the fast twitch or more of the slow twitch?