I'm making a small text-based game in a world like that of Dragon Age or Harry Potter, and the fun of it is randomly generating NPC's, and changing behavior their behavior accordingly.
Would anyone have a ballpark estimate as to the proportional number of magic-users to others, or how the gene might manifest itself? (Dominant, recessive)
Comparison to an existing universe might be the Dragon Age Universe, or even Harry Potter. Ignoring the bias in both societies that could lead to abnormally high or low amounts of magic users.
The world I am working with will be conducive to larger amounts of magic users with variable levels of talent. The issue is having an unbalanced game world, or a world with too many or too few with magical talent. The distribution of talent among users would likely be similar to a bell curve.
I was thinking of something similar to 1 in 10 to 15 people have magical talent, and making the gene controlling possession of talent, a recessive gene.
Some areas of the world will have selective breeding, others will shun all showing magical talent. I'm concerned with general distribution for how many people out of 100 or 1000 might have magical talent.
I believe multiple genes would change small characteristics. How might I make sure I don't unbalance the world? Eventually I might integrate a combat system and want organized magic users to be strong, but not so much it changes world composition or the dynamics of fewer magic users to many without.