I can't find the article now (it was on SlateStarCodex), but Scott Alexander wrote a great article where he broke down all of the genes that have a tendency to

I can't find the article now (it was on SlateStarCodex), but Scott Alexander wrote a great article where he broke down all of the genes that have a tendency to break either toward a genetic advantage (like high intelligence) or a genetic disadvantage (like cerbral palsy) and how it's always a dice-roll of the genetic expression whether it ends up helping or harming you.