In the Sims 2 Nopke created a mod called "More Realistic Genetics" http://modthesims.info/d/597849/more-realistic-genetics-updated-24-jul-17.html
I was wondering if it were possible to recreate or make a similar mod to this to make genetics realistic. I hate the fact in the Sims 4 that unnatural hair is genetic (but can be fixed in the Cas.) and maybe in this mod you could make it so unnatural hair isn't genetic. If anyone wants to add more to this idea I'd love you hear your ideas.