I was wondering how the genetics work on the Sims 4. I have played through a few generations of the Sims 4 now and I am having a bit of an issue with hair colour. If a couple have a daughter she will always have the same hair colour as the mother and if they have a son he will have the same hair colour as the father. Is this how it actually works or is it just how it has turned out in my game so far? It kind of makes it less fun.