Eli5 : Why do some genes (like skin color) mix and shade upon inheritance while some don’t (like eye color) ?

Question

Eli5 : Why do some genes (like skin color) mix and shade upon inheritance while some don’t (like eye color) ?

In: 455

Answer 1

So I have really blue eyes and my wife has a green/yellow/brown mix that we call hazel. Both our kids have her mix with my blue replacing her green. They look like marbles.