I have seen black people look white.

And vise versa, but really this one movie I watched a black girl's fingers, I think Slumdog Millionaire, and for some reason they looked like an obese white lady.  See an arm and not be able to tell if it's a redhead who likes to go fishing.  Red is the recessive trait.  Or a fro blonde.  I don't know why people with red-hair are overly red.