Thanks, patton, you just ruined my day. I'm red-headed. The only one in my family. Must have been a Neanderthal Ice-man :-0
Neanderthal genes.
Also likely to have too many teeth, more muscles, lanky arms, and allergies, ranging from asthma to Crohn's disease. Sinus infections are almost guaranteed.
Oddly enough, ringworms help.