Quote (carteblanche @ Jun 29 2013 08:25pm)
friend just brought up something. for the most part, only white people have different hair colours, and the rest of the world is black hair with a few exceptions (eg: albinos and maybe others). my mom is full korean (black hair) and dad is german (blonde hair). when i was a small child, i had blonde hair. then over the years it darkened to the dark brown it is today. but i have never met another half-asian who had blonde hair. any ideas on why my hair was blonde? i kinda doubt koreans have a recessive gene for that when they're all black for generations.
Ah the topic of genetics...always fascinates me.
There are many reasons for this.
First of all, the sex-linked allele issue could have crossed over and you instead have your father's hair genetics instead of your mothers.
Secondly, there most certainly are recessive genes present in Koreans, just as there are any other people who have had some kind of mixed breeding in the past, even if its hundreds of years ago.
However, the frequency of such things is so uncommon, mostly due to consistent racial inbreeding, that it only comes out when matched up with a partner who has the dominant gene for the trait and the offspring thus has a greatly increased chance of having xyz trait.
I hope I don't sound like I'm rambling, but two days without any sleep is really catching up to me.