|genetics of green eyes and heterochromia
||[Feb. 1st, 2008|01:23 pm]
is anyone familiar with the genetics of heterochromia?|
here's my situation: my birth mom has brown eyes, and so do 2 of her 3 brothers. the 3rd brother has blue eyes. their dad had brown eyes, their mom green [hazel]. so since the 3rd brother has blue eyes, my grandpa must've been Bb, grandma Gb [am i correct with Gb? you almost never learn about the genetics of green eyes]
i know that green eyes are recessive to brown but dominant to blue so it would be possible for my birth mom and her 2 brothers to be BG, right? they have brown eyes but carry the green gene.
but here's the thing...my birth dad has blue eyes and i have one green eye one blue eye. is it possible my one green eye was passed from my maternal grandma? [i don't know anything about my dad's side of the family and their eye colors]. the more i think about it the more that doesn't make sense...if my birth mom is BG and my birth dad is bb then i would've been Gb, and since green is dominant to blue i'd have green eyes which i don't. so is it possible my grandma is gb, thus my birth mom is Bg and I am gb as well...? with my one green eye one blue eye. i know that's probably stupid but i don't know anything about heterochromia and am interested to find out how it works.
thanks if you read all this!