Maria Williams

17. Only 2 of the world’s population has green eyes. It is the rarest eye color in the world, second only to violet or red eyes (caused by albinism) and heterochromia (two different eye colors), the latter of which may be congenital or caused by health conditions. Trendy hair color strawberry blonde However, this does not explain why two parents with blue eyes can have a child with brown eyes. It also does not explain how grey or hazel eyes arise. This is where modifier genes, other genes associated with eye color and mutations all come into picture, as they can all lead to variability in eye