This is due to how parents pass down a chromosome associated with the male sex. Males get an x chromosome from their mother and a y chromosome from their father, while females get an x chromosome from each parent Males only need to have one abnormal gene on their one x chromosome to be color blind, while women need to have the abnormal gene on both of their x chromosomes. It is a common misconception that color blindness always equals monochromacy Males have only 1 x chromosome from their mother Females have 2 x chromosomes, 1 from the mother and 1 from the father.
OPEN
