Color blindness is a recessive sex linked human trait. If a colorblind father and a mother with normal color vision have a color blind son, what must be the mothers genotype?

answer; i believe the answer is (polygenic inheritance;

yes

no

blue is scattered more than other colors because it travels as shorter, smaller waves. this is why we see a blue sky most of the time.

yes, because even though a theory has a  lot of evidence to support it, it is not always true