Colour blindness results from
Absence of rods
Absence of cones
Absence of eyelids
Inverted retina
If a colour blind female marries a man whose mother was also colour blind, what are the chances of her progeny having colour blindness ?
A colour blind son will born when
Sicklecell anaemia is
A woman with normal vision, but whose father was colour blind, marries a colour blind man. Suppose that the fourth child of this couple was a boy. Thus boy
Recessive characters are expressed