A) absence of rods
B) absence of cones
C) absence of eyelids
D) inverted retina
Correct Answer: B
Solution :
Colour blindness results from absence of cones. Cones contain iodopsin, which is visual violet and made up of photopsin and retinal. The 3 types of cones are erythrolobe, cyanolobe and chlorolabe. However, if all the cone types are simultaneously stimulated by equal amounts of coloured light than sensation for white light is perceived.
You need to login to perform this action.
You will be redirected in
3 sec
