Q. Colour blindness occurs due to :

Q. Colour blindness occurs due to :

(a) Dominant gene on X-chromosome

(b) Recessive gene on X-chromosome

(c) Recessive gene an autosomes

(d) Dominant gene an autosomes

Solution :

Correct option : B The most common type of red-green color perception defect is due to a mutation on the X-chromosome (i.e. a red-green color blind allele). X-linked red-color blindness is a recessive trait. So, the correct answer is ‘Recessive gene on X-chromosome’.