Color blindness occurs in about -

The correct answer is Option (4) → 8% of males

Colour blindness is a sex-linked recessive disorder. A defect in the red or green cones of the eye makes the person unable to tell red from green. The genes involved lie on the X chromosome. A male has only one X chromosome, so one faulty gene is enough to make him colour blind. A female needs the faulty gene on both her X chromosomes. This is why the disorder is far more common in males (about 8 per cent) than in females (about 0.4 per cent).

NCERT Extract:
Mendelian Disorders – “… Myotonic dystrophy) (b) Autosomal recessive trait (for example: Sickle-cell anaemia) Colour Blidness : It is a sex-linked recessive disorder due to defect in 73 either red or green cone of eye resulting in failure to discriminate between red and green colour. This defect is due to mutation in certain genes present in the X chromosome. It occurs in about 8 per cent of males and only about 0.4 per cent of females.”