What gender is colour blindness most common in?

Colour blindness:

1. Colour blindness is a type X-linked recessive genetic disorder, which results in decreased ability to discriminate between colours.
2. There are three types of colour blindness, they are: Red-green colour blindness, blue-yellow colour blindness and complete colour blindness or monochromacy.
3. Males are more prone to this disease as they inherit only one copy of the X chromosome.
4. Females can be affected by this disease only if they receive a pair of defective genes.
5. In order for a female to be colour blind, her mother has to be a carrier of the defective gene and father has to be colour blind.