Colour Blindness


- Colour blindness, also known as colour vision deficiency, is a genetic condition characterised by the inability to perceive certain colours accurately.

- Colour blindness is an X-linked recessive genetic disorder, most commonly affecting males.

1. Inheritance:

- Colour blindness is usually inherited as an X-linked recessive trait.

- The genes responsible for colour vision are located on the X chromosome.

- Males are more commonly affected than females because they have only one X chromosome (XY).

 2. Inheritance Pattern:

- Males with the recessive allele on their single X chromosome will exhibit colour blindness.

- Females can be carriers of the trait if they have one normal X chromosome and one with the recessive allele.

- A female needs two copies of the recessive allele (homozygous) to be colour blind.