Colour blindness is a recessive genetic condition carried through on the X chromosome, which leaves a person unable to see the normal spectrum of colours. It affects men more commonly as they only have one X chromosome. Women need to inherit the gene from both parents to be affected; however, women can often be 'silent' carriers.Colour blindness does not affect the vision, it only changes the way a person sees colour. There three types of inherited of colour blindness:

• Monochromacy - this… Continue reading →