Colour Blindness

Colour cheatness is a very well known deficiency that affects near 8% of the population worldwide (Fluck 2006). People who are colourize blind are non technically blind, they wear a decreased ability to identify colours and in the most extreme cases, not able to see colours at all. The technical term for being colour blind is achromatopsia which path the inability to see any colours at all. However, most people are just now colour deficient and not fully color blind therefore they can be classified as monochromatic, which means the ability to see one colour, or dichromatic, the ability to see two colours.Colour blindness is a congenital and permanent mutation of the X chromosome, which is passed on to an offspring by the mother. The most typical case of this deficiency originates from a fault in the development of sets of retinal cones that perceive colour in strike and transmit that in take a crapation to the optic nerve. Men are more likely to give way a form of colour bl indness due to the fact that the only have a single X chromosome compared to women who have two. For a woman to become colour blind both of her X chromosomes must be mutated compared to only one for a man.At first glance one would think that being colour blind would have no evolutionary advantages at all, however, that is not the case. US Military studies have shown that soldiers who are colour blind are much better at distinguishing camouflage compared to soldiers without the deficiency (Boring 1945). Even with this skill, most people would enumerate being colour blind to be a disadvantage on everyday life. Boring, Edwin G. (ed. ) Psychology for the build up Services Washington The National Research Council The Infantry Journal, 1945. http//www. straightdope. com/columns/read/3037/is-colorblindness-an-evolutionary-advantage