Is colorblindness a non disjunction or a mutation

Colorblindness is caused by mutations in the genes.  There are 3 color cones red, green and blue.  when someone is colorblind there is usually a red or green cone missing.

 The most common cause of color blindness is confusion between red and green. It is a genetic mutation. Very few people are totally color blind (ie they see in black and white only) - most seem to have some color vision but get confused between certain colors. Oh, and for some strange genetic reason, far more men are color blind than women. 
 

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