According to this (and contrary to the article?), X-inactivation is randomized between cells, so women carriers of the color blindness mutation have half the nu

According to this (and contrary to the article?), X-inactivation is randomized between cells, so women carriers of the color blindness mutation have half the number of correctly functioning cone cells. http://biology.stackexchange.com/questions/41447/colorblindness-in-females-and-random-x-chromosome-inactivation http://biology.stackexchange.com/questions/41447/colorblindn... This is apparently sufficient for basically normal color vision.