While color blindness commonly affects many individuals all over the world today, different studies show that roughly 8% of all men and 0.5% of all women are colorblind. Supported by various studies and researches, these figures mean that men are about 20 times more likely than women to encounter such visual condition characterized by color deficiency. This problem, although not life threatening but may pose serious safety concerns if unaddressed, has been traced to hereditary factors particularly the passing on of affected genes from generation to generation. Studies pointed out that color blindness is caused by a sex-linked trait, where the defective gene is passed on through the X chromosome. Since men have (XY) chromosomes compared to women having both (XX) chromosomes, this explains why men are more likely to have it than women.