Why Men are Far More Likely to be Colorblind Than Women?

Males have an X and a Y Chromosome, a female on the other hand has two X chromosomes. Color Blindness is an X linked trait, which makes it seen that women are far more likely to be colorblind, but statistically men are far more likely to be colorblind than women. Why is this the case?

Like I mentioned above color blindness is an X linked trait, but another thing about color blindness is the fact that it is a recessive gene, which means if a woman was to be color blind she must inherit this gene from both her mother and father. Women also can pass down the gene to her children. Men as I stated above statistically are far more likely to be colorblind, this is because they don’t have an extra X chromosome to cancel out the gene, which in turn means that if they inherit the color blind gene they most definitely will be color blind.

Hence, because females have X chromosomes, the only way for a woman to be colorblind is if both her parents have the colorblind gene. But because men don’t have an extra X chromosome if they inherit the gene they most definitely will colorblind.


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