Not to mention color blindness, which affects 10% of men to some degree.Eos of the Eons said:Basically though, we do see genes expressed in males that are abnormal because they don't have the second x chromosome to make up for any problems in the other x chromosome. Fragile X.... Haemophilia.... The women become carriers because they don't express the problem.
Remember that next time you wonder how he could possibly think that shirt goes with those pants...