a chromosomal disorder wherein a female has four X chromosomes instead of the typical couple. Impacted females usually have small physical abnormalities and cognitive retardation; IQ's of impacted people have spanned from 30 to 80 in analyses.
a chromosomal disorder wherein a female has four X chromosomes instead of the typical couple. Impacted females usually have small physical abnormalities and cognitive retardation; IQ's of impacted people have spanned from 30 to 80 in analyses.