Answer: False
Explanation: A person with XXX aneuploidy would have only one Barr Body. The presence of a Barr Body is a result of X-chromosome inactivation in females, which is a process that randomly silences one of the two X chromosomes in each cell to prevent overexpression of X-linked genes. In individuals with three X chromosomes (XXX), two X chromosomes are inactivated, while the third remains active. Therefore, they would have one Barr Body in each cell.