Below is an instruction from Human. Write a response.
    ### Instruction:
    Is 48,XXYY syndrome inherited ?
    ### Response:
    This condition is not inherited; it usually occurs as a random event during the formation of reproductive cells (eggs and sperm). An error in cell division called nondisjunction results in a reproductive cell with an abnormal number of chromosomes. In 48,XXYY syndrome, the extra sex chromosomes almost always come from a sperm cell.
    