So an X and X and an X. Likewise, if we take this sperm cell and combine it with the normal XL, we're going to have an arrangement of XYY. And finally, if either one of these two sperm cells for or combines with a normal xcel, we're going to have an EXO condition, just like we had in this particular case. And once again, and I have to emphasize this, Meiosis, one or two can experience nondisjunction. So we have two places where nondisjunction can. Take place in Meiosis.