And so what happens is because nondisjunction does not take place, they segregate correctly and so eventually they will form this normal cell number one and normal sperm cell number two, where each and every one of them will have the X chromosome. On the other hand, because nondisjunction we're assuming nondisjunction takes place within this cell once again this spindle fiber is not able to connect directly with this cystochromatid and so both of these cystochromatids are connected to this spinal fiber and they are pulled to that side during anaphase II of meiosis. And so what we end up forming is these two abnormal sperm cells. In sperm cell four we lack any sex chromosome and in sperm cell three we basically have two identical Y chromosomes. Now, if we take a normal Xcel that contains a single X chromosome, and that normal Xcel combines with this abnormal sperm cell number four, then what happens is the Zygo that is formed will only have a single sex chromosome, the X chromosome, because there is no Y chromosome within this particular sperm cell. And this is what we mean by the Xokaryotype, also known as Turner's Syndrome.