And normally, these two will move to that side, these other cystochromatids will move to the other side. And in humans, we have 46 chromosomes moving this way, 46 chromosomes moving the other way. And so during anaphase, we should have in this particular picture, we should see two chromosomes moving this way and two chromosomes moving the other way. But if nondisjunction takes place, what that means is one of these fibers actually fails to form a proper connection with one of the cystochromatids. And so let's say that this connection formed, this connection formed, and this connection formed. This connection did not actually form.