So each chromosome consists of its own set of chromatids. So now these chromatids are not cystochromatids, meaning they're not identical, as we saw in this case because in meiosis, we have the process of crossing over that takes place. So once again, let's suppose a spindle fiber does not correctly attach to the centromere of one of these chromosomes. And during the process of anaphase, we have the separation. But the separation is unequal. Our distribution of chromosomes is unequal.