So when our separation takes place, we have an equal separation of chromosomes to both sides of the cells. So these chromatids will end up on that side, and these chromatids will end up on the other side. Now, in the case of nondisjunction, during anaphase of mitosis, what can happen is a spindle fiber might incorrectly attach itself or not attach itself at all to the centromere portion of our chromosome, or the centromere might not actually divide correctly, and this can lead to the process of nondisjunction. So in this case, we basically have our mitotic spindle fiber not binding to this side of chromosome number one. And what happens is, when anaphase takes place and when we have the separation, this entire chromosome that consists of two individual cystochromatids will end up on the left side of the cell, while this side will consist of only one two cystochromatids, as shown. So when we have telephase and cytokinesis take place and we produce our two daughter cells, one of these daughter cells, we will have an extra chromatid, while the other one will have one less chromatid than normal.