And inside of somatic cell, let's say we have chromosome one and chromosome two, and we replicate them. So these are the identical cystochromatis. So these two are identical and these two are identical. Now, normally, what happens under normal conditions is these mitotic spindle upper analysis form. They extend these fibers, and these fibers attach themselves onto these sections on each one of these cystochromatids. And so during metaphase of mitosis, we have these extensions and these connections that form.