Differential interference contrast (DIC) light micrograph of a cell in the anaphase stage (left) of mitosis (nuclear division) and two cells (right) that have just formed after mitosis. Mitosis is the formation of two daughter nuclei from one parent nucleus. At anaphase sister chromatids, which are made of DNA (deoxyribonucleic acid, purple), are separated to opposite ends of the cell. Cytokinesis (cellular division) then forms two new cells around the divided chromatids. Two identical chromatids make up one chromosome, so each cell retains a copy of the parent cell's genetic information. Giemsa staining.