So let's begin with mitosis. Now, mitosis actually consists of four individual phases. We have ProPhase, metaphase, anaphase, and telephase. And we also have the process of cytokinesis that actually divides the cell membrane and the cytoplasm of our cell. Now, during the process of s phase of interphase, which takes place right before mitosis, we actually replicate each one of our chromosomes. So let's suppose we begin with a cell that consists of one, two, three chromosomes.