One of these stages, the first stage is known as interface. And this is what we focus on. In the previous lecture, we said that interface involves the synthesis of proteins the production of organ nouns and the replication of DNA that are used in the second stage of the cell cycle of the animal cell known as the M stage. So the second stage is known as the M stage or the mitotic stage. Now, the mitotonic stage consists of two processes. We have mitosis as well as cytokinesis.