Until now, cells dividing by mitosis were thought to grow round and then split into two identical, spherical daughter cells. Isomorphic cells usually divide into asymmetrical daughter cells that are meant for different layers of tissue. Both changes in cell shape and diversity among cells affect morphogenesis, or the development of tissues and organs. Mitotic rounding makes sure that genetic material is evenly distributed and that the daughter cells are the same size. Because asymmetric cell division can cause cells to behave in ways cause them to metastasize, it change how we understand the division of cancerous cells and the spread of cancer, which could lead to next-gen treatments.