Answer:
Mitosis is required to maintain the chromosome number of parent cells in daughter cells. Cytokinesis is not precise since most of the vital organelles can divide to form new organelles.
Step-by-step explanation:
Orderly events of mitosis ensure that the daughter cells obtain the same number of the chromosome as it was present in the parent cells. A daughter cell with fewer or more chromosomes than the parent cell, abnormal chromosome number would affect its survival. Mostly, the cells with abnormal chromosome numbers do not survive or cause genetic disorders.
On the other hand, cell organelles such as mitochondria and chloroplasts are semi-autonomous. These organelles can divide to form more of their types if required. The presence of genetic material in the nucleus poses the need for precise events of mitosis to maintain the chromosome number of species in each of the daughter cells.