Answer:
Binary fission.
Step-by-step explanation:
Binary fission: It is known as the asexual reproduction, in which a single organism formed two independent organisms, and also defined as duplication of organisms. This starts with the replication process of DNA within the cell. Before binary fission mitochondria must have replicates its DNA.
After that, the DNA is separated into ends (alternate) of the single cell. One cell becomes two with the help of plasma membrane turns the cell apart. Then each cell is capable of all the function with fully functioning DNA molecule, and cell becomes independent organisms.