| A prokaryotic cell divides by a process called binary fission. In this process the single DNA molecule, which consitiutes the chromosome of the cell, replicates in a circle. When two complete chromosomes have been formed the cell synthesizes new cell membrane and new cell wall at the replication point of the DNA molecule. As more and more material is laid down, the replication points are pushed further and further apart, separating the two DNA molecules. Eventually the cell forms a new wall between the two chromosomes and the original cell divides into two new cells. |
