This figure is a schematic diagram showing the process of binary fission. The bacteria cell is represented as a blue oval surrounded by a blue plasma membrane and a brown cell wall. The chromosomal DNA is represented as a purple squiggle inside the bacterial cell. The process begins with duplication of the chromosomes, represented by an increase in the amount of purple. This DNA is then separated, represented by the presence of two purple squiggles. During this process the cell grows, represented by elongation of the oval. The cell divides giving two cells that are identical to the first image.