Here's a breakdown of how it works:
1. DNA Replication: The bacterium's single circular chromosome replicates, creating two identical copies.
2. Cell Growth: The cell increases in size, and the two copies of DNA move to opposite ends of the cell.
3. Cell Wall Formation: A new cell wall forms between the two DNA copies, dividing the cell into two identical daughter cells.
This process allows bacteria to reproduce rapidly, which is why bacterial infections can spread so quickly.