Binary Fission: Bacterial Reproduction Made Simple

Ever wondered how a tiny cut can become infected so quickly? It's all down to binary fission - the lightning-fast way bacteria multiply. This process is completely different from mitosis or meiosis that happen in your cells.

Prokaryotic cells (like bacteria) have a much simpler structure than your cells. They contain a large circular strand of DNA with all the important genes, plus smaller DNA circles called plasmids that carry non-essential genes. Everything floats freely in the cytoplasm since there's no nucleus.

Before dividing, bacterial cells must grow larger and copy their genetic material. The DNA strands move to opposite sides of the cell, whilst plasmids arrange themselves randomly. A new cell wall then grows down the middle, splitting the cell into two identical copies.

Here's the scary part: some bacteria can divide every 20 minutes! In just 3 hours (6 divisions), one bacterial cell becomes 64 cells. That's why infections can spread so rapidly in your body.

Quick Tip: Bacteria divide fastest in warm, moist conditions with plenty of nutrients - which is exactly what your body provides!