Molecules and atoms are much, much smaller than a bacterial cell. The molecular level basically means that you are talking about things in the size range of most molecules and not any bigger.Of course there are molecules of very different sizes, but the point is that you are looking at something at a scale where you would see molecules and not not larger structures like crystals.olecules and atoms are much, much smaller than a bacterial cell. The molecular level basically means that you are talking about things in the size range of most molecules and not any bigger.
If mismatch repair isn't working, cells will accumulate mutations really quickly because any mistakes in DNA replication aren't being fixed. All those mutations can lead to various types of cancer, including colon cancer, ovarian cancer, stomach cancer, breast cancer, lung cancer... the list goes on and on.
DNA replication is the process by which DNA makes a copy of itself during cell division.1  The first step in DNA replication is to âunzipâ the double helix structure of the DNA molecule. Chunks of DNA, called Okazaki fragments, are then added to the lagging strand also in the 5â to 3â direction. 2  This type of replication is called discontinuous as the Okazaki fragments will need to be joined up later.