Prokaryotes contain five different types of DNA polymerase. These are described below. Polymerase I is a DNA repair enzyme from the family A polymerases that has a 5’ to 3’ and 3’ to 5’ activity. Pol ...
DNA methylation refers to the process of adding a methyl group to specific regions of DNA. This process can bring about changes in the activity of DNA without changing the sequence of nucleotides.