Well, they don’t procreate like us to say. Since they’re cells, they prepare for a bit and just split into two bacteria, copies of the original. Cells build up resources and copy their DNA (so each of the two has a copy of it) and then split apart. There is a bit of evidence of bacteria exchanging DNA between each other, but most changes in the DNA code would come from errors in copying process, or mutations.
Well, they don’t procreate like us to say. Since they’re cells, they prepare for a bit and just split into two bacteria, copies of the original. Cells build up resources and copy their DNA (so each of the two has a copy of it) and then split apart. There is a bit of evidence of bacteria exchanging DNA between each other, but most changes in the DNA code would come from errors in copying process, or mutations.