Now the next question is, once they actually form that recombinant DNA molecule, how do you amplify your results? How do you produce many copies of that same recombinant DNA molecule? Because if you want to conduct many different types of experiments, you need many different copies of that same recombinant DNA molecule. Well, one way to do it is by using plasmids. So remember, in any DNA molecule or in any bacterial cell, on top of having that DNA, of that bacterial cell, the bacterial cell also has these smaller DNA, smaller circular DNA known as plasmids. So let's suppose we take a bacterial cell and we isolate, we take out that plasma.