Now, the final method we're going to focus on briefly is known as transfection with calcium phosphate. And once again, transfection means the injection of that DNA molecule without actually using any type of viral agent. Now, what we do is we basically create a solution of calcium chloride DNA. So we have a solution in that solution, we have calcium chloride and we have a DNA molecule. And then we mix it with a special solution that contains phosphate ions. And once we mix these two solutions, that calcium phosphate will essentially form a precipitate with that DNA molecule.