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. And by a mechanism that we don't yet quite know, don't yet quite understand, the cell incorporates that complex, including that DNA, into the cell by some type of endocytotic process. Endocytosis, it's simply the process by which we have a receptor mediated process by which the cell invaginates and takes that into the cytoplasm of the cell. So basically, as shown in the following diagram, so we have that double stranded DNA molecule that we want to inject into our cell.