So for any given protein that is of equal size, because their rate will be the same, they will end up at the same exact location along our gel. So we have the large proteins, intermediate and the small proteins. Now, the final question is, what is the difference between gel electrophoresis and gel filtration chromatography? Because both of these techniques do the same exact thing. They basically separate the proteins based on size. But what's the major difference between these two methods?