And let's begin with ProPhase one of meiosis. Now, ProPhase one of meiosis is somewhat similar to ProPhase of mitosis in that in ProPhase one of meiosis, we have the two centrioles that begin to move to opposite ends. And as they begin to move to opposite ends, they begin to synthesize our mitotonic spindle apparatus, and they begin to synthesize the spindle fibers, which begin to grow and move into the nucleus of our cell. Now, at the same exact time, the chromatin condenses into the chromosomes and the nuclear membrane, as well as our nucleolus, begins to disappear. And that's exactly what allows our spindle fibers to make its way into the nucleus area of our cell. Now, the major difference between ProPhase one of meiosis and ProPhase of mitosis is the following.