So basically, each one of these chromosomes are connected by a centromere or the region where they connect is called the centromere. And what also happens in ProPhase is the centromeres of the chromosomes develop these attachment points known as kinetochores. So this concludes ProPhase. Now let's move on to the second phase, known as metaphase. So in metaphase, these two centrioles have now moved to opposite ends, to opposite poles of the cell. And now what happens is these spindle fibers basically radiate outward and attach onto the kinetic core of the centromere of our chromosome pairs.