Events of Anaphase:

When a kinetochore spindle fiber connects with a kinetochore of the chromosome, it starts to pull towards the originating centrosomes. The pulling force divides the chromosome’s sister chromatids allowing them to separate. These sister chromatids are now sister chromosomes and they are pulled apart by the shortening of the kinetochore spindle fibers towards the respective centrosomes. Next, the other spindle fibers (without kinetochore) elongate, pushing the centrosomes and the set of chromosomes apart to the opposite end of the cells. At the end of Anaphase, the cell has succeeded in separating identical copies of the genetic material into two distinct groups.