Nuclear envelope reassembly and cytokinesis requires the action of phosphoprotein phosphatases that reverse the effects of Cdks. The spindle begins to break down. The chromatin begins to uncoil and disperse. Mitosis has ended. In animal cells, cytokinesis occurs by formation of a cleavage furrow that begins as a shallow groove in the cell surface, near the position of the old metaphase plate.
Animal cells have a pair of centrioles composed of microtubules.
These centrioles are located near the nucleus and they duplicate prior to chromosome replication. Following duplication, the pairs of centrioles separate and move to opposite sides of the nucleus. Each daughter cell gets a pair.