Chromatids are pulled by the spindle fibers to opposite poles. Each set of chromosomes becomes enclosed by a nuclear membrane. Chromosomes de-condense, nucleoli form. Microtubules of spindle disintegrated and spindle disappears. 2 separate cells are now formed and are ready to enter the G1 phase.
Differentiation is how multicellular organisms form specialized cells.
Even though all of the genes may be present, they are not all read. As cells become more specific, they also loose their capacity to divide. The cessation of division in differentiated cells is very important in tumor prevention. The study of the regulation of cell division is therefore very important in understanding the biology of cancer . Do your own Lycos search.