Entire structure formed by nonkinetochore microtubules plus kinetochore microtubules is called the spindle. Anaphase Anaphase is characterized by movement. It begins when paired centromeres of each chromosome move apart. Sister chromatids split apart into separate chromosomes and move towards opposite poles of the cell. At the end of anaphase, the two poles have identical collections of chromosomes.
Daughter nuclei begin to form at the two poles.
Nuclear envelopes form around the chromosomes from fragments of the parent cell's nuclear envelope and portions of the endomembrane system. Chromatin fiber of each chromosome uncoils and the chromosomes become less distinct. Cytokinesis Cytokinesis, the process of cytoplasmic division, begins during telophase of mitosis. The process by which cytokinesis is accomplished differs in animal and plant cells. First, a cleavage furrow forms as a shallow groove in the cell surface near the old metaphase plate.