Cytokinesis begins during late mitosis, typically starting in anaphase and continuing through telophase, so it marks the final partitioning of the cytoplasm as the cell completes M-phase and transitions into interphase. In animal cells, a contractile actin-mmyosin ring forms a cleavage furrow that ingresses to split the cell, with membrane addition occurring simultaneously. In plant cells, cytokinesis proceeds differently, with vesicle-derived membranes forming a cell plate that divides the cytoplasm and establishes two daughter cells. Overall, cytokinesis is considered to initiate in anaphase and conclude by the end of telophase, right as or just after chromosomal segregation completes.