NEET BIOLOGY

Detailed explanation-1: -Cytokinesis begins in anaphase and ends in telophase, reaching completion as the next interphase begins. The first visible change of cytokinesis in an animal cell is the sudden appearance of a pucker, or cleavage furrow, on the cell surface.

Detailed explanation-2: -During cellular cleavage, the contractile ring tightens around the cytoplasm of the cell until the cytoplasm is pinched into two daughter cells. During the final phase of mitosis, telophase, the furrow forms an intercellular bridge using mitotic spindle fibers.

Detailed explanation-3: -At this point, the cell membrane fuses shut on either side of the contractile ring – creating the membranes of two new and independent cells. Cleavage furrows are primarily found in animal cells and some algal cells.