NEET BIOLOGY

Detailed explanation-1: -To complete the cell cycle, the cleavage furrow draws the plasma membrane toward the cell center, pinching the cytoplasm into two lobes that are subsequently separated into two cells. The position of the cleavage furrow is induced by the mitotic spindle during early anaphase.

Detailed explanation-2: -Animal cell cleavage furrow formation is caused by a ring of actin microfilaments called the contractile ring, which forms during early anaphase. Myosin is present in the region of the contractile ring as concentrated microfilaments and actin filaments are predominant in this region.

Detailed explanation-3: -In an animal cell, a contractile ring of cytoskeletal fibers forms at the middle of the cell and contracts inward, producing an indentation called the cleavage furrow. Eventually, the contractile ring pinches the mother cell in two, producing two daughter cells.

Detailed explanation-4: -The first visible change of cytokinesis in an animal cell is the sudden appearance of a pucker, or cleavage furrow, on the cell surface. The furrow rapidly deepens and spreads around the cell until it completely divides the cell in two.

Detailed explanation-5: -The cleavage furrow is formed early in the anaphase stage of cell division. The cleavage furrow is an indentation of the cell membrane as the cell begins to split, and is caused by the formation of an actomyosin ring by the contractile muscle proteins actin and myosin.