AP BIOLOGY

Detailed explanation-1: -Cytokinesis is the physical process that finally splits the parent cell into two identical daughter cells. During cytokinesis, the cell membrane pinches in at the cell equator, forming a cleft called the cleavage furrow.

Detailed explanation-2: -Answer and Explanation: In animal cells, the area of the cell membrane that pinches inward to separate the dividing cell into two cells is called the cleavage furrow.

Detailed explanation-3: -A ring of protein filaments called the contractile ring forms around the equator of the cell just beneath the plasma membrane. The contractile ring shrinks at the equator of the cell, pinching the plasma membrane inward, and forming what is called a cleavage furrow.

Detailed explanation-4: -In fungal, amoeboid and animal cells, during the cytokinesis at the end of cell division, a cleavage furrow forms in the plasma membrane. A contractile ring containing actin and myosin is assembled at the selected site of the future cleavage furrow.

Detailed explanation-5: -Cytokinesis in animal and plant cells. 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.