Question

Which steps are unique to the division of cells in animals? check all that apply.

O a cleavage furrow forms.
O centrioles attach to spindle fibers.
O a cell plate forms.
O chromosomes move to the middle of the cell.

Answer 1

Cell division in animals is distinct due to the formation of a cleavage furrow and the role of centrioles. The cleavage furrow occurs during cytokinesis and centrioles assist in mitotic spindle formation.

Step-by-step explanation:

The unique steps to the division of cells in animals include the formation of a cleavage furrow and the involvement of centrioles attaching to spindle fibers. During cytokinesis in animal cells, a cleavage furrow forms as a result of the contraction of actin filaments that pull the plasma membrane inward.

This is unlike plant cells, where a cell plate forms due to the presence of a cell wall. Moreover, during mitosis, specifically in prophase, centrioles, found only in animal cells, help in the formation of the mitotic spindle, which is crucial for the movement and separation of chromosomes.