Nucleolus begins to fade.

(a)  

New nuclear membrane forms around the chromosomes.

(a)  

The cytoplasm divides.

(a)  

Chromosomes become invisible.

(a)  

Chromosomes are at the equator of the cell.

(a)  

Nuclear membrane begins to fade.

(a)  

The division or cleavage furrow appears.

(a)  

Chromosomes move toward the poles of the cell.

(a)  

Chromatids line up at the equator of the cell.

(a)