Relacionar Columnas mitosis GUIDE 8Versión en línea order the steps por lina berardinelli 1 when a cell is not undergoing mitosis, the chromosomes are scattered about the nucleus 2 once the chromosomes are line up at the center of the cell they divide. After they divide, the chromosomes begin moving to opposite ends of the cell 3 when a cell is about to undergo mitosis, chromosomes become visible as they thicken 4 they now begin to move to the center of the cell 5 what was a once a single nucleus is now two thick nuclei. a cell wall (membrane) develops down the center of the old cell separating them 1 4 3 5 2