Relier Pairs mitosis GUIDE 8Version en ligne order the steps par lina berardinelli 1 when a cell is not undergoing mitosis, the chromosomes are scattered about the nucleus 2 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 3 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 4 when a cell is about to undergo mitosis, chromosomes become visible as they thicken 5 they now begin to move to the center of the cell 4 3 1 5 2
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