Shown below are photomicrographs of normal onion cells and colchicine-treated onion root tip cells undergoing cell division. Identify the stage of cell division these cells are into. UNTREATED COLCHICINE-TREATED Allium cepa ROOT TIP CELL Stage: Allium cepa ROOT TIP CELL Stage: HPO (400x) HPO (400x) Compare the cell sizes of the untreated and colchicine-treated Allium cepa. By looking at the given photomicrographs, what general type of chromosomal mutation did colchicine induce?

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