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Mitosis in a root tip Use either Allium cepa (onion) or Vicia faba (broad bean).

Mitosis in a root tip Use either Allium cepa (onion) or Vicia faba (broad bean). The roots of onion/broad bean are very convenient for showing stages of mitosis, provided they are fresh and in a growing condition. Chromosomes of Allium : 2n = 16 NOTE: 3 zones of growth can be detected:-.

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