Preprophase bands Notes: Definitions & Explanations PDF | Download eBooks
Study Preprophase bands lecture notes PDF with biology definitions and explanation to study “What are Preprophase bands?”. Study preprophase bands explanation with biology terms to review biology course for online degree programs.
Preprophase bands Definition:
Microtubules in the cytoplasm become concentrated into a ring called the preprophase band. band disappears before metaphase but predicts the future plane of cell division.
Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson
Preprophase bands Notes:
The preprophase band is a microtubule array found in plant cells that are about to undergo cell division and enter the preprophase stage of the plant cell cycle. Besides the phagosome, it is the first microscopically visible sign that a plant cell is about to enter mitosis. The preprophase band forms just before the mitosis starts. It forms a dense band of microtubules around the phagosome and the future division plane just below the plasma membrane. It encircles the nucleus at the equatorial plane of the future mitotic spindle when dividing cells enter the G2 phase of the cell cycle after DNA replication is complete. The preprophase band consists mainly of microtubules and microfilaments.
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