Biology 1201A Chapter Notes - Chapter 8: Separase, Zygote, Kinetochore
5 Oct 2015
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Chapter 8 cell cycle reproduction and replacement of cells lost to wear and tear. 8. 1 the cycle of cell growth and division: an overview. Progeny cells (single-celled organisms) needed for expanding population size, multicellular tissue growth, asexual. Cells in the human body rarely divide, some may die immediately. 8. 2a replication occupies most of the cell cycle in rapidly dividing prokaryotic cells. Nucleoid: compacted in a central region when nutrients are abundant, they have no need for a b period since. 8. 2b replicated chromosomes are distributed actively to the halves of the prokaryotic cell. Origin of replication: the replication of the bacterial chromosome starts at the ori. The ori is in the middle of the cell, where the enzymes for replication are. The ori gets duplicated and there are two new origins at the two opposite ends creating poles of the cell. Cytoplasmic division occurs, an inward constriction of the cytokinetic ring of the cytoskeletal proteins.
