Biology 1201A Study Guide - Sister Chromatids, Spindle Apparatus, Dna Replication
Document Summary
Biology notes chapter 8 cell cycles pages 161-180. Cells are able to coordinate their growth and division by: dna replication, a dynamically changing cytoskeletion, cell cycle checkpoints. 8. 1 the cycle of cell growth and division: an overview. Cell replication is important because progeny cells (new cells) are needed for expanding population size, growth, coordinating, and regenerating. Too fast: daughter cells may be to small or lacking cytoplasm or other materials. A prokaryotic organism doubles in size, replicates its circular chromosome, and moves into two daughter cells (binary fission). 8. 2a replication occupies most of the cell cycle in rapidly. Bacteria and archaea contain their hereditary material in a single, circular chromosome of double stranded dna. Dna is kept in the nucleoid of a prokaryotic cell. When there is a high amount of nutrients, prokaryotic cells do not have a b period because their cytoplasm can divide as soon as replication is complete. 8. 2b replicated chromosomes are distributed actively to the.
