Biology 1201A Chapter Notes - Chapter 8: Sister Chromatids, Decay Product, Nuclear Membrane
15 Jul 2015
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8. 1 the cell cycle of cell growth and division: an overview: new progeny cells= needed for expanding population size (single-cell, multicellular tissue growth, asexual reproduction, replacement of coordinating their growth, 8. 2a replication occupies most of the cell cycle in rapidly dividing prokaryotic cells: dna= hereditary information, chromosomes compacted into nucleoid- central region, when nutrients are abundant, b period=not necessary. 8. 3 mitosis and the eukaryotic cell cycle: mitosis works as long as daughter cells are exact genetic copies of parental cell. Dna molecules: dna replication increases # of dna in nucleus, but not # of chromosomes, clone: group of cells produced that are genetically identical. 8. 3b interphase extends from the end of one mitosis to the beginning of the next mitosis: factors that allow # of cell cycles allowed= hormones, growth factors, death factors, interphase: daughter cell enters initial period of cytoplasmic growth. G1 phase: cell makes rna, protein, cellular molecules, not dna. S phase: dna replicates, chromosomal proteins duplicated.
