Cell Division 1 Cell Division in Prokaryotes Binary

* Cell Division

* 1) Cell Division in Prokaryotes Binary Fission: division of a prokaryote cell into 2 identical offspring a) b) c) Chromosome are copied Cell enlarges Cell Membrane develops between the two chromosomes

*Binary Fission

* 1) Mitosis: cell replication to produce cells identical to the original 2) Meiosis: production of gametes (egg/sperm cell), that contain half the organisms genetic info.

* 1) The Cell Cycle: life of a cell from its origin in the division of a parent cell until its own division into 2 a) b) c) Interphase- preparation for Mitosis- nuclear division Cytokinesis- cytoplasmic division

* 1) Interphase: 3 steps that will prepare the cell for cell division a) G 1 phase: Growth of cell b) S phase: DNA Replicated c) G 2 phase: Growth of cell d) G 0 phase: Dormant

* 1) Prophase: a) b) c) d) Nuclear membrane disappears Replicated DNA coils into a chromosome Centrosomes move towards poles of cell Spindle Fiber extend Mitosis

* 2) Metaphase a) spindle fibers line chromosomes up in the center of the cell at metapheseal plate

* 3) Anaphase a) chromosomes separate equally and move toward poles of the cell

* 4) Telophase a) Spindle fibers break off b) chromosomes loosen to form chromatin c) Nuclear membrane forms around chromosomes

* 1) 2) Division of the cytoplasm 3) Plant Cells: cell plate forms in btwn each set of nuclei Animal Cells: cleavage furrow forms in btwn each set of nuclei