1. 10.2 The Process of Cell Division

2. Q: What is the role of chromosomes in cell division?
A: Chromosomes make it possible to separate DNA precisely during cell division.

3. Chromosomes-contains the genetic information (DNA)
In prokaryotes: not in nucleus
Circular (plasmid)
In Eukaryotes: several chromosomes
Often X shaped

4. Chromatin-DNA coiled around histone

5. The Cell Cycle-growth, prepares for division & divides to form 2 daughter cells
Prokaryotes
DNA duplicates
Membrane indents
Cell forms 2 identical

6. Eukaryotes-2 parts: Interphase & Cell Division
G1-Cell growth
S-DNA replication
G2-Prepare for mitosis
Largest amount of cell life in this part (Interphase).

7. M Phase or Mitosis & Cytokinesis
PMAT=Mitosis
Prophase- genetic material condenses (X), chromosome visible, spindle forms.
Centromere-center of chromosome
Centriole-animals; helps cell divide.

8. 2. Metaphase- chromosomes (X) line up in the middle of the cell
2. Metaphase- chromosomes (X) line up in the middle of the cell. Centrioles opposite ends.

9. 3. Anaphase-chromosomes separate at the centromere & move to opposite ends.

10. 4. Telophase- Nuclear envelope re-forms around chromosomes.

11. Cytokinesis- Division of the cytoplasm. Cell plate forms in plants.
Plant Cells
Animal Cells

13. WB Pgs
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