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Transcript 
BIOLOGY 3 CH-8 REVIEW
WORKSHOP
Contents
Cell Cycle
Mitosis
Meiosis
Why do cells divide?
Cell growth, repair, and
replacement of lost or
damaged cells.
Asexual Reproduction VS. Sexual Reproduction
Figure A: Asexual
Reproduction; bacteria
undergoing binary fission
(genetically identical)
Figure B: Sexual Reproduction;
eukaryotic organism with offspring
(not genetically identical)
1
2
3
4
5
The Eukaryotic Cell Cycle and Mitosis
The Eukaryotic Cell Cycle
The Eukaryotic Mitotic Phase
2
3
4
6
5
Growth factors signal and cell cycle
control system
Meiosis and Crossing Over
Diploid Cell
(Germ Cell)
Haploid Cell
(Sperm or Egg Cell)
Meiosis I
Interphase
Metaphase I
Prophase I
Anaphase I
Meiosis II
*Telophase I
and
Cytokinesis
Prophase II
*still considered Meiosis I
Metaphase II
Anaphase II
Telophase II
and
Cytokinesis
CROSSING OVER
CROSSING OVER (CONT.)
CROSSING OVER (CONT.)
Sex chromosomes
Nondisjunction
Abnormal Numbers of Sex Chromosomes
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