Mitosis Chapter 8 Cell Division
Mitosis Chapter 8 Cell Division. Binary Fission Another name for cell division in prokaryotes is binary fission. Cell splits in two.
Jan 05, 2016
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MitosisChapter 8
Cell Division
Binary Fission
• Another name for cell division in prokaryotes is binary fission.
• Cell splits in two.
Hemorrhagic E. Colisee the binary fission
Mitosis
• In Eukaryotic Cells the division of cells is called Mitosis.
• Formation of two identical daughter cells.
Mitosis: Overview
Interphase after S phase Mitosis, Cytokinesis
Homologous chromosomes: same size and shape
Duplicated homologous chromosome made of sister chromatids
Daughter cells have the sameDNA as the mother cell
Chromtids separate
Mitosis Overview
• Mitosis Animation
• Mitosis Movie
Prophase
• Chromatin fibers coil to become dense chromatids
• They join at the centromere
Prophase
• Nucleolus Disappears
• Spindle Fibers Form as microtubules out from the centromeres
• Nuclear envelope begins to disintegrate
Prophase
Centrioles now at opposite poles
Note spindles stretched pole to pole
Metaphase
Sister chromatids line up at the equator
Anaphase
• Spindle fibers pull the chromatids to the opposite poles
Telophase
• Chromatids are now at the opposite ends of the cell
Interphase
Mitosis: I
nuclear envelope
pair of centrioles
Early Prophase Late Prophase Prometaphase
Metaphase
Mitosis: IIAnaphase Telophase Interphase
Cell splits
Cytokinesis
Separation of cytoplasm
Animal Cytokinesis
Mitosis is over, and the spindle is now
disassembling.
Band of microfilaments at the former spindle equator contracts.
The contractions continue and cut the cell in two.
cell wall
former spindle equator
cell plate
vesicles converging
Plant Cytokinesis
Which phase of mitosis?
Interphase
Prophase
Metaphase
Anaphase
Telophase
A: Interphase
Which phase of mitosis?
Interphase
Prophase
Metaphase
Anaphase
Telophase
A: anaphase
Which phase of mitosis?
Interphase
Prophase
Metaphase
Anaphase
Telophase
A:metaphase
Which phase of mitosis?
Interphase
Prophase
Metaphase
Anaphase
Telophase
A:prophase
Which phase of mitosis?
Interphase
Prophase
Metaphase
Anaphase
Telophase
A. telophase
Which phase of mitosis?
Interphase
Prophase
Metaphase
Anaphase
Telophase
A. prophase
Which phase of mitosis?
Interphase
Prophase
Metaphase
Anaphase
Telophase
A. telophase
Which phase of mitosis?
Interphase
Prophase
Metaphase
Anaphase
Telophase
A. anaphase
Which phase of mitosis?
Interphase
Prophase
Metaphase
Anaphase
Telophase
A. metaphase
Which phase of mitosis?
Interphase
Prophase
Metaphase
Anaphase
Telophase
A. interphase
Practice Links
• Animal Cell Mitosis• Plant and Animal Cell
Mitosis• Nice Mitosis Animal C
ells
• Mitosis World (yes, it is as good as Disney World)
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