Mitosis

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Mitosis
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ProphaseMitosis beginsThink P-Preparing or a
Pro is 1

• Nuclear membrane and nucleolus disappear
• Centrioles produce spindle fibers and move toward
  opposite sides
• Chromatids become visible and move toward the
  equator
• Spindle fibers attach to centromeres between poles

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Prophase
Plant Cell
Animal Cell
Spindle fibers
Centrioles
Photographs from http//www.bioweb.uncc.edu/biol1
110/Stages.htm
4
MetaphaseThink M for Middle

• Chromosomes line up along the equator
• Spindle fibers firmly attached to chromatids at
  the centromere

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Metaphase
Plant Cell
Animal Cell
Photographs from http//www.bioweb.uncc.edu/biol1
110/Stages.htm
6
AnaphaseThink A Apart or Away

• Centromeres break, chromatids separate
• and move to opposite poles
• Guided and pulled by spindle fibers

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Anaphase
Plant Cell
Animal Cell
Photographs from http//www.bioweb.uncc.edu/biol1
110/Stages.htm
8
Telophase

• Two nuclei form
• Spindle fibers and centrioles disappear
• Nuclear membrane forms and nucleus reappears
• Chromosomes appear as chromatin (threads rather
  than rods)
• Mitosis ends

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Telophase
Plant Cell
Animal Cell
Photographs from http//www.bioweb.uncc.edu/biol1
110/Stages.htm
10
Cytokinesis

• Cytoplasm is divided to create 2 daughter cells
  each with its own nucleus and identical
  chromosomes
• New cell membrane forms in animal cells
• New cell wall forms in plant cells

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Animal Mitosis -- Review
Interphase                                                              Prophase                                                             
Metaphase                                                              Anaphase                                                             
Telophase                                                              Interphase                                                             
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Plant Mitosis -- Review
Interphase                                                              Prophase                                                             
Metaphase                                                              Anaphase                                                             
Telophase                                                              Interphase                                                             
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Stages Of Mitosis
Mother cell
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How will we remember this?

• Lets do the hand