Mitosis

1
Mitosis
2
ProphaseMitosis beginsThink P for 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

3
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 center of the cell
• Spindle fibers firmly attached to chromatids at
  the centromere

5
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, forming 2 groups
• Guided and pulled by spindle fibers

7
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
• Nucleolus becomes visible
• Chromosomes appear as chromatin (threads rather
  than rods)
• Mitosis ends

9
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

11
Animal Mitosis -- Review
Interphase                                                              Prophase                                                             
Metaphase                                                              Anaphase                                                             
Telophase                                                              Interphase                                                             
12
Plant Mitosis -- Review
Interphase                                                              Prophase                                                             
Metaphase                                                              Anaphase                                                             
Telophase                                                              Interphase                                                             
13
Stages Of Mitosis
Mother cell