Mitosis

Chromosomes: 1 large piece of DNA

Mitosis: Steps of dividing DNA

Chromatin: Loosley coiled DNA, Good for reading instructions

Chromatid: Tightly coiled DNA, Good for transport

Centriole: Connects spindle fibers

Prophase:

• 1st step of mitosis
• Nuclear Membrane disappears
• Nucleolus disappears
• Centrioles begin to move in opposite directions
• Cytoskeleton disappears
• Spindle Fivers grow out of centrioles and centromeres

Metaphase:

• Centrioles at opposite parts
• Sister chromatids are lined up at the equator
• Spindle fibers attach chromosomes to both poles

Anaphase:

• Centromere breaks
• Sister chromatids move toward opposite parts (forms “V”)

Telophase:

• The nuclear membrane and Nucleus reappear
• Spindle Fibers → Cytoskeleton
• Chromatid → Chromatin

Cytokinesis:

• Divide cytoplasm and organelles
• Cytoskeleton chokes the cells in half
• Creates identical daughter cells in interphase

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