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Storyboard Text
- Metaphase
- Anaphase
- Beginning
- l l
- l l
- l l
- l l
- End
- l
- l
- l
- l
- l
- l
- l
- l
- Telophase
- Cytokinesis
- (Teacher explaining) During Metaphase the copied chromosomes will line up in the middle of the cell, these chromosomes are attached to spindle fibers that will be later used to split the DNA.
- (Teacher explaining) In Anaphase copied DNA is torn apart by spindle fibers and centrioles. Towards the end DNA moves to opposite poles of the cell.
- Any Questions?
- What happens when something goes wrong?
- Mutations in Genes involving checkpoints can end in an out of control cell cycle. The result of this is uncontrolled cell division: cancer. Checkpoints in the cell cycle will prevent cell division if the cell is short of nutrients, the DNA within the nucleus cannot be replicated, or if it is damaged.
- (Teacher Explaining) In Telophase the nucleus is re made, now both sides of the cell have its own set of DNA protected by a membrane.
- (teacher Explaining) Lastly we have Cytokinesis , during this stage everything outside of the nucleus is split up. The outcome is genetically identical cells, that are also exact copies of the original cell.
- *bell ringing in the distance
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