a poster on Mitosis by Zaydia Ellis
What is Cell Division?
Why is Cell Division Important?
How Does Mitosis Work?
There are five steps in mitosis.
- Prophase: The shape of the DNA changes. Other changes take place in the cytoplasm.
- Metaphase: Chromosomes line up in the middle of the cell, pulled there by microtubules. Sister chromatids line up on each side of the metaphase plate. This can be compared to putting one left shoe on one side of the plate and one right shoe on the other side of the plate.
- Anaphase: Pairs of sister chromatids split and are pulled to opposite sides of the cell by the microtubules. This is like putting the left shoes into different sides of the cell; the same thing happens with the right shoes. At the end of anaphase, there is one complete set of chromosomes on each side of the cell and the sets are identical.
- Telophase: DNA returns to the state it was in during interphase
- Cytokinesis: then divides the rest of the cell, and two identical cells results
What is the importance of this?
Cell division research expected to lead to containment of cancer cells and regenerative medical treatments. Since cells and cellular division is the basis of all life the research in that area is creating different ways to deal with different diseases such as cancer. With out this research things like chemotherapy and other medicines would not be available for people illnesses.