Interphase is not technically part of mitosis, but is often included.
During interphase the cell grows and copies its chromosomes in preparation for cell division.
Chromosomes are not clearly discerned, although a dark spot called the nucleolus may be seen.
Also the cells may contain a pair of centrosomes, which are responsible for microtubule organization during mitosis.
Chromatin Fibers become tightly coiled and chromosomes become evident.
The nucleolus disappears and the mitotic spindle begins to form.
The mitotic spindle is composed of the centrosomes (centrioles) and the mitotic spindles that extend from them.
Also the centrosomes begin to move away from one another
The Nuclear envelope dissapears and the mitotic spindles begin to interact with the chromosomes.
Each of the two chromatids of the chromosome has a kinetochore attached to its centromere.
Metaphase is the longest stage of mitosis.
The centromeres are now at opposite ends of the cell.
The chromosomes meet in the middle of the cell along the metaphase plate.
Each sister chomatid is attached to a kinetochore from the opposite pole.
Anaphase is the shortest phase of Mitosis.
The two sister chromatids split to form chromosomes.
The two chromosomes move to opposite ends of the cell as the kinetochores shorten
The cell elongates
At the end of anaphase each side of the cell has equal amounts of chromosomes.
Two daughter nuclei begin to form in the cell and nuclear envelopes begin to form.
Chromosomes become less condensed.
Mitosis: The division of one nucleus into two genetically identical nuclei, is now complete.
The division of the cytoplasm usually begins during late telophase, so two daughter cells appear shortly after mitosis.
In animals cytokinesis involves a cleavage furrow, which pinches the cell in two.
Mitosis allows for the reproduction of multiple identical cells.
This allows for new skin cells to be produced when old ones fall off or wounds to be repaired.
Mitosis also plays a role in ones growth and development.
- http:// www.youtube.com/watch?v =VlN7K1-9QB0
- http:// www.cellsalive.com/mitosis.htm
Hello, My name is Jon. I am a student at Grand Valley State University. I am studying for a secondary education degree with a major in biology and a minor in chemistry. I love to be outside and enjoy participating in many different sports, including wakeboarding.