1. Youngeun Park Helia Hosseinpour
Mitosis
Youngeun Park
Helia Hosseinpour

2. Click on a picture of a phase for more information
Works Cited
1. Prophase
4. Telophase
Mitosis overview
Click on a picture of a phase for more information
3. Anaphase
2. Metaphase

3. Mitosis overview

4. Prophase
Chromatin fibers become coiled and condense into chromosomes. Identical sister chromatids made
Nucleoli disappears
Mitotic spindles (centrosomes, microtubules) form
Asters
Chromosomes move away from each other
Nuclear envelope fragments
Microtubules invade the nuclear area
Each chromatid has Kinetochore on the centromere
that microtubules attach to.
Main Screen

5. Metaphase Centrosomes are at opposite parts of the cell
Chromosomes arrive at the metaphase plate (equator).
Kinetochores of sister chromatids are attached to the kinetochore microtubules from opposites poles
Main Screen

6. Anaphase Shortest stage
Cohesions proteins cleared causing sister chromatids to part. Each become chromosomes
The daughter chromosomes move to opposite ends of the cells because kinetochore microtubules shorten.
Chromosomes move toward the centromere at 1𝜇m/s
Cell elongates and two ends of the cell has equivalent collections of chromosomes
Main Screen

7. telophase Two nuclei form in the cell
Nuclear envelope and nucleoli reappear
Chromosomes become less dense
Division of the nucleus into 2 genetically identical nuclei.
Main Screen

8. Glossary
Mitotic Spindles: An assemblage of microtubules and associated proteins that is involved in the movement of chromosomes during mitosis
Asters: The radial array of short microtubules that extends from each centrosome toward the plasma membrane in an amical cell undergoing mitosis
Centrosome: A structure present in the cytoplasm of animal cells that functions as a microtubules-organizing center and is important during cell division. Has two centrioles

9. glossary
Microtubules: a hollow rod composed of tubulin proteins that makes up part of the cytoskeleton in all eukaryotic cells
Kinetochore: a structure of proteins attached to the centromere that links each sister chromatid to the mitotic spindle.
Metaphase Plate: an imaginary structure located at a plane midway between the two poles of a cell in metaphase on which the centromeres of all the duplicated chromosomes are located.
Centromere: the region on each sister chromosome where it is most closely attached to the other chromatid.

10. Image reference Image 1: http://www.livescience.com/52512-mitosis.html
Image 6: htmlimage.html
Image 7,8,9,10:
Image11,12,13,14: 0Genetics%20Review/DNA_relication_eukaryotic/DNA_relication_eukaryotic _print.html