- Created by: Sonia
- Created on: 27-04-09 08:38
What is Mitosis?
Mitosis produces two daughter nuclei that have the same number of chromosomes as the parent cell and each other.
The process of Mitosis
Interphase - The cell is not dividing, chromosomes are invisible.
Prophase - The chromosomes visible and nuclear envelope disappears.
Metaphase - Chromosomes arrange at centre of cell.
Anaphase - 2 threads of a chromosomes (Chromatid) migrates to an opposite pole. Spindle fibres spilts the centromere.
Telophase - Nuclear envelope reforms.
The importance of mitosis
Growth - if new organism is to be the same to its parent, all cells that grow must posses the same set of genetic information. Mitosis ensures that this happens.
Differentiation - These different cell types each divide by mitosis to give tissues made up of identical cells which perfoms a particular function.
Repair - Mitosis replaces cells that are damaged or dead ones.