Stages of mitosis
Mitosis is the division of one nucleus with two copies of 'x-shaped' chromosomes to form two nuclei, each with one copy of single-stranded chromosomes.
The table below summarises the four stages of mitosis:
| Prophase |
The spindle network forms.
Inside the nucleus, the genetic material condenses into visible chromosomes.
| Metaphase |
The nucleus breaks down.
Chromosomes line up along the cell equator.
| Anaphase |
Spindle network contract.
Chromosomes are split, each chromatid goes to the opposite side of the cell.
| Telophase |
Two new nuclei form.
Cell membrane pinches in, forming two new cells.
At the end of mitosis, both nuclei are diploid; they contain two versions of each chromosome.