Mitosis
20 November 2020 22:01
Interphase:
• Not a stage of mitosis
• DNA replicates during the synthesis phase of interphase
1. Prophase
- Early prophase: DNA starts to condense and becomes visible as
threads
- Late prophase: Centrioles replicate and move to opposite poles of the
cell and begin to construct spindle fibres. Nuclear envelope disappears.
DNA fully condenses and chromosomes visible
2. Metaphase
- Chromosomes align on the spindle equator
- Spindle fibres attach to centromeres
3. Anaphase
- Shortest phase
- Spindle fibres shorten and pull the sister chromatids apart. Chromatids
move to opposite poles
4. Telophase
- Chromatids reach opposite poles and DNA starts to decondense. A
nuclear membrane forms around each set
MISTAKE, CENTRIOLES REPLICATE DURING INTERPHASE NOT PROPHASE
20 November 2020 22:01
Interphase:
• Not a stage of mitosis
• DNA replicates during the synthesis phase of interphase
1. Prophase
- Early prophase: DNA starts to condense and becomes visible as
threads
- Late prophase: Centrioles replicate and move to opposite poles of the
cell and begin to construct spindle fibres. Nuclear envelope disappears.
DNA fully condenses and chromosomes visible
2. Metaphase
- Chromosomes align on the spindle equator
- Spindle fibres attach to centromeres
3. Anaphase
- Shortest phase
- Spindle fibres shorten and pull the sister chromatids apart. Chromatids
move to opposite poles
4. Telophase
- Chromatids reach opposite poles and DNA starts to decondense. A
nuclear membrane forms around each set
MISTAKE, CENTRIOLES REPLICATE DURING INTERPHASE NOT PROPHASE
