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Biology help (mitosis)
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Would greatly appreciate some help on this question, my knowledge of mitosis is rudimentary at best (partly due to missing a recent lesson that wasn't repeated unfortunately).
here is the picture in question, it is to identify the stages of mitosis and state the reason for the choice, at this point just identifying the stages themselves would be a massive help. Thanks in advance if anyone helps out.
here is the picture in question, it is to identify the stages of mitosis and state the reason for the choice, at this point just identifying the stages themselves would be a massive help. Thanks in advance if anyone helps out.
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Remember PMAT
Prophase
Metaphase
Anaphase
Telophase
Prophase
Prophase
Metaphase
Anaphase
Telophase
Prophase
- chromosomes condense (become visible)
- nucleolus disappears
- nuclear envelope disappears
- 2 centrioles at the poles, to form spindle fibres
- chromosomes line up on the equator (imaginary line at centre)
- spindle fibres attach to the chromosomes on their centromere (kinetochore)
- kinetochore (protein at centromere)
- centromere splits
- each of the sister chromatids moves to opposite poles, pulled along spindle fibres
- (polar spindle fibres = attach from 1 pole to another)
- (spindle fibres = attach from 1 pole to a centromere on chromatid)
- chromatids at the poles
- nucleolus reforms
- nuclear envelope reforms
- no spindle fibres
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