What is the main event of metaphase?
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Metaphase is marked by the alignment of chromosomes at the center of the cell, half way between each of the mitoic spindle poles. Movement is mediated by the kinetochore microtubles, which push and pull on the chromosomes to align them into what is called the metaphase plate. Chromosomes on the metaphase plate are held there tightly by pushing and pulling forces from the microtubules.
Microtubule structure allows them to be dynamic molecules. The subunit of microtubules is called tubulin and it is constantly added and removed from the ends of microtubules leading to a state of treadmilling. The chromosomes are held tightly by these forces constantly pushing and pulling on them.
Microtubule structure allows them to be dynamic molecules. The subunit of microtubules is called tubulin and it is constantly added and removed from the ends of microtubules leading to a state of treadmilling. The chromosomes are held tightly by these forces constantly pushing and pulling on them.
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all the chromosomes align at the equatorial plate at the centre of the cell
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