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Organelle
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Prometaphase Two
Prometaphase II is a stage of meiosis II when the nuclear envelope breaks down
Microtubules extend from the centrioles, forming a spindle
Kinetochores monitor attachment status and tension to activate checkpoints and error-correction mechanisms.
and the spindle is fully formed.
During this stage, each sister chromatid forms a kinetochore that attaches to microtubules from opposite poles
Microtubules extend from the centrioles, forming a spindle.
Nuclear envelope breakdown: The nuclear membrane breaks down into small vesicles, allowing spindle microtubules to access the cell's genetic material
Kinetochore formation: A protein structure called a kinetochore forms around the centromere, which is the central point of the sister chromatids
Microtubule attachment: Microtubules from the centrosomes at the poles of the spindle attach to the kinetochores
Chromosome movement: The chromosomes move back and forth until they align on the metaphase plate
in the center of the spindle
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