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Aditi Dudhane posted an Question
June 01, 2021 • 20:44 pm
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30 points
30 points
- IIT JAM
- Biotechnology (BT)
During prophase, what does it mean by the nuclear membrane disappears? is it digested or does it change its form? and also how does it reappear during telophase
during prophase, what does it mean by the nuclear membrane disappears? is it digested or does is change its form? and also how does it reappear during telophase?
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Abhijeet Gaurav![best-answer]()
During prophase, the “first phase,” the nuclear envelope starts to dissociate into small vesicles. The membranous organelles (such as the Golgi apparatus and endoplasmic reticulum) fragment and disperse toward the periphery of the cell. The nucleolus disappears and the centrosomes begin to move to opposite poles of the cell. Microtubules that will eventually form the mitotic spindle extend between the centrosomes, pushing them farther apart as the microtubule fibers lengthen. The sister chromatids begin to coil more tightly with the aid of condensin proteins and become visible under a light microscope. During Telophase at last Nuclear envelopes form around the chromosomes and nucleosomes appear within the nuclear area.
what is the mechanism for forming if those vesicles are is it similar to golgi vesicles?is it covered by anything and how do they associate in telophase?