You have allowed microtubules to polymerize in vitro under conditions where you observe individual microtubule dynamics (e.g. using fluorescently-labeled tubulin and observing the microtubules on a fluorescence microscope). What happens to the newly exposed ends if you sever a microtubule with a high powered laser (to completely sever the microtubule, not just ânickâ or damage it)? Why does this happen?

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You have allowed microtubules to polymerize in vitro under conditions where you observe individual microtubule dynamics (e.g. using fluorescently-labeled tubulin and observing the microtubules on a fluorescence microscope). What happens to the newly exposed ends if you sever a microtubule with a high powered laser (to completely sever the microtubule, not just ânickâ or damage it)? Why does this happen?

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