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Lab Report 9

Lab Report 9

Q 1. Watch the onion root tip mitosis. While you are watching the video, answer the following questions… When you are confident that you have identified each stage, perform a sketch of each stage on printer paper (NOT binder paper!) Make each drawing 4 cm square. Take your time and remember to label each drawing with the phase that it represents and list the major changes that occur at each stage.

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Cell cycle regulators are group of proteins that checks the status of the cell at each phase of cell division, including damage in DNA and allow the cell to move to the next phase of cell division if conditions are favorable. If the cell cycle regulators find damage in DNA they signal for apoptosis or programmed cell division of the cell.