Do you expect any color or labeling in onion cells? Why not? 2. Would you expect Lugol's Solution to stain onion cells? Why or why not? Finally, look at cheek cells. Can you find the nucleus? 3. What strikes you as different in terms of cell shape compared to onion cells or cork cells? Why do you think that is? Think about differences between animal and plant cells

1. How did your results differ from the class data for each phase of mitosis? 2. Write a brief paragraph stating whether or not your hypothesis was supported by the class data that you collected and an explanation of why/why not.

1. What propels the centrosomes apart from one another during prophase? 2. How do the kinetochores of sister chromatids end up facing in opposite directions? 3. What role do the nonkinetochore microtubules play during mitosis? 4. During prometaphase, the sister chromatids jerk back and forth. What causes this back-and-forth motion? 5. When in mitosis does the cell reach the M checkpoint, and what is its function? 6. Imagine a cell with a genetic mutation that prevents it from synthesizing functional cohesins. At what stage might the cell cycle be disrupted? Support your answer with evidence from the text. 7. Cytokinesis, the last stage of the mitotic M-phase, divides the original cell into two daughter cells. How do these daughter cells compare genetically?

1. What are cell lines? 2. What are 2 applications of cell lines in biomedical research?