Question

What important changes are occurring in the nucleus during the longest phase of mitosis? Does this justify the amount of time spent in the phase?

How do cancer cells differ from normal cells in time spent for each cell cycle phase?

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9. How do cancer cells differ from normal cells in total time required for mitosis?

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10. What are your hypotheses?

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11. Given the data presented here, what conclusion can you make about your hypotheses?

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12. Imagine you decide you want to publish the results of your (this) research. What are some important assumptions made in this study that you might need to defend in your written work

Answer 1

8) The longest phase of mitosis is prophase. The changes occur in the nucleus and cell during the longest phase of the cell cycle are cells grow, duplicate DNA and preparing for division process.In this phase nuclear membrane disappears and nucleolus disintegrates. DNA condensed and form chromosomes during this phase. Centrosomes move to each pole of nucleus and mitotic spindles begin to arranged. The chromosomes then start to migrate to the middle of the cell.

9) Normal cells require 640 minutes during interphase, cancer cells only required 380. For prophase, cancerous cells need 15 minutes less than regular cells.

Cancer cells produce 117 minutes faster than regular cells.