A biologist examines a series of cells and counts 160 cells in interphase, 20 cells in prophase, 6 cells in prometaphase, 2 cells in metaphase, 7 cells in anaphase, and 5 cells in telophase. If the complete cell cycle requires 24 hours, what is the average duration (in hours) of the M phase in these cells?
A biologist examines a series of cells and counts 160 cells in interphase, 20 cells in prophase, 6 cells in prometaphase, 2 cells in metaphase, 7 cells in anaphase, and 5 cells in telophase. If the complete cell cycle requires 24 hours, what is the average duration (in hours) of the M phase in these cells?
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From the results entered in the table below, estimate the percentage of time the onion root tip cells spend in each different stage of the cell cycle
| Stage of Cell Cycle | Number of Cells (Your Root Tip) | Number of Cells (Your Partnerâs Root Tip) | Proportion of Cells in Each Stage of the Cell Cycle | |
| Interphase | 35 | 34 | ||
| M-Phase | Prophase | 4 | 3 | |
| Metaphase | 4 | 3 | ||
| Anaphase | 3 | 4 | ||
| Telophase | 2 | 3 | ||
| Cytokinesis | 2 | 2 | ||
Interpreting your observations:
What can you conclude about the proportion of time cells spend in M-phase?
Do you think the proportion of time spent in M-phase would be greater or smaller in more mature regions of the root?
