<p>3.01 Lab Report </p><p>Purpose: Understand and identify the stages of the cell cycle and mitosis. Apply an analytical technique to estimate the relative length of each stage of the cell cycle.</p><p>Procedure: </p><p>Data and Observations: Fill in the data table containing a tally of the number of cells observed in each of the following stages:</p><p>Stage: Number of Cells in Part 1: Number of Cells in Part 2: Interphase Prophase Metaphase Anaphase Telophase Cytokinesis</p><p>Record any observations about the cells you observed (what does the cell look like for each stage):</p><p>Stage: Observations Part 1: Observations in Part 2: Interphase Prophase Metaphase Anaphase Telophase Cytokinesis</p><p>Data Analysis: Calculate the percentage of the cell cycle spent in each stage. Number of cells in given stage ÷ total number of cells counted × 100 = % of the cell cycle spent in this stage</p><p>Stage: Percentage of Cells Part 1: Percentage of Cells in Part 2: Interphase Prophase Metaphase Anaphase Telophase Cytokinesis</p><p>Create a graph that represents the time spent in each stage of the cell cycle. (you may place the graph here or submit as a separate attachment) Conclusion: Be sure to answer the following reflection questions in the conclusion of your lab report: 1. Based on your data, what can you infer about the length of time spent in each stage of the cell cycle? </p><p>Hint: An inference is what you are able to conclude based on the data, facts or observations.</p><p>Stage: Based on my data and length of time spent in this stage, I can infer … Interphase Prophase Metaphase Anaphase Telophase Cytokinesis</p><p>2. What stages were the longest and shortest? Give a brief explanation of why these stages may have that time period.</p><p>The longest stage is ….. The shortest stage is ….. I believe the reason for this is …..</p><p>3. What is a distinguishing visible feature of each stage of the cell cycle?</p><p>Stage: A distinguishing visible feature for this stage is … Interphase Prophase Metaphase Anaphase Telophase Cytokinesis</p><p>4. What differences can you see when you compare the nucleus of a dividing cell with that of a nondividing cell?</p><p>Stage: What I see inside the nucleus of this cell is … Dividing Cell Non-Dividing Cell</p><p>5. If your observation had not been restricted to the tip of the onion root, how would the results be different? Hint: Remember the cells elsewhere in the plant are mature cells. Considering this, describe which phase of the cell cycle you would expect to see more cells undergoing – Interphase or Cell Division?</p><p>All parts need to be included to receive full credit for the lab.</p><p>If you need help please contact your biology instructor.</p>