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A- prophase B-metaphase C-anaphase D-telophase E-cytokinesis ..ooo AT&T; 7:46 PM

ID: 101070 • Letter: A

Question

A- prophase B-metaphase C-anaphase D-telophase E-cytokinesis ..ooo AT&T; 7:46 PM 140% , Escience Lab 3 Experiment 2 Lab Report Following Chromosomal DNA Movement through Mitosis: 1. Describe the bead diagram in experiment 2 for prophase. 2. Describe the bead diagram in experiment 2 for metaphase. 3. Describe the bead diagram in experiment 2 for anaphase. 4. Describe the bead diagram in experiment 2 for telophase. 5. Describe the bead diagram in experiment 2 for cytokinesis. 6. Why are chromosomes important? What information do they provide? 7. How many chromosomes did each of your daughter cells contain? 8. How often do human skin cells divide? Why might that be? Compare this rate to how frequently human neurons divide. What do you notice?

Explanation / Answer

1) Prophase: During prophase, chromosomes condense. Nuclear membrane and nucleolus disappear. Mitotic spindles begin to form.

2) Metaphase: Chromosomes align along the metaphase plate. Kinetochores from each chromosome attach to Microtubules of opposite poles.

3) Anaphase: Here, sister chromatids are separated from each other and pulled towards opposite ends of the cell. Microtubules begin to contract.

4) Telophase: Mitotic spindle is broken down. Chromosomes begin to re-condense. Nucleus begins to form.

5) Cytokinesis: Division of cytoplasm resulting in the formation of two identical daughter cells.