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3.01-The Cell Cycle and Mitosis

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by

Lynzey Buchanan

on 14 January 2015

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Transcript of 3.01-The Cell Cycle and Mitosis

3.01- The Cell Cycle and Mitosis

Hypothesis:
I predict the number of cells in each phase will decrease and the further in the process of cell division the less time it will take.
Data and Observations:
Safety Notes:
Always handle microscopes and glass slides carefully
Wash your hands after handling the prepared specimens

Materials:
Compound light microscope
Glass microscope slide with prepared onion root tip specimen

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
Conclusion
1.) Interphase was the longest phase and as the phases continue they got shorter and shorter.

2.) Interphase is the longest and Anaphase is the shortest. Interphase is so long because it is when the cell is developing and Anaphase is the shortest because the only thing done is the split of chromosomes.

3.) Interphase is the preparation phase and one cell only with dots and little lines. Prophase is the cell with lines surrounding it and random X's inside. Metaphase is when the X's are in a straight line down the middle of the cell. Anaphase is when the X's split to opposite sides of cells and now look like V's. Telophase now has a membrane around the chromosomes. Cytokinesis is when there are two cells now.

4.)When comparing the nucleus of a dividing cell with that of a nondividing cell, the difference is chromosomes are noticeable in a dividing cell.


Data Analysis:
Interphase:
part l- 147.05%
part ll- 155.10%
By: Lynzey Buchanan
prophase:
part l- 625%
part ll- 584.62%
metaphase:
part l- 1,666.67
part ll- 1,900%
anaphase:
part l- 2,500%
part ll- 2,533.33%
telophase:
part l- 2,500%
part ll- 1,900%
cytokinesis:
part l- 5,000%
part ll- 2,533.33%
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