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Mitosis Onion Tip webquest

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Name________________________
Mitosis Internet Review:
http://www.cellsalive.com
On the left side of the screen is a navigation bar, click on the link that says “mitosis”. Read the text on
the bottom of this page to answer the questions below.
1. Which stage does the following occur?
a. Chromatin condenses into chromosomes___________________________
b. Chromosomes align in the center of the cell__________________________
c. Longest part of the cell cycle________________________________
d. Nuclear envelope breaks down___________________________________
e. Cell is cleaved into two new daughter cells__________________________
f. Daughter chromosomes arrive at the poles__________________________
2. Now watch the video on this link. You can slow down the video by clicking step by step through
the process. (HINT: the colored chromosomes represent chromatids- there are two of each color
because one is an exact duplicate of the other),
a. How many chromosomes are visible at the beginning of mitosis?________________
b. How many are in each daughter cell at the end of mitosis?______________________
c. The little green shaped T things on the cell are______________________________
d. What happens to the centrioles during mitosis?_____________________________
3. Now go to the following link:
http://www.biology.arizona.edu/cell_bio/activities/cell_cycle/cell_cycle.html
Read through the introduction then click the “next” button. This will happen three times.
Now you will be given a “cell” and have to classify into one of the following stages. Complete
the chart below, keeping track of each cell that you classify.
Interphase
Number of
Cells
Percent of
Cells
(number of
cells/ 36
times 100)
Prophase
Metaphase
Anaphase
Telophase
Total
36
100%
4. Draw cells at each phase of mitosis. Label the chromosomes and other visible structures.
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