Name__________________________________________________Period_____________ 1
Antonelli – Biology – Cell Cycle and Mitosis Tutorial
Cell Cycle and Mitosis Tutorial
Please go to
http://www.biology.arizona.edu/cell_bio/tutorials/cell_cycl
e/main.html
Read through the information and answer the questions
below.
Questions on this sheet are in italics. Click
“Next” when you complete each page.
DNA Basics
What is DNA and where is it stored?
1. What is chromatin?
2. What is the difference between chromatin and
chromosomes?
3. Why is chromatin extended during interphase?
4. Describe the relationship between chromatin, histones
and nucleosomes?
5. What is DNA?
6. What is the process of mitosis designed to do?
The Cell Cycle
1. What is the cell cycle?
2. What are the stages of the cell cycle and what do the
cycle abbreviations stand for?
3. Sketch the circular diagram that depicts the cell
cycle and its stages. Be sure to indicate each stage
on the diagram..
4. What is
cancer?
5. What is p53?
Mitosis
What is (and is not) mitosis?
1. Define “mitosis”.
2. Is interphase part of mitosis?
consist of?
What does interphase
Name__________________________________________________Period_____________ 3
Antonelli – Biology – Cell Cycle and Mitosis Tutorial
Interphase and mitosis
3. Describe each of the following phases of the cell
cycle and draw a rough sketch of the appearance of the
cell in each phase.
a. Interphase
b. Prophase
c. Prometaphase and Metaphase
d. Anaphase
e. Telophase
f.
Cytokinesis
Watch the flash mitosis animation to see all of the phases
in sequence.
Go to http://www.cellsalive.com/mitosis.htm and watch the
mitosis animation there. You can click on each phase to
get a still picture of the phase. Compare these pictures
to the sketches you drew above and revise your drawings as
necessary.
Now go to http://www.cellsalive.com/cell_cycle.htm and
watch the cell cycle animation.
Write a brief summary of
each phase below:
Name__________________________________________________Period_____________ 5
Antonelli – Biology – Cell Cycle and Mitosis Tutorial

Interphase
o
G0
o
G1
o
S
o
G2
o
M
When are there checkpoints during the cell cycle?
you think is the purpose these checkpoints?
What do
Return to
http://www.biology.arizona.edu/cell_bio/tutorials/cell_cycl
e/problems.html
Answer the self-quiz questions to test your knowledge of
mitosis.
After you have gone through the self-quiz, go to
http://www.biology.arizona.edu/cell_bio/activities/cell_cyc
le/cell_cycle.html
Read through information on the page and then click “next”.
This page will allow you to review the stages of mitosis.
Click “next” when you have finished reviewing the stages.
Use the following table for the assignment described on the
page. After you have read the description of the
assignment, click “next”.
At the top left of the page is an image of an actual onion
root cell at some stage in the cell cycle. Click on the
phase in which the cell belongs. The software will give
you feedback on how to proceed. Record how many cell
images were in each particular phase and then calculate the
percent of cells in that stage. Enter this information
above.
Based on the data in the table, what can you conclude ? In
which stage do you think cells spend most of their time?