Chromosomes http://learn.genetics.utah.edu/content/begin/tour/
1. Click on “What is a Chromosome?” If you pulled out all the DNA
from one cell how long would it be?
2. How does all that DNA fit into one microscopic cell?
3. What are chromosomes?
4. How many chromosomes do humans have in each cell?
5. How many chromosomes do mosquitos have? Onions? Carp?
Mitosis Animation (watch the animation…it is kind of cool )
http://biology.about.com/science/biology/library/blmitosisanim.htm
8. What happened to the light blue nucleus? You might need to scroll
down and watch the animation to figure this one out.
9. What percent of the cell’s life is spent in interphase? Hint:
You need to click on mitosis to find out more about that step in
mitosis.
The Cell Cycle & Mitosis
http://www.biology.arizona.edu/cell_bio/tutorials/cell_cycle/cells2.h
tml
Click on Next to find the answers. The questions are in order.
10. What happens in the S (Synthesis) phase of the cell cycle? Hint:
look at the picture and find S phase.
11. What happens when regulation of normal cell growth and behavior
is lost?
12. Compared to the rest of the cell cycle how long is the M
(mitosis) phase does it take up a lot of the cell's life or a
very little portion of the cell's life? Hint: look at the
picture.
13. Draw a picture of a cell in…
Interphase
Prophase
Metaphase
Telophase
Anaphase
14. What do we call chromatin when it becomes visible in a light
microscope?
15.
What starts to appear in prophase?
16. What do the chromosomes do in metaphase?
causes the chromosomes to move?
What structure
17. Spindle fibers align the chromosomes along the middle of
the cell nucleus. This organization helps to ensure that in the
next phase, when the chromosomes are separated, each new nucleus
will receive one copy of each ____________
http://www.iknow.net/player_window.html?url=media/cell_cycle_intro_au
to.swf&width=360&height=285
18. What is the period between divisions called?
19. What happens during the S phase?
http://www.mayoclinic.com/health/cervical-cancer-vaccine/WO00120
20. What is the leading cause of cancer
death in women?
21.
Who should get the Gardasil vaccine?
22. What is one non-sex related thing that can
double your risk for cervical cancer?
http://www.caring4cancer.com/go/testicular/news?NewsItemId=20080724el
in014.xml
23. What are the #1 and #2 causes of death in the United States?
24. According to the article, how many people are
expected to die from cancer in the US this year?
___________
25. Armstrong and the 4 doctors developed a “call to
action” to bring awareness to cancer prevention efforts--list 5 of them.
http://www.biology.arizona.edu/cell_bio/activities/cell_cycle/01.html
Click on the phase where each cell belongs until the page tells you
that you are finished (you will classify 36 cells total. How many
cells were in each phase?
Interphase______
Prophase______
Metaphase______
Anaphase______
Telophase______
http://www.kumc.edu/instruction/medicine/anatomy/histoweb/cytology/cy
tology.htm
Click on "1. Onion Root Tip" in the top left hand corner. Then click
on "Expanded View" at the bottom of the picture. Interphase,
prophase, metaphase, anaphase, and telophase are all shown in this
picture. Under the phase below, describe where each phase is located
(for example: 10 cells up and three cells in from the right is
telophase OK so that is not true, but you get the idea ).
Interphase
Prophase
Metaphase
Anaphase
Telophase