2.8 Mitosis Lsn

1. Mitosis is for
People, Plants, and Pets
Why is it important?
What does it do?

2. Recall the Cell Cycle’s
3 Main Phases?

3. IN WHICH PHASE DOES
DNA REPLICATION OCCUR?

4. Mitosis Has 4 (FOUR) Phases

5. Phases of Mitosis

6. WHICH PHASE OF MITOSIS?
Chromatin coils to
become chromasomes

7. Hmm, are These in Order?
During which phase of mitosis does cytokinesis begin?

8. WHICH PHASE OF MITOSIS DO YOU SEE?

9. MITOSIS ANIMATION
WHAT’S GOING TO HAPPEN?
Basic animation:
http://wormclassroom.org/files/worm/CellDivision.mov
More advanced terms, faster-paced, and with jazz!
http://wormclassroom.org/files/worm/CellDivision.swf

10. Cells in different phases of the cell cycle, some in mitosis.
You can identify these.
Allium (onion)

11. How long does mitosis take?

12. How long does mitosis take?

13. BONUS COVERAGE !!
1 TO 100 CELLS
Just click on the hyperlink
http://www.wormclassroom.org/files/worm/Focal6_1_410.MOV

14. FROM 1 to 100 “WORMS”
The “worm”, Caenorhabditis elegans (C. elegans), is a
nematode commonly used for genetic research because
it is simple, has a short life-span (reproduces quickly),
and is easy to cultivate.
This nematode “worm” is about the
size of a comma in your textbook: 1 mm.

15. I HAVE SOME QUESTIONS, TOO!
• HOW MANY CELLS DO WE HUMANS HAVE?
• WHAT HAPPENS IF MITOSIS DOESN’T STOP?
• WHY DO ADULTS STOP

16. REFERENCES
The diagrams, photos, animations, and movies contained in this presentation
are from non-copyrighted sources available on the web. Even so, I feel it
only proper to cite the following components, as they were most useful.
Mitosis diagram on Slide 6 (the first “Which Phase of Mitosis?” slide) was at
Biology Corner, accessed Mar 17, 2012.
http://www.biologycorner.com/lesson-plans/cells/cell-division/
1 to 100 “worm” mitosis movie was accessed from www.WormClassroom.org
Mar 17, 2012, maintained by the Laboratory for Optical and
Computational Instrumentation at the University of Wisconsin-Madison.