Mitosis Lab
1.  Find a cell undergoing each stage of mitosis.  Make a drawing of each.  Label its parts.

 

Prophase      Metaphase
 
 
 
 
 
 
 

Anaphase      Telophase
 
 
 
 
 
 

2.  Observe the Allium root tip slide on high power.  Count the number of cells in your field of vision at the very tip of the root.  Of those, how many are undergoing mitosis?

Total number of cells: ______

Cells in mitosis:      ______

What percentage of cells are undergoing mitosis?   _______%
 

3.  Again observe the Allium root tip slide on high power.  Count the number of cells in your field of vision at the opposite end of the root from the tip.  Of those, how many are undergoing mitosis?

Total number of cells: ______

C
ells in mitosis:      ______

What percentage of cells are undergoing mitosis?   _______%
 

4.  In which part of your specimen do you find the most cells undergoing mitosis? Provide a reason why that might be.
 
 
 
 
 
 

Postlab questions:

1.  How long does mitosis usually last?  ______hours.
 

2.  How long does the entire cell cycle last?  ______hours.
 

3.  On average, what percentage of cells should be undergoing mitosis at any given time?  Show your calculations.

 _________%.

4.  How close did this come do your observations at the tip of the root?
 
 
 

5. How close did this come do your observations at the opposite end of the root?
 
 
 


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