Arizona Biology Project

Mitosis

When you click Submit (at the bottom of this web page) it will save your work on the server for me. If you get a "proxy error" hit -refresh- until you get a "Thanks"

You might want to actually write your answers in Word (so you can spell check them) and then cut-and-paste into the boxes. That way, if the computer misplaces your work you can just re-paste the answers.

Since you may work on this over more than one day, and you can work at home, I will keep track of what you have done. Feel free to click submit as you work to save your work to the server. 

TAB OR USE THE MOUSE Between the fields....

Answer the questions as best you can. The boxes will expand as you type if you need more space. (Don't worry if it is a one word answer. The box size is standard.)

The ideal group size is 2. As an exception I will allow groups of 3. If you work as a group of 3 I expect better answers. Group sizes above 3 will be penalized in the grading. 

Name(s):

You are encouraged to work in small (2-3) groups

1-Last Name:   First Name:

2-Last Name:   First Name:

Your answers will have to be perfect for a group size of 3 not to cost you in the grading. No groups larger than 3 will be accepted.

3-Last Name:   First Name:


Class Period 

1 2 3 4 5 6 NA

This is a relatively long assignment (there are many blanks). Pace yourself, but don’t get distracted. There is more to do besides just reading the tutorials.

You are encouraged, but not required to work in pairs. If you do not "submit" it electronically, I won't get the work!

 1-Go to the Arizona Biology Cell Biology Education site:

 The Biology Project: Cell Biology  This will work best if you open it in a new windows-just clicking should do it, but if not, try opening a second Explorer (Ctrl-N) and following the link from only one window.

 2-Within this site you will do several things. Please note that this site is intended for college students, and may include vocabulary you will have trouble with. Do not hesitate to ask for definitions.

 3-Click on “Cell Cycle and Mitosis”

The "form handler" software doesn't like "blanks" so, if you don't have an answer, leave the -No answer- in the box.

4-Using the “next” command at the bottom of each screen go through the 3 modules in this section (DNA Basics, The Cell Cycle, Mitosis). Don’t bother with the mitosis animation-it doesn’t always play well on these machines.

5-Answer the following questions:

Q-1: Define Chromatin:

Q-2What does the G stand for in G1 and G2? Describe (in order) the stages of the cell cycle.

 Q-3 Describe the stages of mitosis in words. You should have one sentence for each stage (that is a minimum of 5 sentences. Don't just cut and paste. I know the standard descriptions. Explaining in your own words will convince me you understand. (THIS IS THE BULK OF THE GRADE!)


6-Go back to the Cell Biology Page and in the left hand column there is an activity: Onion Root Tips. Click on that.

7-Read and follow the “next” until you get to the table, which I have copied below  for you.

 

Interphase

Prophase

Metaphase

Anaphase

Telophase

Total

number of cells

36

percent of cells

100%

As you carry out the on-line onion root tip lab, record your data in this table.

Q-4: In which phase does a cell spend most of its time?