Mitosis Review

Today in class we went over our answers for the book questions which we did over the past two days. We also confrenced our answers for the extended responce (questions 7 and 8).

For the multiple choice the answers were:

1. D ten hours

2. C 21 hours

3. D 22 hours

4. A DNA replication

5. B 6 hours

6. B metaphase.

We dont go over the answers with Mr. Finley so make sure you contact your group to find out the answer they got!!! Make sure that you use your time vey thoroughly because you never know weather or not you will be handing the work in!!!

The stages of mitosis in order are:

1. Prophase

2. Metaphase

3. Anaphase

4.Telephase

Next we went over what happens in prophase which is the process of chromatin (unraveled chromasomes) becoming chromasomes. Only one other important thing happens, which is the centrasomes become centreals and then they move to opposite sides of the cell. plus only chromatin is visible in the microscope!! So basically, the chromatin becomes chromasomes. Then the nuclear membrane breaks down. And Finally, the centreals go to opposite sides of the cell.

Next we went over Metaphase. The big idea is that the nucleus totally dissapeared and dissolved. And that the centreals have produced spindle fibers connecting to the chromasomes (the centromere to be exact). And there is one last thins that is MOST IMPORTANT THING IN METAPHASE IS: that all the spindle fibes aline the chromasomes to the CENTER on the cell.

After we went over anaphase. So prepair youself, this might be tricky. First thespindle fiber pull apart all the chromasomes to opposte sides of the cell. You can tell the cell is in anaphase by the chromasomes pointing to the center of the cell.

And finally, telephase. A new neculus forms around the chromasomes and the cell begins to pinch apart.

*REMEMBER YOUR GROP LEADERS AND TO COMMENT ON YOUR BLOGS!!!

-V.F. (tori fusco)