How Cells Divide Mitosis Vs

Name: ______

Hour: ______

How Cells Divide Mitosis vs. Meiosis

Please go to the following link: http://www.pbs.org/wgbh/nova/baby/divide.html once you are at the site please go through the reading on the first page and answer the following questions. When answering these questions please use complete sentences.

1.  What is asexual reproduction? ______

2.  What is sexual reproduction? ______

3.  How does sexual reproduction assure that the proper amount of DNA is maintained in offspring? ______

4.  What is the process by which cells are created with only ½ the amount of DNA as the parent cell? ______

5.  What is Mitosis? ______

6.  How is most DNA duplication is the body accomplished? ______

7.  What is Meiosis? ______

8.  What type of cells does Meiosis produce in males? ______

9.  What type of cells does Meiosis produce in females? ______

10.  How many chromosomes are found in either an egg cell or a sperm cell? ______

Once you have answered all of the above questions please click on the Mitosis vs. Meiosis (the Flash version). As you go through each stage of Mitosis and Meiosis please use the chart to record the following information for each stage.

1.  The name of the stage. (Note: This animation uses the term ProMetaphase to describe Late Prophase. For our purposes, let’s just skip this step!!!

2.  A description of what is happening in this stage. At least two points about what is happening

3. A drawing of the stage including any labels included in the online drawing. (Meiosis only)

Mitosis (1 of 8 steps) Meiosis (1 of 15 steps)

Before We Split

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Before We Split

What are the results of Mitosis? ______
______
How many chromosomes are in human cells? ______
______
How many chromosomes are shown in this example? ______
______/ If sex cells didn’t have ½ the genetic material how many chromosomes would a fertilized egg have? ______
What are the results of Meiosis? (number of cells) ______
Each chromosome will contain genetic information from which parent? ______
Title: Interphase
Description: / Title: Interphase
Description:
Drawing:
Title: Prophase
Description: / Title: Prophase I
Description:
Drawing:
Title: Metaphase
Description: / Title: Metaphase I
Description:
Drawing:
Title: Anaphase
Description: / Title: Anaphase I
Description:
Drawing:
Title: Telophase
Description: / Title: Telophase I
Description:
Drawing:
Title: Cytokinesis
Description: / Title: Cytokinesis
Description:
Drawing:
Title: Interphase II
Description:
Drawing:
Title: Prophase II
Description:
Drawing:
Title: Metaphase II
Description:
Drawing:
Title: Anaphase II
Description:
Drawing:
Title: Telophase II
Description:
Drawing:
Title: Cytokinesis
Description:
Drawing:

When you have finished write a short paragraph summarizing the similarities and differences between Mitosis and Meiosis. ______

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