Mitosis and Meiosis Online Lab

Mitosis and Meiosis Online Lab

Mitosis and Meiosis Online Lab

Answer the following questions using the provided links.

  1. Click here
  2. How many steps to complete Mitosis? ______Meiosis? ______
  3. Go to the last step in Meiosis. What does it say about “daughter cells”?

______Recently in the media news there has been a lot of discussion about “stem cells”. Click here

  1. What is a blastocyst? How many cells does it have?______

On the next slide what does it say about the potential of stem cells?______

______Where are the cells placed to develop? ______

  1. Look at the last slide. What do they hope these cells can be used for?

______

Here is another picture of ablastocyst the pink cells are the stem cells.

  1. Where is the blastocyst located?

______This shows you how big it is. Compare the stem cell to the dime. (Here are some realones!)

Look at the following about cancer; On the second to last slide it talks about why cancer cells are so dangerous.

  1. What does “metastasize" mean?______
  2. And why is it so dangerous? ______

______

  1. What is Meiosis?______

Use this RESOURCE to browse through each part.

Part 1: Reproduction

Give an example of asexual reproduction.______

What is a clone?______

Name the two types of gametes produced by meiosis.______

Part 2: Chromosomes in a Diploid Cell

What is the diploid chromosome number for humans?______
Egg and sperm cells are [ haploid / diploid ]Circle one

Part 3: Meiosis 1 and Meiosis 2

Name the stage of meiosis 1 where each of the following occurs:

Homologous chromosomes pair and form synapses / ______
Paired Chromosomes (bivalents) align at metaphase plate / ______
Two complete daughter cells form / ______
Nuclear membrane disappears. / ______
Nuclear membrane reforms. / ______
Chromosomes move to separate poles. / ______
View the meiosis 1 and 2 animation

At the end of meiosis 2, each cell contains how many chromosomes? ______

Part 4: A Review of Meiosis

Name and describe 2 errors that can occur during meiosis.
______

Check out the following videos:Meiosis

Conclusion

  1. Describe the differences between daughter cells produced by meiosis and daughter cells produced by mitosis.

______

______

  1. Review the diagram, and fill in the correct number of chromosomes per human cell in each blank.

Mother _____ Father _____

Meiosis ↓ Meiosis ↓

egg _____ sperm _____

Fertilization

zygote _____

Mitosis ↓

Embryo _____

Mitosis ↓

baby _____

12. How many chromosomes are there in a human skin cell produced by mitosis? ______

How many chromosomes are there in a human sperm cell produced by meiosis? ______

13. List 2 differences between mitosis and meiosis.

______

14. List 2 similarities between mitosis and meiosis?

______

Reinforce the concept of mitosis and meiosis by using the many animations and videos shown on the Cell Division homepage.

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