Investigation 1: Models
Part 1: Modeling Mitosis
Hypothesis: If a model of mitosis is built out of oreo cookies then we are able to see each step of cell division.
Materials: original oreos, sprinkles, paper, pencil, phone
Procedures:
1. take 5 the oreos and split one side from the other making sure the white part in the middle is on one side.
2. take the sprinkles and on the oreo side with the whites, replicate each phase of mitosis on each of the 5 oreos.
3. then place all 5 oreos on a sheet of paper from prophase, metaphase, anaphase, telophase, and cytokinesis.
4. label each phase
5. take pictures of the diagram of mitosis just made.
Materials: original oreos, sprinkles, paper, pencil, phone
Procedures:
1. take 5 the oreos and split one side from the other making sure the white part in the middle is on one side.
2. take the sprinkles and on the oreo side with the whites, replicate each phase of mitosis on each of the 5 oreos.
3. then place all 5 oreos on a sheet of paper from prophase, metaphase, anaphase, telophase, and cytokinesis.
4. label each phase
5. take pictures of the diagram of mitosis just made.
Question:
Conclusion: In conclusion, my hypothesis was correct. We were able to fully see and understand the basic parts of mitosis. It helped refresh my memory every time this is being brought up and I learn something new each time so it is always good to relearn it. There can be problems while making these models but once looking at several other photos that can help get a better understanding, problem solved. There would be no changes if I were to redo this lab.
- Identify 1 step in your model where a mistake could occur. Describe the consequences of that mistake on the cell and on the organism.
A mistake that could occur in the model that can occur is during Anaphase. The spindle is supposed to connect with the chromosomes. If this does not happen, there can be a problem in the daughter cell. If there is a problem with the daughter cell, the organism would not be able to function fully. - Describe the limitations of your model versus observing this in the real world. The limitations of my model versus observing this in the real world are that you can only do so much to the oreal. In the oreal, you can only show the basic parts of the process because it is small. There are so many more that we can't see in mitosis in here so it can get confusing. If you don't know what you are doing, the colors may throw you off as well but color coding of the sprinkles is a good way to show the spindle fibers, nuclear envelopes, and other details.
Conclusion: In conclusion, my hypothesis was correct. We were able to fully see and understand the basic parts of mitosis. It helped refresh my memory every time this is being brought up and I learn something new each time so it is always good to relearn it. There can be problems while making these models but once looking at several other photos that can help get a better understanding, problem solved. There would be no changes if I were to redo this lab.
Part 1: Modeling Meiosis
Hypothesis: If a model of meiosis is built out of oreo cookies then we are able to have a better understanding of cell division.
Materials: original oreos, sprinkles, paper, pencil, phone
Procedures:
1. Split one side of the oreos from the other making sure the white part in the middle is on one side.
2. Use the sprinkles to relicate each phase of meiosis using the side with the whites.
3. As each phase is being created, place on the paper towel.
4. label each phase.
5. take pictures of the diagram that was just made
Materials: original oreos, sprinkles, paper, pencil, phone
Procedures:
1. Split one side of the oreos from the other making sure the white part in the middle is on one side.
2. Use the sprinkles to relicate each phase of meiosis using the side with the whites.
3. As each phase is being created, place on the paper towel.
4. label each phase.
5. take pictures of the diagram that was just made
Questions:
Conclusion: My hypothesis turned out to be correct. It was a little difficult to understand the concept of how to put the models together, however, I learned quite a few more things compared to before this lab was done. There were also no errors that were made for this lab. There is nothing I would change if I were to redo this lab.
- Identify 1 step in your model where a mistake could occur. Describe the consequences of that mistake on the organism's possible progeny. A mistake that could occur is not putting the chromosomes in the correct places. This can give off mutations, therefore cause disabilities.
- Compare and Contrast the process of mitosis and meiosis. The difference between mitosis and meiosis is that in mitosis, it is a asexual process meaning that there are no sexual relations involved that is necessary in order to reproduce. Also, there are only two identical daughter cells. In meiosis, the it is sexual and not all four daughter cells are identical. The number of chromosomes split and gametes are produced.
Conclusion: My hypothesis turned out to be correct. It was a little difficult to understand the concept of how to put the models together, however, I learned quite a few more things compared to before this lab was done. There were also no errors that were made for this lab. There is nothing I would change if I were to redo this lab.