Here is a converted copy of the PowerPoint that we will do in class today. You can follow along with me or work independently. All information you need is here on the blog. This blog was developed by Dr. G and Me for you! :) Enjoy!
Once you have completed taking notes on this slide show, click on the link for Gel Electrophoresis Virtual Lab above. You will compare this process to the actual activity that you completed at the molecular laboratory. How were they similar or different? Do you think this would have been more helpful to do before you went to the lab? If you went to this virtual lab before the field trip to the laboratory then was it helpful? Also, if you did not go to the molecular laboratory, how do you think virtual labs can help to replace difficult procedures and expensive equipment? Did you learn from it? What was it like to virtually complete a lab? Any thoughts you have about the experience you need to explain in your blog post.
When you have completed this, I would like you to try your forensic detective skills in taking part in solving three crime puzzles on the link above called Genetics Web Labs. Click on that link and then go to DNA Fingerprinting. What you have learned thus far will help you in understanding the concepts found in this web lab. You will make an evaluative blog post on this activity as well.
Use this embedded document to find the suspect at the ISB Secondary Campus crime scene! Who did it-suspect 1, 2, 3, 4, 5, or 6?
This is the DNA obtained from the blood sample from the crime scene. Study it. What will you look for as you try to match each suspect's DNA to the DNA sample from the crime scene?
Based on your findings, were any of the suspects present at the crime scene? Support your conclusion with specific evidence.
Why do people's DNA patterns differ so greatly?
How would your conclusions be affected if you learned that the suspect whose DNA matched the evidence had an identical twin?
Suppose you are a defense lawyer. DNA evidence indicates that the bloodstain at the scene of a crime belongs to your client. Do you think this DNA evidence should be enough to convict your client?
Resource: Pearson Education, Inc., (2005). Prentice hall science explorer: Cells and heredity. Saddle River, NJ: Pearson Prentice Hall.
Throughout the first and second parts of this unit, we have learned about three different tools that geneticists use in order to predict the probabilities of heredity and to diagnose a genetic disorder. Now, we are going to back up a bit to see exactly how cells replicate their DNA and how cells undergo division. The section we will use is in Chapter 2: Cell Processes and Energy, but begin with section 3: Cell Division. I think you will find this section to be interesting actually!
Below you will find a link to an Online Onion Root Tip Activity which explains the main stages of cell division. You will follow the instructions given by the online virtual lab, as well as the lab papers provided to you in class in order to figure out what stage of mitosis lasts the longest and which are the shorter stages.
Introduction: Find out the difference between Cytokinesis and Mitosis. How do they go together in order to complete the cell division process?
Part 1: Can you find dividing cells in the onion root tip?
What differences can you see when you compare the nucleus of a dividing cell with that of a
non-dividing cell?
Part 2: View a video of mitosis in an animal cell.
Part 3: Identify at least one cell in each of the stages of division summarized in the review.
Place the cursor over a dividing cell and click once. Identify the stage of division.
When you have identified at least one cell in each stage, proceed to the next section.
Part 4: See what differences you can detect between the division of an animal cell and a plant cell.
AFTER COMPLETING THESE TWO VIRTUAL LAB ACTIVITIES you will then hand in your lab papers for a grade on analysis of the data AND write a blog reflection on each activity to demonstrate your understandings of Mitosis and Cell Division. If these did not help you, you are welcome to have a look at other tutorials, videos, or interactive websites, such as: http://www.cellsalive.com/mitosis.htm.
Find out what the difference is between mitosis and meiosis. Include this in your blog post by including links or videos that you used or images in discovering what the main differences are.
VIDEO EXAMPLE:
Pages in your textbook you may use are: 55-60 and pages 94-96 (Remember: You may use the Sci-Links as well).
