Understanding our genetics make-ups really gives us a better understanding our world. DNA contains the code that makes us who we are. But who are we compared to other people all over the globe?
Class discussion:
Think about the context in this video. These volunteers, who underwent DNA extraction just like you did last week, come from all over Europe and the Middle East.
How did this video make you feel?
What did you learn from this video that you didn't know before?
On average, in terms of DNA sequence, each human is 99.5% similar to any other human. If all humans understood this, how might the world be different?
Your Genes:
In your journal, write 1-10 and answer yes or no to each of the survey questions. Write the label Genetics Inventory on a new page and in your table of contents.
Next, use the table handout to tally up survey results for each person at your table.
Then, draw a graph in your journal that represents the number of traits students at your table share. The X-Axis should represent traits. The Y-Axis should represent the number of students. Name the graph so an audience could understand the purpose of the data.
Extend:
If we have time, we will end class with a PTC test. This graphic explains what the test is and how the body processes the test. Answer the questions below based on the graphic in your journal.
1. What determines a person's ability to taste PTC?
2. How many copies of every gene do people have?
3. Review: Which part of our body sends signals to the brain when gustatory cells are stimulated by a bitter taste? Central nervous system or peripheral nervous system?