1. Investigating Human Traits
Genetics
Investigating Human Traits

2. Investigating Human Traits 2/14/13
Key Question: What do we inherit from our parents? Initial Thoughts:

3. Characteristic vs. Trait
Characteristic - i.e. Eye Color
Trait - different versions of a characteristic; i.e. brown, blue, green
How much variation is shown in our class?

4. Evidence: Trait Survey
Tongue rolling
Wiggle your ears
Finger crossing
Hitchhikers thumb
Paper tasting
Freckles
Height
Cleft chin
Widow’s peak
Eye color
Attached earlobes

5. Trait Table Traits: Tongue Rolling

6. Trait Table Traits: Thumb Position

7. Trait Table Traits: Widow’s Peak
No peak!

8. Trait Table Traits: Not Attached vs. Attached Earlobes

9. Trait Table Traits: Hitchhiker’s Thumb

10. Trait Table Traits: Freckles on Face

11. Cleft Chin

12. Human Traits
Number of People
Traits

13. Analysis Questions What is the conclusion of your graph?
What would happen if you were able to ask more people?
List your individual traits in the following chart:
Characteristic
Traits
Number of traits
Eye Color
Tongue Rolling
Finger Crossing
PTC tasting
Height
Arm Span

14. Summary
What did you think about the variation of human traits before this lesson?
What does your evidence show you that you learned about the variation of human traits?
What are some thoughts or questions you have about human traits?

15. Reflection
Create an analogy for characteristics and traits.

16. Big Idea