1. Dominant and Recessive Traits

2. What are traits? Physical Traits Acquired Traits Behavioral Traits
Can be seen by others
Eye color, hair color, height, left handed
Acquired Traits
Learned skills
Playing a sport, riding a bike, playing a musical instrument
Behavioral Traits
Instinctual actions
Nest building and migration

3. What traits do you have?
We will go through the most common traits that people have
On your sheet, record if you have the mentioned trait or not
You may have to ask your neighbor for help 

4. Detached (EE, Ee) or attached (ee) Earlobes

5. Can Tongue Roll (TT, Tt) or Can’t (tt)

6. Dimples (DD, Dd) No Dimples (dd)

7. Right (RR, Rr) or Left (rr) handed?

8. Freckles (FF, Ff) No Freckles (ff)

9. Curly (HH, Hh) or Straight (hh)

10. Cleft Chin (CC, Cc) or No Cleft (cc)

11. Allergies (AA, Aa) or No Allergies (aa)

12. Hand Clasp Right over Left?

13. Normal (BB, Bb) Color Blindness (bb)
Can you see the number inside the circle?
If you cannot, you may be colorblind

14. Widow’s Peak (WW, Ww) or Straight (ww)

15. Data
We will now record our class data and graph our results.

16. How do you compare?
Compare your data to that of the general population.
Which frequency was the most surprising to you?
What about the whole 5th grade?
Example: # of students with the trait/# of students in the class x 100 = _____%
12/24 x 100 = 50%

17. Ticket out the door…
Do you think that more common traits are “better” than less common traits? Why or why not?