This document provides instructions for a winter break assignment on physical traits. Students are asked to copy a chart listing common genes and physical traits into their notebooks. They are then instructed to survey ten people for each gene/trait listed and record whether the trait is expressed. The traits include tongue rolling, ear lobe attachment, hand clasping, color blindness, hitchhiker's thumb, widow's peak, and mid-digit hair. Students are told to try surveying relatives or family members.

2. Physical
Traits

3. Physical
Traits
Winter Break Assignment
Life Science 08-09

5. FOLD A PIECE OF PAPER HOTDOG STYLE IN
YOUR NOTEBOOK, BUT KEEP IT IN YOUR
NOTEBOOK!

6. COPY THE FOLLOWING CHART INTO YOUR
NOTEBOOK

7. COPY THE FOLLOWING CHART INTO YOUR
NOTEBOOK
GENES PEOPLE
SURVEYED
TONGUE ROLL
EAR LOBES
INTERLOCKING
FINGERS
COLOR BLINDNESS
HITCHHIKERS
THUMB
WIDOW!S PEAK
MID-DIGIT HAIR

8. • Dominant Genes= Capital
Letters
• Recessive Genes= Lower Case
Letters

9. • TT= Dominant Trait is
Visible.
• Tt= Dominant Trait is
Visible
• tt= Recessive Trait is
Visible

10. Tongue Roll

11. Tongue Roll

12. Tongue Roll
Rolled Tongue is Dominant
T=Rolled Tongue
tt= No Tongue Roll

13. EAR LOBES

14. EAR LOBES

15. EAR LOBES
UNATTACHED

16. EAR LOBES
UNATTACHED

17. EAR LOBES
UNATTACHED ATTACHED

18. EAR LOBES
UNATTACHED ATTACHED
UNATTACHED IS
DOMINANT= E

19. Interlocking Fingers

20. Interlocking Fingers

21. Interlocking Fingers
Left over Right

22. Interlocking Fingers
Left over Right Right over left

23. Interlocking Fingers
Left over Right Right over left
Left over Right is Dominant
LEFT=I

24. Color Blindness

25. Color Blindness

26. Color Blindness
Not Color Blind is Dominant
C

27. Hitchhikers Thumb
Yes No

28. Hitchhikers Thumb
Yes No

29. Hitchhikers Thumb
Yes No

30. Hitchhikers Thumb
Yes No
Hitchhikers Thumb is Dominant
Yes = J

31. Widow’s Peak
YES NO

32. Widow’s Peak
YES NO

33. Widow’s Peak
YES NO

34. Widow’s Peak
YES NO
Widow’s Peak is Dominant
W

35. Mid-Digit Hair
Mid-Digit Hair

36. Mid-Digit Hair
Mid-Digit Hair

37. Mid-Digit Hair
Mid-Digit Hair
Hair is Dominant
H

39. • TEN people for each Gene!

40. • TEN people for each Gene!
• Try to do relatives/family.

41. • TEN people for each Gene!
• Try to do relatives/family.
• Record clearly who it is.

42. • TEN people for each Gene!
• Try to do relatives/family.
• Record clearly who it is.
• DUE THE DAY YOU
GET BACK!

44. HAVE A NICE WINTER
BREAK!