1. Traits to put on a Family Pedigree (simple dominant and recessive)

2. ATTACHED / UNATTACHED EARLOBES
DOMINANT
RECESSIVE

3. ROLLING YOUR TONGUE
ROLLER
NONROLLER
DOMINANT
RECESSIVE

4. WIDOW’S PEAK
WIDOW’S PEAK
STRAIGHT HAIRLINE
DOMINANT
RECESSIVE

5. HITCHHIKER’S THUMB DOMINANT RECESSIVE STRAIGHT THUMB

6. PINKIES
BENT PINKIES
STRAIGHT PINKIES
DOMINANT
RECESSIVE

7. CLEFT CHIN
CLEFT
NO CLEFT
DOMINANT
RECESSIVE

8. SECOND TOES
LONGER SECOND TOE
SHORTER SECOND TOE
DOMINANT
RECESSIVE

9. SIX FINGERS: POLYDACTYLY
NUMBER OF FINGERS
SIX FINGERS: POLYDACTYLY
FIVE FINGERS
DOMINANT!!!!
RECESSIVE

10. Section 12.1 Summary – pages 309 - 314
A family tree traces a family name and various family members through successive generations.
Through a family tree, you can identify the relationships among your cousins, aunts, uncles, grandparents, and great-grandparents.
Section 12.1 Summary – pages

11. Section 12.1 Summary – pages 309 - 314
A pedigree is a family tree that traces an inherited trait.
It is made up of a set of symbols that identify males and females, individuals affected by the trait being studied, and family relationships.
Section 12.1 Summary – pages

12. Section 12.1 Summary – pages 309 - 314
Pedigree Symbols
Ended Relationship Line
Male
Relationship Line
Female
Parent/Children Line
Affected male
Affected female
Male carrier of a recessive trait
Female carrier of a recessive trait
Section 12.1 Summary – pages

13. The generations are identified in sequence by Roman numerals
Each individual is given a number. It always begins back at #1 for each generation, moving left to right.

14. Websites on dominant and rec. traits.
Pick one: Attached/Free Ear lobes,
Hitch-hiker’s thumb,
cleft chin,
dimples,
Curling tongue,
Widow’s Peak,
Longer second toe,
nearsighted (rec),
farsighted (dom.),
double jointedness (dom.),
right (dom.) or left (rec.) handedness,
freckles…..
***If there is another trait that runs in your family and you would like to use that for your project, please make sure to get it approved before beginning the project.