Hair present between second
Hair on knuckles and third knuckle of fingers 7
No hair present between second and third knuckle of fingers 13
Hair Line
(widow’s peak vs. straight hair line) Widow’s peak
11
Straight hair line 9
Hair texture
Curly hair (count wavy hair as 4 curly) Straight hair
16
Chin shape (no cleft chin vs. cleft chin)
Cleft chin
No cleft chin
18
2
FAMILY MEMBERS /DATA TABLE
Family
Member
Earlobes
Hair on
Knuckles
Hair Line
Father
Attached
yes
Widows peak straight
cleft
Mother
Attached
no
Straight
no cleft
Offspring 1
Attached
yes
Widows peak curly
Hair Texture
straight
Chin Shape
no cleft
PERCENT'S
Feature
Trait
Calculated
Percentage
Trait
Calculated
Percentage
Earlobes
Free Earlobes
15%
Attached
Earlobes
85%
Hair on knuckles
Hair present between second and third knuckle of fingers 35%
No hair present between second and third knuckle of fingers 65%
Hair Line
(widow's peak vs. straight hair line) Widow's peak
55%
Straight hair line
45%
Hair texture
Curly hair (count wavy hair as 20% curly) Straight hair
80%
Chin shape (no cleft chin vs. cleft chin)
Cleft chin
No cleft chin
90%
10%
CONCLUSION/REFECTION
QUESTIONS
• I think these are the dominant features because in most families when one parent had one of these features, the offspring had that feature as well. The dominant features are: Attached Earlobes, No hair on Knuckles,
Widow's Peak, Straight Hair, and No Cleft Chin.
• I only have one recessive feature, and that is attached earlobes . My whole family has a tendency to have attached earlobes .
• The family that I surveyed there offspring shared most of the features that were dominate but when it came to hair style both mom and dad had straight hair but the offspring had curly hair.
