Do you have these Traits? Attached Earlobes Tongue Rolling Dimples Right-Handed Freckles Straight...
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Transcript of Do you have these Traits? Attached Earlobes Tongue Rolling Dimples Right-Handed Freckles Straight...
Do you have these Traits?
• Attached Earlobes• Tongue Rolling• Dimples• Right-Handed• Freckles• Straight Hair• Cleft Chin• Allergies• Hitchhikers Thumb• Widow’s Peak
Problem• Are dominant traits or recessive traits
more common?
Hypothesis• If people are surveyed about their traits, then we will learn…
– Dominant traits are more common– More people have traits that are recessive– Etc.
Inventory of Traits Lab
Method
1. Take Survey.
2. Graph the class results of the survey.
3. Survey 10 people outside class.
4. Graph Results
DataTrait Answer Class
YesClass
No
Attached Earlobes
Tongue Rolling
Dimples
Right-Handed
Freckles
Straight Hair
Cleft Chin
Allergies
Hitchhikers Thumb
Widow’s peak
Class Graph
Atta
ched
E
arlo
bes
To
ngu
e Ro
lling
Dim
ples
Rig
ht Ha
nde
d
Fre
ckles
Straig
ht Ha
ir
Cle
ft Ch
in
Alle
rgie
s
Hitch
hike
r’s T
hum
b
Wido
w’s P
eak
Nu
mb
er of S
tud
ents in
Cla
ss w
ith Tra
it
Dominant or RecessiveTrait (Phenotype) Dominant or
RecessivePossible Genotype
Attached Earlobes
Tongue Rolling
Dimples
Right-Handed
Freckles
Straight Hair
Cleft Chin
Allergies
Hitchhikers Thumb
Widow’s peak
Recessive
Dominant
DominantDominant
Dominant
Recessive
Dominant
Not determined
RecessiveDominant