Genetics With A Smile Adapted From Genetics With A Smile By T

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Name: ____________________________________________ Date: _______
Period: ____
GENETICS WITH A SMILE
Part A: Smiley Face Traits
1. Using 2 coins, you and your partner will each represent one parent in this lab. The oldest person in your
group will be the “male” and the youngest person in your group will be the “female”.
2. For each trait, flip the coin for the parent you represent.
- If the coin lands with heads up, it represents a dominant allele.
- If the coin lands tails up it indicates a recessive allele.
3. Record the result for each parent by circling the correct allele (letter). Use the results and the Smiley
Face. Traits page to determine the genotype and phenotype for each trait.
TRAIT
FEMALE
MALE
GENOTYPE
PHENOTYPE
Face Shape
C
c
C
c
Eye Shape
E
e
E
e
Hair Style
S
s
S
s
Smile
T
t
T
t
Ear Style
V
v
V
v
Nose Style
D
d
D
d
Face Color
Y
y
Y
y
Eye Color
B
b
B
b
Hair Length
L
l
L
l
Freckles
F
f
F
f
Nose Color
R
r
R
r
Ear Color
P
p
P
p
Part B: Is it a boy or girl?
To determine the sex of your smiley face, flip the coin for the male parent. Heads would represent X, while tails
would be Y.
FEMALE
MALE
GENOTYPE
PHENOTYPE
SEX
X
X
X
Y

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