Download Genotype and Phenotype Activity

Genotype and Phenotype Activity
The following list details specific characteristics of a human and the imaginary genes that
represent them. Use the information below to determine the phenotype (physical
characteristics) of our imaginary person.
C-dominant for dark skin color
c-recessive for dark skin color
A-dominant for light skin color
a-recessive for light skin color
M-dominant for no freckles
m-recessive for no freckles
F-dominant for freckles
f-recessive for freckles
D-dominant for dark hair
d-recessive for dark hair
E-dominant for light hair
e-recessive for light hair
P-dominant for dimples
p-recessive for dimples
Q-dominant for no dimples
q-recessive for no dimples
B-dominant for brown eyes
b-recessive for brown eyes
G-dominant for green eyes
g-recessive for green eyes
Z-dominant for short eyelashes
z-recessive for short eyelashes
R-dominant for long eyelashes
r-recessive for long eyelashes
X-female gene
Y-male gene
S-dominant for curved eyes
s-recessive for curved eyes
N-dominant for big nose
n-recessive for big nose
J-dominant for little nose
j-recessive for little nose
I-dominant for thin eyebrows
i-recessive for thin eyebrows
T-dominant for thick eyebrows
t-recessive for thick eyebrows
L-dominant for large lips
l-recessive for large lips
K-dominant for small lips
k-recessive for small lips
O-dominant for bad eyesight (glasses)
o-recessive for bad eyesight (glasses)
H-dominant for straight hair
h-recessive for straight hair
W-dominant for wavy hair
w-recessive for wavy hair
U-dominant for dimple on chin
u-recessive for dimple on chin
Genotype and Phenotype Activity
Directions:
 Look at the gene (letter) on the card given to you by the teacher.
 Find the trait that the gene codes for by using the information on the other side of
this sheet.
 When you are instructed, walk around the room and find the person that has the
other gene (letter) that codes for the same trait as your gene codes for. Use the
information sheet on the back to help you determine which letters you might be
looking for.
 When you find your partner, the two of you sit down and determine the particular
trait that the imaginary person will have (brown eyes, green eyes, wavy hair,
dimples, etc.)
 Go back to your seat and wait for the teacher’s instructions.
Use the space below to write down the traits of the imaginary person: