1. The Genetics of Angry Birds
Laboratory Activity 3:
The Genetics of Angry Birds

2. Meet Mom Beak is small and downward Recessive (bb)
**Eyebrows** are thick
Dominant (EE)
Bags under eyes are absent
Recessive (pp)
Tail feather # = 3
Dominant (Tt)
Tail feather length is short
Dominant (Ll)
Belly color is white
Dominant (Ww)
**Body color** is red
Dominant (CC)
Head feather # = 2
Dominant (Hh)
**Skill** is attack
Dominant (SS)

3. Meet Dad Beak is large and pointed Dominant (Bb)
**Eyebrows** are absent
Recessive (ee)
Bags under eyes are present
Dominant (Pp)
Tail feather # = 2
Recessive (tt)
Tail feather length is short
Dominant (Ll)
Belly color is same as body color
Recessive (ww)
**Body color** is blue
Recessive (cc)
Head feather # = 2
Dominant (Hh)
**Skill** is multiply
Recessive (ss)

4. Trait
Mom
Dad
Baby Bird Genotype
Baby Bird Phenotype
Beak
b b
B b
**Eyebrows**
E E
e e
Bags Under Eyes
Tail Feather #
T t
t t
Tail Feather Length
L l
Belly Color
W w
w w
**Body Color**
C C
c c
Head Feather #
H h
**Skill**
S S
s s
**These traits show incomplete dominance!**

6. Trait Mom Dad Baby Bird Genotype Baby Bird Phenotype
Beak
b b
B b
50% Bb, 50% bb
50% big beak, pointed, 50% sm beak, downward
**Eyebrows**
E E
e e
100% Ee
100% have eyebrows
Bags Under Eyes
50% Bb, 50%bb
50% have bags, 50% do not
Tail Feather #
T t
t t
50% Tt, 50% tt
50% have 3 tail feathers, 50% have 2 tail feathers
Tail Feather Length
L l
25% LL, 50% Ll, 25% ll
75% have short tail feathers, 25% have long tail feathers
Belly Color
W w
w w
25% Ww, 75% ww
25% white belly, 75% same color as body

7. 75% 2 head feathers, 25% (no head feathers?)
Trait
Mom
Dad
Baby Bird Genotype
Baby Bird Phenotype
**Body Color**
C C
c c
100% Cc
100% red birds
Head Feather #
H h
25%HH, 50%Hh, 25%hh
75% 2 head feathers, 25% (no head feathers?)
**Skill**
S S
s s
100%Ss
100% attack skill
**These traits show incomplete dominance!**

8. Bonus project:
Draw the family tree of the birds and their possible babies!