1. Phenotype and Genotype
Trait
Dominant gene
Recessive gene
Body shape
Squarepants (S)
Roundpants (s)
Body color
Yellow (Y)
Blue (y)
Eye shape
Round (R)
Oval (r)
Nose style
Long (L)
Stubby (l)
1.Use the information for SpongeBob’s traits to write the phenotype for each item.
a. LL –
b. yy -
c. Ss -
d. RR –
e. Rr -
f. ll -
g. ss –
h. Yy -

2. Phenotype and Genotype
Trait
Dominant gene
Recessive gene
Body shape
Squarepants (S)
Roundpants (s)
Body color
Yellow (Y)
Blue (y)
Eye shape
Round (R)
Oval (r)
Nose style
Long (L)
Stubby (l)
2.Use the information for SpongeBob’s traits to write the genotype (s) for each
item.
a. Yellow body -
e. Stubby nose –
b. Round pants -
f. Round eyes –
c. Oval eyes -
g. Square pants -

3. 3. Determine the phenotype for each
genotype using the information provided
about SpongeBob.
Yellow body color is dominant to blue.
YY _________ Yy ________ yy ________
Square shape is dominant to round.
SS _________ Ss ________ ss _________

4. 4. For each phenotype, give the genotype that
are possible for Patrick.
A tall head (T) is dominant to short (t)
Tall = _______________________
Short = ______________________
Pink body color (P) is dominant to yellow (p)
Pink body = ________________________
Yellow body = ______________________

5. Phenotype and Genotype
Trait
Dominant gene
Recessive gene
Body shape
Squarepants (S)
Roundpants (s)
Body color
Yellow (Y)
Blue (y)
Eye shape
Round (R)
Oval (r)
Nose style
Long (L)
Stubby (l)
Use the information for SpongeBob’s traits to write the genetypes for each item.
17. Heterozygouse round eyes –
18. Homozygous long nose -
19. Purebred squarepants -
20. Hybrid yellow body -

6. Phenotype and Genotype
Trait
Dominant gene
Recessive gene
Body shape
Squarepants (S)
Roundpants (s)
Body color
Yellow (Y)
Blue (y)
Eye shape
Round (R)
Oval (r)
Nose style
Long (L)
Stubby (l)
Use the information for SpongeBob’s traits to write the genetypes for each item.
17. Heterozygouse round eyes –
18. Homozygous long nose -
19. Purebred squarepants -
20. Hybrid yellow body -