Name: _______________________________ Period: _____ Date: ________________________
Self Assessment: Ch 11, so far
1. The hornless condition (H) in cattle is dominant to horned (h). A hornless bull was
mated to a hornless cow. The offspring was born with horns.
a. What are the parents genotypes ____________ x____________
b. Show the Punnett Square
c. List all possible genotypes and percentages (genotypic ratio)
d. List all possible phenotypes and percentages (phenotypic ratio)
e. What type of inheritance is this?______________________
2. A pure-bred red bull (R) is mated with a pure-bred white cow (r) and produce
offspring that is both red and white (Rr) or roan. What would the offspring look
like if two roan mated?
a. What are the parents Genotypes ____________ x____________
b. Show the Punnett Square
c. List all possible genotypes and percentages (genotypic ratio)
d. List all possible phenotypes and percentages (phenotypic ratio)
e. What type of inheritance is this?______________________
3. SpongeBob loves growing flowers for his pal Sandy! Her favorite flowers, Poofkins,
are found in red (R), blue(r), and purple (Rr).What would happen if SpongeBob
crossed a Poofkin with red flowers with one with blue flowers?
a. What are the parents Genotypes ____________ x____________
b. Show the Punnett Square
c. List all possible genotypes and percentages (genotypic ratio)
d. List all possible phenotypes and percentages (phenotypic ratio)
e. What type of inheritance is this?______________________
4. Poofkins come with even numbered (E) or odd numbered (e) of flowers per plant.
What would happen if SpongeBob crossed a Poofkin with an odd number of red
flowers with one with with an even number (heterozygous) of purple flowers?
a. What are the parents Genotypes ____________ x____________
b. Show the Punnett Square
c. List all possible genotypes and
percentages (genotypic ratio)
d. List all possible phenotypes and
percentages (phenotypic ratio)
Name: _______________________________ Period: _____ Date: ________________________
Self Assessment: Ch 11, so far
1. The hornless condition (H) in cattle is dominant to horned (h). A hornless bull was
mated to a hornless cow. The offspring was born with horns.
Hh_ x__ Hh __
a. What are the parents genotypes _
b. Show the Punnett Square
H h
H HH Hh
h Hh hh
c. List all possible genotypes and percentages (genotypic ratio)
HH
25%
Hh
50%
hh
25%
d. List all possible phenotypes and percentages (phenotypic ratio)
hornless
75%
horned
25%
simple dominance__
e. What type of inheritance is this?_
2. A pure-bred red bull (R) is mated with a pure-bred white cow (r) and produce
offspring that is both red and white (Rr) or roan. What would the offspring look
like if two roan mated?
a. What are the parents Genotypes __
b. Show the Punnett Square
Rr__ x__Rr__
R r
R RR Rr
r Rr rr
c. List all possible genotypes and percentages (genotypic ratio)
RR
25%
Rr
50%
rr
25%
d. List all possible phenotypes and percentages (phenotypic ratio)
red
25%
roan
50%
e. What type of inheritance is this?__
white
25%
codominance_
3. SpongeBob loves growing flowers for his pal Sandy! Her favorite flowers, Poofkins,
are found in red (R), blue(r), and purple (Rr).What would happen if SpongeBob
crossed a Poofkin with red flowers with one with blue flowers?
a. What are the parents Genotypes _
b. Show the Punnett Square
r
r
R
Rr
Rr
RR_ x__rr__
R
Rr
Rr
c. List all possible genotypes and percentages (genotypic ratio)
RR
0%
Rr
100%
rr
0%
d. List all possible phenotypes and percentages (phenotypic ratio)
red
0%
purple
100%
blue
0%
incomplete dominance__
e. What type of inheritance is this?_
4. Poofkins come with even numbered (E) or odd numbered (e) of flowers per plant.
What would happen if SpongeBob crossed a Poofkin with an odd number of red
flowers with one with with an even number (heterozygous) of purple flowers?
eeRR_ x _EeRr_
a. What are the parents Genotypes _
b. Show the Punnett Square
c. List all possible genotypes and
percentages (genotypic ratio)
25%
25%
25%
25%
EeRR
EeRr
eeRR
eeRr
eR
ER
EeRR
Er
EeRr
eR
eeRR
er
eeRr
d. List all possible phenotypes and
percentages (phenotypic ratio)
25%
25%
25%
25%
even #, red
even #, purple
odd #, red
odd #, purple