BIO 340 FINAL EXAM VERSION C -
COMPLETE QUESTIONS AND DETAILED SOLUTIONS
LATEST UPDATE THIS YEAR JUST RELEASED
Question 1: A recessive trait will be observed in individuals that are
________ for that trait.
A. heterozygous
B. homozygous or heterozygous
C. homozygous
D. diploid
Answer:
c. homozygous
Question 2: What are the types of gametes that can be produced by
an individual with the genotype AaBb?
A. Aa, Bb
B. AA, aa, BB, bb
C. AB, Ab, aB, ab
D. AB, ab
Answer:
c. AB, Ab, aB, ab
Question 3: How many different types of gametes could an
organism with the genotype AABbCc produce?
A. 3
B. 4
C. 5
, D. 6
E. 8
Answer:
b. 4
Question 4: Genetic inheritance is being studied in a certain
species of plant in which orange flower color (O) is dominant to
white (o) and round leaf shape (S) is dominant to oval (s). A
true-breeding orange-flowered, round-leaved male plant (Plant A) is
mated with a true-breeding white-flowered, oval-leaved female plant
(Plant B) to produce dihybrid offspring plant (Plant C). Assuming
normal Mendelian genetics and independent inheritance of these
two traits, which gametes might be produced by Plant C?
A. OoSs
B. OS
C. oS
D. Both OS and oS
E. Both OoSs and OS
Answer:
d. Both OS and oS
Question 5: In guinea pigs coat color is determined by a single
gene with two alleles. A guinea pig from a true-breeding black
strain is mated with a guinea pig from a true-breeding white strain.
The F1 progeny are all black. Two of the F1 progeny are mated with
each other. What proportion of the F2 progeny is expected to be
white?
A. 1/2
B. 1/3
C. 1/4
, D. 3/4
Answer:
c. 1/4
Question 6: In guinea pigs coat color is determined by a single
gene with two alleles. A guinea pig from a true-breeding black
strain is mated with a guinea pig from a true-breeding white strain.
The F1 progeny are all black. Two of the F1 progeny are mated with
each other. What proportion of the black F2 progeny is expected to
be homozygous?
A. 1/2
B. 1/3
C. 1/4
D. 3/4
Answer:
b. 1/3
Question 7: The presence of short hairs on leaves is controlled by
dominant allele H. Plants with genotype hh have smooth leaves.
Two parental plants with unknown genotype were crossed. What
are the parental genotypes if F1= 32 Hairy and 11 smooth?
A. HH x hh
B. Hh x hh
C. Hh x Hh
D. hh x hh
E. HH x HH
Answer:
c. Hh x Hh
COMPLETE QUESTIONS AND DETAILED SOLUTIONS
LATEST UPDATE THIS YEAR JUST RELEASED
Question 1: A recessive trait will be observed in individuals that are
________ for that trait.
A. heterozygous
B. homozygous or heterozygous
C. homozygous
D. diploid
Answer:
c. homozygous
Question 2: What are the types of gametes that can be produced by
an individual with the genotype AaBb?
A. Aa, Bb
B. AA, aa, BB, bb
C. AB, Ab, aB, ab
D. AB, ab
Answer:
c. AB, Ab, aB, ab
Question 3: How many different types of gametes could an
organism with the genotype AABbCc produce?
A. 3
B. 4
C. 5
, D. 6
E. 8
Answer:
b. 4
Question 4: Genetic inheritance is being studied in a certain
species of plant in which orange flower color (O) is dominant to
white (o) and round leaf shape (S) is dominant to oval (s). A
true-breeding orange-flowered, round-leaved male plant (Plant A) is
mated with a true-breeding white-flowered, oval-leaved female plant
(Plant B) to produce dihybrid offspring plant (Plant C). Assuming
normal Mendelian genetics and independent inheritance of these
two traits, which gametes might be produced by Plant C?
A. OoSs
B. OS
C. oS
D. Both OS and oS
E. Both OoSs and OS
Answer:
d. Both OS and oS
Question 5: In guinea pigs coat color is determined by a single
gene with two alleles. A guinea pig from a true-breeding black
strain is mated with a guinea pig from a true-breeding white strain.
The F1 progeny are all black. Two of the F1 progeny are mated with
each other. What proportion of the F2 progeny is expected to be
white?
A. 1/2
B. 1/3
C. 1/4
, D. 3/4
Answer:
c. 1/4
Question 6: In guinea pigs coat color is determined by a single
gene with two alleles. A guinea pig from a true-breeding black
strain is mated with a guinea pig from a true-breeding white strain.
The F1 progeny are all black. Two of the F1 progeny are mated with
each other. What proportion of the black F2 progeny is expected to
be homozygous?
A. 1/2
B. 1/3
C. 1/4
D. 3/4
Answer:
b. 1/3
Question 7: The presence of short hairs on leaves is controlled by
dominant allele H. Plants with genotype hh have smooth leaves.
Two parental plants with unknown genotype were crossed. What
are the parental genotypes if F1= 32 Hairy and 11 smooth?
A. HH x hh
B. Hh x hh
C. Hh x Hh
D. hh x hh
E. HH x HH
Answer:
c. Hh x Hh
