Bio 150 Exam 1 - UTK Mamantov (2026) EXAM || MOST RECENT
EXAM 2026-2027 ACTUAL COMPLETE REAL EXAM QUESTIONS
AND CORRECT ANSWERS (VERIFIED ANSWERS) ALREADY
GRADED A+ | GUARANTEED SUCCESS!! NEWEST EXAM | JUST
RELEASED!!
In analyzing the number of different bases in a DNA sample,
which result would
be consistent with the base-
pairing rules?
A: A/T =
C/G
B: A =
G
C: A + T = G +
T
D: G =
T
E: C = A -
ANSWER -A
A population of the endangered Tennessee cone flower
consists of 15 individuals.
There are two alleles in the population that determine the
alcohol
,dehydrogenase enzyme: a1
and a2 In the population,
there's:
10 a1 a1 homozygotes
1 a1 a2 heterozygote
4 a2 a2 homozygotes
What is the frequency of the a1 allele? - ANSWER -70%
If p = 0.7, what is the expected frequency of the
homozygous recessive
genotype if the population is in Hardy-Weinberg
equilibrium?
*p = frequency of dominant allele - ANSWER -0.09
Examine the following population. Has evolution occurred?
Start: population consists of 4 AA, 8 Aa, and 3 aa
individuals
End: population consists of 1 AA, 14 Aa, and 0 aa individuals
- ANSWER –No
Which of the following questions about dung beetles would
be studied at the
population level of biological
organization?
A: How do dung beetles of different species compete for
access to dung food sources?
,B: What gene is responsible for determining the horn
phenotype in the dung beetle species, O. taurus?
C: How does the recycling of dung by beetles impact the
carbon cycle on cattle fields?
D: How does the percentage of horned males vary in O. taurus
beetles living in different geographic areas? - ANSWER -D
When an organism is better able to survive in an
environment due to a new
mutation we can
conclude:
A: the mutation occurred in response to the environment in
order to improve
survivorship
B: this could not happen; mutations are always
deleterious
C: the mutation occurred at random with respect to the
phenotypic change it
caused
D: the mutation must have been a chromosomal insertio
- ANSWER -C
For biologists studying a large flatworm population in the
lab, which of the
following Hardy-Weinberg conditions is most
difficult to meet?
A: No genetic drift
, B: No gene flow
C: No mutation
D: Random mating - ANSWER -C
When nonrandom mating occurs in a population so that
individuals prefer to
mate with similar individuals, allele
frequencies should:
A: remain the same, but homozygotes will be overrepresented
in the population B: remain the same, but heterozygotes will be
overrepresented in the population.
C: change and heterozygotes will be overrepresented in
the population D: change and homozygotes will be
overrepresented in the population. E: remain the same,
and genotype frequencies remain at Hardy-Weinberg
equilibrium. - ANSWER -A
The Dunkers are a religious group that moved from Germany to
Pennsylvania in
the mid 1700s. They do not marry members outside their
own immediate
community. Today, the Dunkers are genetically unique and
differ in gene
frequencies, at many loci, from all other populations,
including those in their
original homeland. Which of the following likely explains the
genetic uniqueness
EXAM 2026-2027 ACTUAL COMPLETE REAL EXAM QUESTIONS
AND CORRECT ANSWERS (VERIFIED ANSWERS) ALREADY
GRADED A+ | GUARANTEED SUCCESS!! NEWEST EXAM | JUST
RELEASED!!
In analyzing the number of different bases in a DNA sample,
which result would
be consistent with the base-
pairing rules?
A: A/T =
C/G
B: A =
G
C: A + T = G +
T
D: G =
T
E: C = A -
ANSWER -A
A population of the endangered Tennessee cone flower
consists of 15 individuals.
There are two alleles in the population that determine the
alcohol
,dehydrogenase enzyme: a1
and a2 In the population,
there's:
10 a1 a1 homozygotes
1 a1 a2 heterozygote
4 a2 a2 homozygotes
What is the frequency of the a1 allele? - ANSWER -70%
If p = 0.7, what is the expected frequency of the
homozygous recessive
genotype if the population is in Hardy-Weinberg
equilibrium?
*p = frequency of dominant allele - ANSWER -0.09
Examine the following population. Has evolution occurred?
Start: population consists of 4 AA, 8 Aa, and 3 aa
individuals
End: population consists of 1 AA, 14 Aa, and 0 aa individuals
- ANSWER –No
Which of the following questions about dung beetles would
be studied at the
population level of biological
organization?
A: How do dung beetles of different species compete for
access to dung food sources?
,B: What gene is responsible for determining the horn
phenotype in the dung beetle species, O. taurus?
C: How does the recycling of dung by beetles impact the
carbon cycle on cattle fields?
D: How does the percentage of horned males vary in O. taurus
beetles living in different geographic areas? - ANSWER -D
When an organism is better able to survive in an
environment due to a new
mutation we can
conclude:
A: the mutation occurred in response to the environment in
order to improve
survivorship
B: this could not happen; mutations are always
deleterious
C: the mutation occurred at random with respect to the
phenotypic change it
caused
D: the mutation must have been a chromosomal insertio
- ANSWER -C
For biologists studying a large flatworm population in the
lab, which of the
following Hardy-Weinberg conditions is most
difficult to meet?
A: No genetic drift
, B: No gene flow
C: No mutation
D: Random mating - ANSWER -C
When nonrandom mating occurs in a population so that
individuals prefer to
mate with similar individuals, allele
frequencies should:
A: remain the same, but homozygotes will be overrepresented
in the population B: remain the same, but heterozygotes will be
overrepresented in the population.
C: change and heterozygotes will be overrepresented in
the population D: change and homozygotes will be
overrepresented in the population. E: remain the same,
and genotype frequencies remain at Hardy-Weinberg
equilibrium. - ANSWER -A
The Dunkers are a religious group that moved from Germany to
Pennsylvania in
the mid 1700s. They do not marry members outside their
own immediate
community. Today, the Dunkers are genetically unique and
differ in gene
frequencies, at many loci, from all other populations,
including those in their
original homeland. Which of the following likely explains the
genetic uniqueness
