Page 1 of 106
BIO 182 FINAL Exam 2 VERSIONS ALL QUESTIONS
AND CORRECT ANSWERS LATEST UPDATE THIS
YEAR NEW!!
BIO 182 FINAL Exam
QUESTION: DDT was once considered a "silver bullet" that would permanently eradicate insect
pests. Today, instead, DDT is largely useless against many insects. What would need to be true
for pest eradication efforts to have been successful in the long run?
a. Larger doses of DDT should have been applied.
b. All individual insects should have possessed genomes that made them susceptible to DDT.
c. DDT application should have been continual.
d. The frequency of DDT application should have been higher.
e. All habitats should have received applications of DDT at about the same time. - ANSWER-b.
All individual insects should have possessed genomes that made them susceptible to DDT.
QUESTION: Which of these evolutionary agents is most consistent at causing populations to
become better suited to their environments over the course of generations?
1
,Page 2 of 106
a. Natural selection
b. Mutation
c. Non-random mating
d. Genetic drift
e. Gene flow - ANSWER-a. Natural selection
In peas, a gene controls flower color such that R = purple is dominant to r= white. In an isolated
pea patch, there are 36 purple-flowering plants and 64 white-flowering plants. Assuming Hardy-
Weinberg equilibrium, what is the value of q(frequency of r) for this population?
a. 0.64
b. 0.36
c. 0.60
d. 0.75
e. 0.8 - ANSWER-e. 0.8
2
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QUESTION: It has been observed that organisms on islands are different from, but closely
related to, similar forms found on the nearest continent. This is taken as evidence that
a. island forms and mainland forms have identical gene pools.
b. common environments are inhabited by the same organisms.
c. the island forms and mainland forms are converging.
d. island forms and mainland forms descended from common ancestors.
d. the islands were originally part of the continent. - ANSWER-d. island forms and mainland
forms descended from common ancestors.
QUESTION: In binomial nomenclature where humans are : Homo sapiens, Homo is the:
a. order
b. species
c. genus
d. class
e. family - ANSWER-c. genus
3
, Page 4 of 106
QUESTION: What evidence is there to support that the mitochondria was formed before
chloroplasts in an early eukaryotic cell ? - ANSWER-1. mitochondria and chloroplasts contain
their own DNA
2. All eukaryotic cells have mitochondria but not all of them have chloroplasts
3. The DNA in mitochondria and chloroplasts can replicate themselves
QUESTION: Which of the following is the correct sequence of these events in the origin of life?
1. formation of protocells
2. synthesis of organic monomers
3. synthesis of organic polymers
4. formation of DNA-based genetic systems - ANSWER-II, III, I, IV
QUESTION: The theory of evolution is most accurately described as
a. an opinion that some scientists hold about how living things change over time.
b. an idea about how acquired characteristics are passed on to subsequent generations.
4
BIO 182 FINAL Exam 2 VERSIONS ALL QUESTIONS
AND CORRECT ANSWERS LATEST UPDATE THIS
YEAR NEW!!
BIO 182 FINAL Exam
QUESTION: DDT was once considered a "silver bullet" that would permanently eradicate insect
pests. Today, instead, DDT is largely useless against many insects. What would need to be true
for pest eradication efforts to have been successful in the long run?
a. Larger doses of DDT should have been applied.
b. All individual insects should have possessed genomes that made them susceptible to DDT.
c. DDT application should have been continual.
d. The frequency of DDT application should have been higher.
e. All habitats should have received applications of DDT at about the same time. - ANSWER-b.
All individual insects should have possessed genomes that made them susceptible to DDT.
QUESTION: Which of these evolutionary agents is most consistent at causing populations to
become better suited to their environments over the course of generations?
1
,Page 2 of 106
a. Natural selection
b. Mutation
c. Non-random mating
d. Genetic drift
e. Gene flow - ANSWER-a. Natural selection
In peas, a gene controls flower color such that R = purple is dominant to r= white. In an isolated
pea patch, there are 36 purple-flowering plants and 64 white-flowering plants. Assuming Hardy-
Weinberg equilibrium, what is the value of q(frequency of r) for this population?
a. 0.64
b. 0.36
c. 0.60
d. 0.75
e. 0.8 - ANSWER-e. 0.8
2
,Page 3 of 106
QUESTION: It has been observed that organisms on islands are different from, but closely
related to, similar forms found on the nearest continent. This is taken as evidence that
a. island forms and mainland forms have identical gene pools.
b. common environments are inhabited by the same organisms.
c. the island forms and mainland forms are converging.
d. island forms and mainland forms descended from common ancestors.
d. the islands were originally part of the continent. - ANSWER-d. island forms and mainland
forms descended from common ancestors.
QUESTION: In binomial nomenclature where humans are : Homo sapiens, Homo is the:
a. order
b. species
c. genus
d. class
e. family - ANSWER-c. genus
3
, Page 4 of 106
QUESTION: What evidence is there to support that the mitochondria was formed before
chloroplasts in an early eukaryotic cell ? - ANSWER-1. mitochondria and chloroplasts contain
their own DNA
2. All eukaryotic cells have mitochondria but not all of them have chloroplasts
3. The DNA in mitochondria and chloroplasts can replicate themselves
QUESTION: Which of the following is the correct sequence of these events in the origin of life?
1. formation of protocells
2. synthesis of organic monomers
3. synthesis of organic polymers
4. formation of DNA-based genetic systems - ANSWER-II, III, I, IV
QUESTION: The theory of evolution is most accurately described as
a. an opinion that some scientists hold about how living things change over time.
b. an idea about how acquired characteristics are passed on to subsequent generations.
4
