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12e (Tortora) Chapter 8 Test Bank.pdf10/20/2026,
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Chapter 8 T
Ch 08 test bank - mix
Microbiology With Diseases By Body System 5th Ed (Harvard University)
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Chapter 8 T
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12e (Tortora) Chapter 8 Test Bank.pdf10/20/2026,
12e (Tortora)
4:09:33Chapter
AM 8 Tes
Microbiology: An Introduction, 12e (Tortora)
Chapter 8 Microbial Genetics
8.1 Multiple-Choice Questions
1) A gene is best defined as
A) any random segment of DNA.
B) three nucleotides that code for an amino acid.
C) a sequence of nucleotides in DNA that codes for a functional product.
D) a sequence of nucleotides in RNA that codes for a functional product.
E) the RNA product of a transcribed section of DNA.
Answer: C
Section: 8.1
Bloom's Taxonomy: Knowledge
Learning Outcome: 8.1
2) Which of the following pairs is mismatched?
A) DNA polymerase — makes a molecule of DNA from a DNA template
B) RNA polymerase — makes a molecule of RNA from an RNA template
C) DNA ligase — joins segments of DNA
D) transposase — insertion of DNA segments into DNA
E) DNA gyrase — coils and twists DNA
Answer: B
Section: 8.1
Bloom's Taxonomy: Knowledge
Learning Outcome: 8.3
3) Which of the following statements is FALSE?
A) DNA polymerase joins nucleotides in one direction (5' to 3') only.
B) The leading strand of DNA is made continuously.
C) The lagging strand of DNA is started by an RNA primer.
D) DNA replication proceeds in only one direction around the bacterial chromosome.
E) Multiple replication forks are possible on a bacterial chromosome.
Answer: D
Section: 8.1
Bloom's Taxonomy: Comprehension
Learning Outcome: 8.3
Global Outcome: 2
1
Copyright © 2016 Pearson Education, Inc.
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12e (Tortora) Chapter 8 Test Bank.pdf10/20/2026,
12e (Tortora)
4:09:33Chapter
AM 8 Tes
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12e (Tortora) Chapter 8 Test Bank.pdf10/20/2026,
12e (Tortora)
4:09:33Chapter
AM 8 Tes
4) DNA is constructed of
A) a single strand of nucleotides with internal hydrogen bonding.
B) two complementary strands of nucleotides bonded A—C and G—T.
C) two strands of nucleotides running in an antiparallel configuration.
D) two strands of identical nucleotides in a parallel configuration with hydrogen bonds between
them.
E) None of the answers is correct.
Answer: C
Section: 8.1
Bloom's Taxonomy: Comprehension
Learning Outcome: 8.2
Global Outcome: 2
5) Which of the following is NOT a product of transcription?
A) a new strand of DNA
B) rRNA
C) tRNA
D) mRNA
E) None of the answers are correct; all of these are products of transcription.
Answer: A
Section: 8.1
Bloom's Taxonomy: Comprehension
Learning Outcome: 8.4
6) Which of the following statements about bacteriocins is FALSE?
A) The genes coding for them are on plasmids.
B) They cause food-poisoning symptoms.
C) Nisin is a bacteriocin used as a food preservative.
D) They can be used to identify certain bacteria.
E) Bacteriocins kill bacteria.
Answer: B
Section: 8.4
Bloom's Taxonomy: Comprehension
Learning Outcome: 8.16
Global Outcome: 7
2
Copyright © 2016 Pearson Education, Inc.
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12e (Tortora) Chapter 8 Test Bank.pdf10/20/2026,
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4:09:33Chapter
AM 8 Tes
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12e (Tortora) Chapter 8 Test Bank.pdf10/20/2026,
12e (Tortora)
4:09:33 AM
Chapter 8 T
Ch 08 test bank - mix
Microbiology With Diseases By Body System 5th Ed (Harvard University)
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12e (Tortora) Chapter 8 Test Bank.pdf10/20/2026,
12e (Tortora)
4:09:33 AM
Chapter 8 T
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12e (Tortora) Chapter 8 Test Bank.pdf10/20/2026,
12e (Tortora)
4:09:33Chapter
AM 8 Tes
Microbiology: An Introduction, 12e (Tortora)
Chapter 8 Microbial Genetics
8.1 Multiple-Choice Questions
1) A gene is best defined as
A) any random segment of DNA.
B) three nucleotides that code for an amino acid.
C) a sequence of nucleotides in DNA that codes for a functional product.
D) a sequence of nucleotides in RNA that codes for a functional product.
E) the RNA product of a transcribed section of DNA.
Answer: C
Section: 8.1
Bloom's Taxonomy: Knowledge
Learning Outcome: 8.1
2) Which of the following pairs is mismatched?
A) DNA polymerase — makes a molecule of DNA from a DNA template
B) RNA polymerase — makes a molecule of RNA from an RNA template
C) DNA ligase — joins segments of DNA
D) transposase — insertion of DNA segments into DNA
E) DNA gyrase — coils and twists DNA
Answer: B
Section: 8.1
Bloom's Taxonomy: Knowledge
Learning Outcome: 8.3
3) Which of the following statements is FALSE?
A) DNA polymerase joins nucleotides in one direction (5' to 3') only.
B) The leading strand of DNA is made continuously.
C) The lagging strand of DNA is started by an RNA primer.
D) DNA replication proceeds in only one direction around the bacterial chromosome.
E) Multiple replication forks are possible on a bacterial chromosome.
Answer: D
Section: 8.1
Bloom's Taxonomy: Comprehension
Learning Outcome: 8.3
Global Outcome: 2
1
Copyright © 2016 Pearson Education, Inc.
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12e (Tortora) Chapter 8 Test Bank.pdf10/20/2026,
12e (Tortora)
4:09:33Chapter
AM 8 Tes
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12e (Tortora) Chapter 8 Test Bank.pdf10/20/2026,
12e (Tortora)
4:09:33Chapter
AM 8 Tes
4) DNA is constructed of
A) a single strand of nucleotides with internal hydrogen bonding.
B) two complementary strands of nucleotides bonded A—C and G—T.
C) two strands of nucleotides running in an antiparallel configuration.
D) two strands of identical nucleotides in a parallel configuration with hydrogen bonds between
them.
E) None of the answers is correct.
Answer: C
Section: 8.1
Bloom's Taxonomy: Comprehension
Learning Outcome: 8.2
Global Outcome: 2
5) Which of the following is NOT a product of transcription?
A) a new strand of DNA
B) rRNA
C) tRNA
D) mRNA
E) None of the answers are correct; all of these are products of transcription.
Answer: A
Section: 8.1
Bloom's Taxonomy: Comprehension
Learning Outcome: 8.4
6) Which of the following statements about bacteriocins is FALSE?
A) The genes coding for them are on plasmids.
B) They cause food-poisoning symptoms.
C) Nisin is a bacteriocin used as a food preservative.
D) They can be used to identify certain bacteria.
E) Bacteriocins kill bacteria.
Answer: B
Section: 8.4
Bloom's Taxonomy: Comprehension
Learning Outcome: 8.16
Global Outcome: 7
2
Copyright © 2016 Pearson Education, Inc.
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12e (Tortora) Chapter 8 Test Bank.pdf10/20/2026,
12e (Tortora)
4:09:33Chapter
AM 8 Tes
