This document contains a quiz on microbial genetics with questions about DNA, protein synthesis, regulation of bacterial genes, mutation, and genetic transfer. Each topic contains 5 multiple choice questions with answers worth $100, $200, $300, $400, or $500. The questions test knowledge of key concepts such as the definition of a gene, DNA replication, transcription, translation, gene regulation, types of mutations, and horizontal gene transfer mechanisms. The final question asks about transposons.

1. Bradley W. Christian, McLennan Community College
© 2016 Pearson Education, Inc.
$200
$100
$300
$400
$500
$100
$200
$300
$400
$500
$100
$200
$300
$400
$500
$100
$200
$300
$400
$500
$100
$200
$300
$400
$500
Chapter 11: Microbial Genetics
DNA
Protein
Synthesis
Regulation of
Bacterial
Genes
Genetic
Transfer
Mutation
FINAL ROUND

2. © 2016 Pearson Education, Inc.
Topic 1: DNA
$100 Question
A segment of DNA that codes for a functional
product is a(n)
a. genetic code.
b. gene.
c. codon.
d. anticodon.
ANSWER
BACK TO GAME

3. © 2016 Pearson Education, Inc.
Topic 1: DNA
$100 Answer
A segment of DNA that codes for a functional
product is a(n)
a. genetic code.
b. gene.
c. codon.
d. anticodon.
BACK TO GAME

4. © 2016 Pearson Education, Inc.
Topic 1: DNA
$200 Question
Which process converts one parental double-
stranded DNA molecule to two identical offspring
molecules?
a. transformation
b. transcription
c. replication
d. translation
ANSWER
BACK TO GAME

5. © 2016 Pearson Education, Inc.
Topic 1: DNA
$200 Answer
Which process converts one parental double-
stranded DNA molecule to two identical offspring
molecules?
a. transformation
b. transcription
c. replication
d. translation
BACK TO GAME

6. © 2016 Pearson Education, Inc.
Topic 1: DNA
$300 Question
In DNA replication, the newly added nucleotide is
joined to the growing DNA strand by
a. DNA polymerase.
b. RNA polymerase.
c. DNA ligase.
d. DNA gyrase.
ANSWER
BACK TO GAME

7. © 2016 Pearson Education, Inc.
Topic 1: DNA
$300 Answer
In DNA replication, the newly added nucleotide is
joined to the growing DNA strand by
a. DNA polymerase.
b. RNA polymerase.
c. DNA ligase.
d. DNA gyrase.
BACK TO GAME

8. © 2016 Pearson Education, Inc.
Topic 1: DNA
$400 Question
DNA polymerase adds new nucleotides ONLY to
the ________ end of a DNA strand.
a. 2′
b. 3′
c. 4′
d. 5′
ANSWER
BACK TO GAME

9. © 2016 Pearson Education, Inc.
Topic 1: DNA
$400 Answer
DNA polymerase adds new nucleotides ONLY to
the ________ end of a DNA strand.
a. 2′
b. 3′
c. 4′
d. 5′
BACK TO GAME

10. © 2016 Pearson Education, Inc.
Topic 1: DNA
$500 Question
Which of the following enzymes joins DNA
strands, joins Okazaki fragments, and mends
gaps in the DNA backbone during excision
repair?
a. RNA polymerase
b. DNA polymerase
c. DNA ligase
d. DNA gyrase ANSWER
BACK TO GAME

11. © 2016 Pearson Education, Inc.
Topic 1: DNA
$500 Answer
Which of the following enzymes joins DNA
strands, joins Okazaki fragments, and mends
gaps in the DNA backbone during excision
repair?
a. RNA polymerase
b. DNA polymerase
c. DNA ligase
d. DNA gyrase
BACK TO GAME

12. © 2016 Pearson Education, Inc.
Topic 2: Protein Synthesis
$100 Question
What carries the coded information for making
specific proteins from DNA to ribosomes?
a. mRNA
b. rRNA
c. tRNA
d. RNA polymerase
ANSWER
BACK TO GAME

13. © 2016 Pearson Education, Inc.
Topic 2: Protein Synthesis
$100 Answer
What carries the coded information for making
specific proteins from DNA to ribosomes?
a. mRNA
b. rRNA
c. tRNA
d. RNA polymerase
BACK TO GAME

14. © 2016 Pearson Education, Inc.
Topic 2: Protein Synthesis
$200 Question
Which molecules recognize specific codons and
transport amino acids?
a. DNA
b. mRNA
c. rRNA
d. tRNA
ANSWER
BACK TO GAME

15. © 2016 Pearson Education, Inc.
Topic 2: Protein Synthesis
$200 Answer
Which molecules recognize specific codons and
transport amino acids?
a. DNA
b. mRNA
c. rRNA
d. tRNA
BACK TO GAME

16. © 2016 Pearson Education, Inc.
Topic 2: Protein Synthesis
$300 Question
A group of three nucleotides on mRNA is called
a(n)
a. codon.
b. anticodon.
c. exon.
d. intron.
ANSWER
BACK TO GAME

17. © 2016 Pearson Education, Inc.
Topic 2: Protein Synthesis
$300 Answer
A group of three nucleotides on mRNA is called
a(n)
a. codon.
b. anticodon.
c. exon.
d. intron.
BACK TO GAME

18. © 2016 Pearson Education, Inc.
Topic 2: Protein Synthesis
$400 Question
Transcription begins when RNA polymerase
binds to the DNA at the
a. intron.
b. start codon.
c. terminator.
d. promoter.
ANSWER
BACK TO GAME

19. © 2016 Pearson Education, Inc.
Topic 2: Protein Synthesis
$400 Answer
Transcription begins when RNA polymerase
binds to the DNA at the
a. intron.
b. start codon.
c. terminator.
d. promoter.
BACK TO GAME

20. © 2016 Pearson Education, Inc.
Topic 2: Protein Synthesis
$500 Question
Of the 64 codons, how many are sense codons?
a. 48
b. 60
c. 61
d. all of them
ANSWER
BACK TO GAME

21. © 2016 Pearson Education, Inc.
Topic 2: Protein Synthesis
$500 Answer
Of the 64 codons, how many are sense codons?
a. 48
b. 60
c. 61
d. all of them
BACK TO GAME

22. © 2016 Pearson Education, Inc.
Topic 3: Regulation of Bacterial Genes
$100 Question
Between 60% and 80% of genes are NOT
regulated, but are
a. constitutive.
b. continuous.
c. degenerative.
d. repressed.
ANSWER
BACK TO GAME

23. © 2016 Pearson Education, Inc.
Topic 3: Regulation of Bacterial Genes
$100 Answer
Between 60% and 80% of genes are NOT
regulated, but are
a. constitutive.
b. continuous.
c. degenerative.
d. repressed.
BACK TO GAME

24. © 2016 Pearson Education, Inc.
Topic 3: Regulation of Bacterial Genes
$200 Question
What is the process that turns on the transcription
of a gene or genes?
a. induction
b. repression
c. translation
d. replication
ANSWER
BACK TO GAME

25. © 2016 Pearson Education, Inc.
Topic 3: Regulation of Bacterial Genes
$200 Answer
What is the process that turns on the transcription
of a gene or genes?
a. induction
b. repression
c. translation
d. replication
BACK TO GAME

26. © 2016 Pearson Education, Inc.
Topic 3: Regulation of Bacterial Genes
$300 Question
A set of operator and promoter sites and the
structural genes they control defines a(n)
a. repressor.
b. operon.
c. inducer.
d. recombinant.
ANSWER
BACK TO GAME

27. © 2016 Pearson Education, Inc.
Topic 3: Regulation of Bacterial Genes
$300 Answer
A set of operator and promoter sites and the
structural genes they control defines a(n)
a. repressor.
b. operon.
c. inducer.
d. recombinant.
BACK TO GAME

28. © 2016 Pearson Education, Inc.
Topic 3: Regulation of Bacterial Genes
$400 Question
Inhibition of the metabolism of alternative carbon
sources by glucose is called
a. induction.
b. epigenetic control.
c. corepression.
d. catabolite repression.
ANSWER
BACK TO GAME

29. © 2016 Pearson Education, Inc.
Topic 3: Regulation of Bacterial Genes
$400 Answer
Inhibition of the metabolism of alternative carbon
sources by glucose is called
a. induction.
b. epigenetic control.
c. corepression.
d. catabolite repression.
BACK TO GAME

30. © 2016 Pearson Education, Inc.
Topic 3: Regulation of Bacterial Genes
$500 Question
Single-stranded RNA molecules that inhibit
protein production in eukaryotic cells are known
as
a. tRNAs.
b. mRNAs.
c. microRNAs.
d. rRNAs.
ANSWER
BACK TO GAME

31. © 2016 Pearson Education, Inc.
Topic 3: Regulation of Bacterial Genes
$500 Answer
Single-stranded RNA molecules that inhibit
protein production in eukaryotic cells are known
as
a. tRNAs.
b. mRNAs.
c. microRNAs.
d. rRNAs.
BACK TO GAME

32. © 2016 Pearson Education, Inc.
Topic 4: Mutation
$100 Question
Ionizing radiation causes
a. insertions and deletions.
b. thymine dimers.
c. nitrogenous base substitutions.
d. DNA strand breaks.
ANSWER
BACK TO GAME

33. © 2016 Pearson Education, Inc.
Topic 4: Mutation
$100 Answer
Ionizing radiation causes
a. insertions and deletions.
b. thymine dimers.
c. nitrogenous base substitutions.
d. DNA strand breaks.
BACK TO GAME

34. © 2016 Pearson Education, Inc.
Topic 4: Mutation
$200 Question
Thymine dimers can be repaired by light-repair
enzymes known as
a. ligases.
b. gyrases.
c. methylases.
d. photolyases.
ANSWER
BACK TO GAME

35. © 2016 Pearson Education, Inc.
Topic 4: Mutation
$200 Answer
Thymine dimers can be repaired by light-repair
enzymes known as
a. ligases.
b. gyrases.
c. methylases.
d. photolyases.
BACK TO GAME

36. © 2016 Pearson Education, Inc.
Topic 4: Mutation
$300 Question
What is the MOST common type of mutation
involving single base pairs?
a. frameshift mutation
b. nonsense mutation
c. missense mutation
d. base substitution
ANSWER
BACK TO GAME

37. © 2016 Pearson Education, Inc.
Topic 4: Mutation
$300 Answer
What is the MOST common type of mutation
involving single base pairs?
a. frameshift mutation
b. nonsense mutation
c. missense mutation
d. base substitution
BACK TO GAME

38. © 2016 Pearson Education, Inc.
Topic 4: Mutation
$400 Question
Mutations in which one or a few nucleotide pairs
are deleted or inserted in the DNA are called
a. nonsense mutations.
b. frameshift mutations.
c. point mutations.
d. base-pair mutations.
ANSWER
BACK TO GAME

39. © 2016 Pearson Education, Inc.
Topic 4: Mutation
$400 Answer
Mutations in which one or a few nucleotide pairs
are deleted or inserted in the DNA are called
a. nonsense mutations.
b. frameshift mutations.
c. point mutations.
d. base-pair mutations.
BACK TO GAME

40. © 2016 Pearson Education, Inc.
Topic 4: Mutation
$500 Question
Approximately what percentage of substances
found by the Ames test to be mutagenic are also
carcinogenic in animals?
a. 100%
b. 90%
c. 45%
d. 10%
ANSWER
BACK TO GAME

41. © 2016 Pearson Education, Inc.
Topic 4: Mutation
$500 Answer
Approximately what percentage of substances
found by the Ames test to be mutagenic are also
carcinogenic in animals?
a. 100%
b. 90%
c. 45%
d. 10%
BACK TO GAME

42. © 2016 Pearson Education, Inc.
Topic 5: Genetic Transfer
$100 Question
The process of bacteria passing their genes to
other microbes of the same generation is known
as
a. mitosis.
b. vertical gene transfer.
c. horizontal gene transfer.
d. crossing over.
ANSWER
BACK TO GAME

43. © 2016 Pearson Education, Inc.
Topic 5: Genetic Transfer
$100 Answer
The process of bacteria passing their genes to
other microbes of the same generation is known
as
a. mitosis.
b. vertical gene transfer.
c. horizontal gene transfer.
d. crossing over.
BACK TO GAME

44. © 2016 Pearson Education, Inc.
Topic 5: Genetic Transfer
$200 Question
Transformation is the transfer of DNA from a
donor to a recipient cell
a. by a bacteriophage.
b. as naked DNA in solution.
c. by sexual reproduction.
d. by crossing over.
ANSWER
BACK TO GAME

45. © 2016 Pearson Education, Inc.
Topic 5: Genetic Transfer
$200 Answer
Transformation is the transfer of DNA from a
donor to a recipient cell
a. by a bacteriophage.
b. as naked DNA in solution.
c. by sexual reproduction.
d. by crossing over.
BACK TO GAME

46. © 2016 Pearson Education, Inc.
Topic 5: Genetic Transfer
$300 Question
The process in which bacterial DNA is transferred
from a donor cell to a recipient cell inside a
bacteriophage is called
a. conjugation.
b. transduction.
c. crossing over.
d. transformation.
ANSWER
BACK TO GAME

47. © 2016 Pearson Education, Inc.
Topic 5: Genetic Transfer
$300 Answer
The process in which bacterial DNA is transferred
from a donor cell to a recipient cell inside a
bacteriophage is called
a. conjugation.
b. transduction.
c. crossing over.
d. transformation.
BACK TO GAME

48. © 2016 Pearson Education, Inc.
Topic 5: Genetic Transfer
$400 Question
The process for gene transfer which requires cell-
to-cell contact and a particular type of plasmid is
called
a. conjugation.
b. transduction.
c. crossing over.
d. transformation.
ANSWER
BACK TO GAME

49. © 2016 Pearson Education, Inc.
Topic 5: Genetic Transfer
$400 Answer
The process for gene transfer which requires cell-
to-cell contact and a particular type of plasmid is
called
a. conjugation.
b. transduction.
c. crossing over.
d. transformation.
BACK TO GAME

50. © 2016 Pearson Education, Inc.
Topic 5: Genetic Transfer
$500 Question
Which type of plasmids carry genes for sex pili
and for the transfer of the plasmid to another cell?
a. dissimilation plasmids
b. bacteriocin plasmids
c. conjugative plasmids
d. transposons
ANSWER
BACK TO GAME

51. © 2016 Pearson Education, Inc.
Topic 5: Genetic Transfer
$500 Answer
Which type of plasmids carry genes for sex pili
and for the transfer of the plasmid to another cell?
a. dissimilation plasmids
b. bacteriocin plasmids
c. conjugative plasmids
d. transposons
BACK TO GAME

52. © 2016 Pearson Education, Inc.
FINAL ROUND Question
What are the small segments of DNA that can
move from one region of a DNA molecule to
another?
a. operons
b. transposons
c. plasmids
d. microRNAs
ANSWER
BACK TO GAME

53. © 2016 Pearson Education, Inc.
FINAL ROUND Answer
What are the small segments of DNA that can
move from one region of a DNA molecule to
another?
a. operons
b. transposons
c. plasmids
d. microRNAs
BACK TO GAME