Question 1

A frameshift is caused by ______ mutations?

Accepted Answer

A)  missense and insertion
B)  missense and nonsense
C)  nonsense and deletion
D)  deletion and insertion
E)  insertion and nonsenseF) A) and C)
G) A) and B)

Question 2

Folding of the 5'end of a mRNA, such that binding to the ribosome is altered, is most likely to affect

Accepted Answer

A)  replication.
B)  transcription.
C)  translation.
D)  transformation.E) All of the above
F) A) and D)

Question 3

Transcription occurs in the nucleus or at the nucleoid.

Accepted Answer

A) True 
 B)False

Question 4

Induced mutations result from errors in DNA replication.

Accepted Answer

A) True 
 B)False

Question 5

If a codon for alanine is GCA.What is the anticodon?

Accepted Answer

A)  GCA
B)  CGT
C)  ACG
D)  CGU
E)  UGCF) B) and E)
G) C) and D)

Question 6

The gene of an operon that codes for a protein repressor is called the

Accepted Answer

A)  operator.
B)  structural locus.
C)  regulator.
D)  promoter.E) A) and B)
F) C) and D)

Question 7

Which cell can transfer the most DNA?

Accepted Answer

A)  F+ cell
B)  F-cell
C)  Hfr cell
D)  R cell
E)  B cellF) B) and C)
G) A) and C)

Question 8

Which of the following is not true of the prokaryotic ribosome?

Accepted Answer

A)  Prokaryotic ribosomes are 70S.
B)  A prokaryotic ribosome has a peptide (P)  site.
C)  A prokaryotic ribosome has an exit (
E)   site.
D)  The small subunit provides the enzymes for making peptide bonds.
E)  The prokaryotic ribosome has an amino acyl (
A)   site.F) C) and E)
G) A) and D)

Question 9

The different types of nucleic acids found in viruses include all of the following except

Accepted Answer

A)  double-stranded DNA.
B)  single-stranded DNA.
C)  double-stranded RNA.
D)  single-stranded RNA.
E)  There are no exceptions here.Each of these types may be found in viruses.F) A) and D)
G) A) and E)

Question 10

Eukaryotic chromosomes differ from prokaryotic chromosomes because only eukaryotes have

Accepted Answer

A)  histone proteins.
B)  chromosomes in a nucleus.
C)  several to many chromosomes.
D)  elongated linear, not circular, chromosomes.
E)  All of these choices are correct.F) B) and C)
G) B) and D)

Question 11

The development of virulent, toxin-producing bacterial strains due to the presence of a temperate phage can occur in

Accepted Answer

A)  bacterial conjugation.
B)  transformation.
C)  generalized transduction.
D)  specialized transduction.
E)  All of these choices are correct.F) C) and D)
G) B) and C)

Question 12

Which of the following is not a type of bacterial DNA recombination?

Accepted Answer

A)  transformation
B)  conjugation
C)  mitosis
D)  transductionE) B) and D)
F) A) and B)

Question 13

Structural genes code for

Accepted Answer

A)  ribosomal RNA molecules.
B)  transfer RNA molecules.
C)  cellular proteins.
D)  gene expression elements.
E)  All of these choices are correct.F) C) and D)
G) All of the above

Exam 9: Microbial Genetics

The development of virulent, toxin-producing bacterial strains due to the presence of a temperate phage can occur in

Correct Answer
verified

Induced mutations result from errors in DNA replication.

Correct Answer
verified

Transcription occurs in the nucleus or at the nucleoid.

Correct Answer
verified

The different types of nucleic acids found in viruses include all of the following except

Correct Answer
verified

Which of the following is not true of the prokaryotic ribosome?

Correct Answer
verified

If a codon for alanine is GCA.What is the anticodon?

Correct Answer
verified

Folding of the 5'end of a mRNA, such that binding to the ribosome is altered, is most likely to affect

Correct Answer
verified

Which cell can transfer the most DNA?

Correct Answer
verified

Structural genes code for

Correct Answer
verified

The gene of an operon that codes for a protein repressor is called the

Correct Answer
verified

Which of the following is not a type of bacterial DNA recombination?

Correct Answer
verified

Eukaryotic chromosomes differ from prokaryotic chromosomes because only eukaryotes have

Correct Answer
verified

A frameshift is caused by ______ mutations?

Correct Answer
verified

Exam 9: Microbial Genetics

The development of virulent, toxin-producing bacterial strains due to the presence of a temperate phage can occur in

Correct AnswerverifiedShow Answer

Induced mutations result from errors in DNA replication.

Correct AnswerverifiedShow Answer

Transcription occurs in the nucleus or at the nucleoid.

Correct AnswerverifiedShow Answer

The different types of nucleic acids found in viruses include all of the following except

Correct AnswerverifiedShow Answer

Which of the following is not true of the prokaryotic ribosome?

Correct AnswerverifiedShow Answer

If a codon for alanine is GCA.What is the anticodon?

Correct AnswerverifiedShow Answer

Folding of the 5'end of a mRNA, such that binding to the ribosome is altered, is most likely to affect

Correct AnswerverifiedShow Answer

Which cell can transfer the most DNA?

Correct AnswerverifiedShow Answer

Structural genes code for

Correct AnswerverifiedShow Answer

The gene of an operon that codes for a protein repressor is called the

Correct AnswerverifiedShow Answer

Which of the following is not a type of bacterial DNA recombination?

Correct AnswerverifiedShow Answer

Eukaryotic chromosomes differ from prokaryotic chromosomes because only eukaryotes have

Correct AnswerverifiedShow Answer

A frameshift is caused by ______ mutations?

Correct AnswerverifiedShow Answer

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