Question 1

A primer of ____ is needed at the origin of nucleotide addition.

Accepted Answer

A) polymerase III 
B) polymerase I 
C) helicase 
D) RNA 
E) DNA 
A) polymerase III 
B) polymerase I 
C) helicase 
D) RNA 
E) DNA

Question 2

During replication, each parent DNA strand serves as a _____ for synthesis of new DNA strands.

Accepted Answer

A) copy point 
B) template 
C) comparison molecule 
D) scaffold 
E) reservoir 
A) copy point 
B) template 
C) comparison molecule 
D) scaffold 
E) reservoir

Question 3

RNA polymerase binds to the

Accepted Answer

A) start codon. 
B) termination sequence. 
C) regulation sequence. 
D) promoter sequence. 
A) start codon. 
B) termination sequence. 
C) regulation sequence. 
D) promoter sequence.

Question 4

The _____ is all of the genetic material of a cell.

Accepted Answer

A) chromosome 
B) plasmid 
C) prophage 
D) genome 
E) proteome 
A) chromosome 
B) plasmid 
C) prophage 
D) genome 
E) proteome

Question 5

All of the following pertain to transcription except

Accepted Answer

A) occurs on a ribosome in the cytoplasm. 
B) occurs before translation. 
C) requires RNA polymerase. 
D) requires a template DNA strand. 
E) is a process of protein synthesis. 
A) occurs on a ribosome in the cytoplasm. 
B) occurs before translation. 
C) requires RNA polymerase. 
D) requires a template DNA strand. 
E) is a process of protein synthesis.

Question 6

All mutations are harmful to the cell.

Accepted Answer

A) True 
 B)False

Question 7

DNA polymerase III

Accepted Answer

A) synthesizes primer. 
B) removes primer. 
C) joins Okazaki fragments. 
D) unzips the DNA helix. 
E) proofreads new DNA. 
A) synthesizes primer. 
B) removes primer. 
C) joins Okazaki fragments. 
D) unzips the DNA helix. 
E) proofreads new DNA.

Question 8

Split genes

Accepted Answer

A) are common in prokaryotes and eukaryotes. 
B) only have exons initially transcribed to mRNA. 
C) have introns located only at the beginning and end of a coding region. 
D) require spliceosomes to excise introns and then join exons. 
E) All of these choices are correct. 
A) are common in prokaryotes and eukaryotes. 
B) only have exons initially transcribed to mRNA. 
C) have introns located only at the beginning and end of a coding region. 
D) require spliceosomes to excise introns and then join exons. 
E) All of these choices are correct.

Question 9

Which of the following is not true of an organism's genotype?

Accepted Answer

A) The genotype is inherited. 
B) The genotype is made up of structural genes coding for proteins. 
C) The genotype includes genes coding for RNA. 
D) The genotype includes regulatory genes controlling gene expression. 
E) The genotype includes the expressed traits governed by the genes. 
A) The genotype is inherited. 
B) The genotype is made up of structural genes coding for proteins. 
C) The genotype includes genes coding for RNA. 
D) The genotype includes regulatory genes controlling gene expression. 
E) The genotype includes the expressed traits governed by the genes.

Question 10

Which is incorrect about purines?

Accepted Answer

A) Purines are only found in DNA, not in RNA. 
B) Purines are nitrogenous bases. 
C) Purines are always paired with a specific pyrimidine. 
D) Purines include adenine and guanine. 
E) Purines are found within nucleotides. 
A) Purines are only found in DNA, not in RNA. 
B) Purines are nitrogenous bases. 
C) Purines are always paired with a specific pyrimidine. 
D) Purines include adenine and guanine. 
E) Purines are found within nucleotides.

Question 11

A screening system called the _____ test is used for detecting chemicals with carcinogenic potential.

Accepted Answer

A) Koch 
B) Ames 
C) mutation 
D) cancer 
E) Iowa 
A) Koch 
B) Ames 
C) mutation 
D) cancer 
E) Iowa

Question 12

Among the microorganisms, various genomes can include

Accepted Answer

A) chromosomes. 
B) plasmids. 
C) mitochondrial DNA. 
D) chloroplast DNA. 
E) All of these choices are correct. 
A) chromosomes. 
B) plasmids. 
C) mitochondrial DNA. 
D) chloroplast DNA. 
E) All of these choices are correct.

Question 13

Some RNA viruses direct the synthesis of double-stranded DNA at some point in their life cycle.

Accepted Answer

A) True 
 B)False

Question 14

Repressible operons are normally turned on in the cell.

Accepted Answer

A) True 
 B)False

Question 15

Full induction of the lactose operon requires

Accepted Answer

A) that lactose be present. 
B) that lactose and glucose both be present. 
C) that lactose be present without glucose. 
D) that lactose and arabinose both be present. 
E) All of these choices induce the lactose operon. 
A) that lactose be present. 
B) that lactose and glucose both be present. 
C) that lactose be present without glucose. 
D) that lactose and arabinose both be present. 
E) All of these choices induce the lactose operon.

Question 16

DNA polymerase III

Accepted Answer

A) is needed for adding nucleotides during mRNA synthesis. 
B) synthesizes new DNA only in the 5'to 3'direction. 
C) cannot add nucleotides to the lagging strand. 
D) synthesizes an RNA primer. 
E) All of these choices are correct. 
A) is needed for adding nucleotides during mRNA synthesis. 
B) synthesizes new DNA only in the 5'to 3'direction. 
C) cannot add nucleotides to the lagging strand. 
D) synthesizes an RNA primer. 
E) All of these choices are correct.

Question 17

Semiconservative replication refers to

Accepted Answer

A) each base bonding at the 1'position of the sugar. 
B) a purine always bonding to a pyrimidine. 
C) one helix strand that runs from the 5'to 3'direction and the other strand runs from the 3'to 5'direction. 
D) an original parent DNA strand and one newly synthesized DNA strand comprising a new DNA molecule. 
A) each base bonding at the 1'position of the sugar. 
B) a purine always bonding to a pyrimidine. 
C) one helix strand that runs from the 5'to 3'direction and the other strand runs from the 3'to 5'direction. 
D) an original parent DNA strand and one newly synthesized DNA strand comprising a new DNA molecule.

Question 18

The following pertain to ribosomes during protein synthesis except

Accepted Answer

A) they contain codons within their rRNA molecules. 
B) ribosomes participate only in translation. 
C) ribosomes bind to the 5'end of mRNA by their small subunit. 
D) ribosomes use their large subunit to supply enzymes for peptide bonding. 
E) ribosomes shift toward the 3'end of the mRNA strand from one codon to the next. 
A) they contain codons within their rRNA molecules. 
B) ribosomes participate only in translation. 
C) ribosomes bind to the 5'end of mRNA by their small subunit. 
D) ribosomes use their large subunit to supply enzymes for peptide bonding. 
E) ribosomes shift toward the 3'end of the mRNA strand from one codon to the next.

Question 19

A bacteriophage transfers DNA of the previous host to the current host.This is an example of

Accepted Answer

A) conjugation. 
B) generalized transduction. 
C) specialized transduction. 
D) creation of an Hfr cell. 
A) conjugation. 
B) generalized transduction. 
C) specialized transduction. 
D) creation of an Hfr cell.

Question 20

The expression of genetic traits is the

Accepted Answer

A) genome. 
B) genotype. 
C) proteome. 
D) phenotype. 
E) proteotype. 
A) genome. 
B) genotype. 
C) proteome. 
D) phenotype. 
E) proteotype.

Exam 9: Microbial Genetics

A primer of ____ is needed at the origin of nucleotide addition.

During replication, each parent DNA strand serves as a _____ for synthesis of new DNA strands.

RNA polymerase binds to the

The _____ is all of the genetic material of a cell.

All of the following pertain to transcription except

All mutations are harmful to the cell.

DNA polymerase III

Split genes

Which of the following is not true of an organism's genotype?

Which is incorrect about purines?

A screening system called the _____ test is used for detecting chemicals with carcinogenic potential.

Among the microorganisms, various genomes can include

Some RNA viruses direct the synthesis of double-stranded DNA at some point in their life cycle.

Repressible operons are normally turned on in the cell.

Full induction of the lactose operon requires

DNA polymerase III

Semiconservative replication refers to

The following pertain to ribosomes during protein synthesis except

A bacteriophage transfers DNA of the previous host to the current host.This is an example of

The expression of genetic traits is the

The Main Themes of Microbiology

The Chemistry of Biology

Tools of the Laboratory: Methods of Studying Microorganisms

A Survey of Prokaryotic Cells and Microorganisms

A Survey of Eukaryotic Cells and Microorganisms

An Introduction to Viruses

Microbial Nutrition, Ecology, and Growth

An Introduction to Microbial Metabolism: the Chemical Crossroads of Life

Genetic Engineering: a Revolution in Molecular Biology

Physical and Chemical Agents for Microbial Control

Drugs, Microbes, Host--The Elements of Chemotherapy

Microbe-Human Interactions: Infection and Disease

An Introduction to Host Defenses and Innate Immunities

Adaptive, Specific Immunity and Immunization

Disorders in Immunity

Procedures for Identifying Pathogens and Diagnosing Infections

The Gram-Positive and Gram-Negative Cocci of Medical Importance

The Gram-Positive Bacilli of Medical Importance

The Gram-Negative Bacilli of Medical Importance

Miscellaneous Bacterial Agents of Disease

The Fungi of Medical Importance

The Parasites of Medical Importance

Introduction to Viruses That Infect Humans: the Dna Viruses

The Rna Viruses That Infect Humans

Environmental Microbiology

Applied and Industrial Microbiology

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