Question 1

The process in which related DNA sequences from two different sources are exchanged is called

Accepted Answer

A) transduction. 
B) phage conversion. 
C) reversion. 
D) homologous recombination. 
A) transduction. 
B) phage conversion. 
C) reversion. 
D) homologous recombination.

Question 2

High-efficiency natural transformation

Accepted Answer

A) is common in Bacteria and Archaea. 
B) requires specialized DNA uptake,DNA binding,and integration proteins. 
C) is only common in Archaea. 
D) usually involves plasmids. 
A) is common in Bacteria and Archaea. 
B) requires specialized DNA uptake,DNA binding,and integration proteins. 
C) is only common in Archaea. 
D) usually involves plasmids.

Question 3

Hfr strains of Escherichia coli

Accepted Answer

A) do not possess an F factor. 
B) have the F factor as a plasmid. 
C) have an integrated F factor. 
D) transfer the complete F factor to recipient cells at a high frequency. 
A) do not possess an F factor. 
B) have the F factor as a plasmid. 
C) have an integrated F factor. 
D) transfer the complete F factor to recipient cells at a high frequency.

Question 4

The SOS system repairs DNA that has gaps,breaks,and other lesions by

Accepted Answer

A) cutting DNA from other parts of the genome and pasting it into the gaps or damaged areas. 
B) stabilizing single-stranded DNA until the next round of normal replication. 
C) using specialized DNA polymerases that will synthesize a new DNA strand even if there is not a normal complementary DNA strand to act as a template. 
D) using available mRNA and a special RNA-dependent DNA polymerase to fill in the gaps and replace damaged DNA. 
A) cutting DNA from other parts of the genome and pasting it into the gaps or damaged areas. 
B) stabilizing single-stranded DNA until the next round of normal replication. 
C) using specialized DNA polymerases that will synthesize a new DNA strand even if there is not a normal complementary DNA strand to act as a template. 
D) using available mRNA and a special RNA-dependent DNA polymerase to fill in the gaps and replace damaged DNA.

Question 5

You work for a biotechnology company that uses Streptomyces strains to produce pharmaceutical products.A phage has infected and killed some of your Streptomyces strains during production,resulting in dramatically decreased yields.To protect the strains from infection you propose to

Accepted Answer

A) introduce gene transfer agents into the Streptomyces cultures to transfer antibiotic resistance genes into your Streptomyces strains. 
B) design and insert CRISPR spacer sequences into the genomes of your strains that are complementary to the genomes of the phages that are infecting the cultures. 
C) infect the Streptomyces strains with a helper phage that will help the strains resist infection. 
D) transform the Streptomyces strains with plasmids encoding antibody proteins that will protect them from phage infection. 
A) introduce gene transfer agents into the Streptomyces cultures to transfer antibiotic resistance genes into your Streptomyces strains. 
B) design and insert CRISPR spacer sequences into the genomes of your strains that are complementary to the genomes of the phages that are infecting the cultures. 
C) infect the Streptomyces strains with a helper phage that will help the strains resist infection. 
D) transform the Streptomyces strains with plasmids encoding antibody proteins that will protect them from phage infection.

Question 6

A mutation that readily reverses to restore the original parental type would most likely be due to a(n)

Accepted Answer

A) deletion. 
B) insertion. 
C) point mutation. 
D) frameshift mutation. 
A) deletion. 
B) insertion. 
C) point mutation. 
D) frameshift mutation.

Question 7

In the bacterial world,a gene located on which of the following would be the LEAST likely to be transferred?

Accepted Answer

A) R factor 
B) F⁺ 
C) the phage Mu 
D) the chromosome 
A) R factor 
B) F⁺ 
C) the phage Mu 
D) the chromosome

Question 8

Hfr means high frequency of ________,and these cells are capable of transferring genes from their ________ to other cells.

Accepted Answer

A) transformation / chromosome 
B) transduction / plasmids 
C) recombination / chromosome 
D) transduction / chromosome 
A) transformation / chromosome 
B) transduction / plasmids 
C) recombination / chromosome 
D) transduction / chromosome

The process in which related DNA sequences from two different sources are exchanged is called

High-efficiency natural transformation

Hfr strains of Escherichia coli

The SOS system repairs DNA that has gaps,breaks,and other lesions by

You work for a biotechnology company that uses Streptomyces strains to produce pharmaceutical products.A phage has infected and killed some of your Streptomyces strains during production,resulting in dramatically decreased yields.To protect the strains from infection you propose to

A mutation that readily reverses to restore the original parental type would most likely be due to a(n)

In the bacterial world,a gene located on which of the following would be the LEAST likely to be transferred?

Hfr means high frequency of ,and these cells are capable of transferring genes from their to other cells.

Microorganisms and Microbiology

Microbial Cell Structure and Function

Microbial Metabolism

Molecular Biology

Microbial Growth and Control

Microbial Genomics

Metabolic Regulation

Viruses and Virology

Viral Genomes and Diversity

Genetic Engineering and Biotechnology

Microbial Evolution and Systematics

Metabolic Diversity of Microorganisms

Functional Diversity of Bacteria

Diversity of Bacteria

Diversity of Archaea

Diversity of Eukaryotic Microorganisms

Methods in Microbial Ecology

Microbial Ecosystems

Nutrient Cycles

Microbiology of the Built Environment

Microbial Symbioses

Microbial Interactions With Humans

Immunity and Host Defense

Immune Mechanisms

Molecular Immunology

Diagnostic Microbiology

Epidemiology

Person-To-Person Bacterial and Viral Diseases

Vectorborne and Soilborne Bacterial and Viral Diseases

Water and Food As Vehicles of Bacterial Diseases

Eukaryotic Pathogens: Fungal and Parasitic Diseases

Filters

Exam 10: Genetics of Bacteria and Archaea

The process in which related DNA sequences from two different sources are exchanged is called

High-efficiency natural transformation

Hfr strains of Escherichia coli

The SOS system repairs DNA that has gaps,breaks,and other lesions by

You work for a biotechnology company that uses Streptomyces strains to produce pharmaceutical products.A phage has infected and killed some of your Streptomyces strains during production,resulting in dramatically decreased yields.To protect the strains from infection you propose to

A mutation that readily reverses to restore the original parental type would most likely be due to a(n)

In the bacterial world,a gene located on which of the following would be the LEAST likely to be transferred?

Hfr means high frequency of ________,and these cells are capable of transferring genes from their ________ to other cells.

Microorganisms and Microbiology

Microbial Cell Structure and Function

Microbial Metabolism

Molecular Biology

Microbial Growth and Control

Microbial Genomics

Metabolic Regulation

Viruses and Virology

Viral Genomes and Diversity

Genetic Engineering and Biotechnology

Microbial Evolution and Systematics

Metabolic Diversity of Microorganisms

Functional Diversity of Bacteria

Diversity of Bacteria

Diversity of Archaea

Diversity of Eukaryotic Microorganisms

Methods in Microbial Ecology

Microbial Ecosystems

Nutrient Cycles

Microbiology of the Built Environment

Microbial Symbioses

Microbial Interactions With Humans

Immunity and Host Defense

Immune Mechanisms

Molecular Immunology

Diagnostic Microbiology

Epidemiology

Person-To-Person Bacterial and Viral Diseases

Vectorborne and Soilborne Bacterial and Viral Diseases

Water and Food As Vehicles of Bacterial Diseases

Eukaryotic Pathogens: Fungal and Parasitic Diseases

Filters

Hfr means high frequency of ,and these cells are capable of transferring genes from their to other cells.