Question 1

Mole percent (G+C)of DNA is useful for determining relatedness at the __________ level.

Accepted Answer

A) kingdom 
B) class 
C) genus 
D) none of the choices 
A) kingdom 
B) class 
C) genus 
D) none of the choices

Question 2

According to genome analysis,a member of the genus ______________ is most closely related to the mitochondrion.

Accepted Answer

A) Escherichia 
B) Agrobacterium 
C) Prochloron 
D) Rickettsia 
A) Escherichia 
B) Agrobacterium 
C) Prochloron 
D) Rickettsia

Question 3

The scientific study of organisms with the ultimate goal of characterizing and arranging them in an orderly manner is

Accepted Answer

A) taxonomy. 
B) classification. 
C) systematics. 
D) identification. 
A) taxonomy. 
B) classification. 
C) systematics. 
D) identification.

Question 4

The type strain is a well-characterized strain to which other strains are compared for inclusion in or exclusion from a particular species.

Accepted Answer

A) True 
 B)False

Question 5

Bacterial strains that are characterized by biochemical differences are called __________.

Accepted Answer

The answer of Bacterial strains that are characterized by biochemical...

Question 6

Conserved indels are

Accepted Answer

A) a type of transposable sequence characteristic of particular genus and useful for taxonomic analysis. 
B) sequences in eukaryotic mRNAs that are removed by RNA splicing. 
C) a type of signature sequence particularly useful for phylogenetic analysis. 
D) sequences of protein coding genes that are found altered in related species due to their tendency to accumulate small deletions. 
A) a type of transposable sequence characteristic of particular genus and useful for taxonomic analysis. 
B) sequences in eukaryotic mRNAs that are removed by RNA splicing. 
C) a type of signature sequence particularly useful for phylogenetic analysis. 
D) sequences of protein coding genes that are found altered in related species due to their tendency to accumulate small deletions.

Question 7

Stable annealing due to hydrogen bonding between DNAs of similar nucleotide sequence from different organisms is referred to as

Accepted Answer

A) hydrolysis. 
B) restriction. 
C) hybridization. 
D) ligation. 
A) hydrolysis. 
B) restriction. 
C) hybridization. 
D) ligation.

Question 8

The ancestors of modern _______________ performed the oxygenic photosynthesis responsible for converting our anoxic planet to an oxygenated one.

Accepted Answer

A) Crenarchaeota 
B) Proteobacteria 
C) Firmicutes 
D) Cyanobacteria 
A) Crenarchaeota 
B) Proteobacteria 
C) Firmicutes 
D) Cyanobacteria

Question 9

Microorganisms do not generally reproduce sexually; therefore,species are usually defined by phenotypic and genotypic similarities.

Accepted Answer

A) True 
 B)False

Question 10

Serovars are strains of a species that have distinctive antigenic properties.

Accepted Answer

A) True 
 B)False

Question 11

The temperature at which half of the strands of a double-stranded DNA molecule have separated from each other is called the __________ temperature.

Accepted Answer

A) separation 
B) melting 
C) destabilizing 
D) mobilization 
A) separation 
B) melting 
C) destabilizing 
D) mobilization

Question 12

A classification system based on evolutionary relationships is called a __________ system.

Accepted Answer

A) phylogenetic 
B) phenetic 
C) systematic 
D) determinative 
A) phylogenetic 
B) phenetic 
C) systematic 
D) determinative

Question 13

The general order of classification below the domain or kingdom level is

Accepted Answer

A) phyla,order,class,family,genus,species. 
B) phyla,order,family,class,genus,species. 
C) phyla,class,family,order,genus,species. 
D) phyla,class,order,family,genus,species. 
A) phyla,order,class,family,genus,species. 
B) phyla,order,family,class,genus,species. 
C) phyla,class,family,order,genus,species. 
D) phyla,class,order,family,genus,species.

Question 14

Transformation is not useful in determining relatedness between two organisms because it frequently crosses genera.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following is an example of the use of the binomial system devised by Linnaeus?

Accepted Answer

A) Escherichia coli 
B) Enterobacteriaceae 
C) Enterobacteriales 
D) O157:H7 
A) Escherichia coli 
B) Enterobacteriaceae 
C) Enterobacteriales 
D) O157:H7

Question 16

A population descending from a single organism or pure culture isolate is called a

Accepted Answer

A) genus. 
B) species. 
C) subspecies. 
D) strain. 
A) genus. 
B) species. 
C) subspecies. 
D) strain.

Question 17

Although there are other classification schemes for prokaryotes,the one used in Bergey's Manual is currently considered by most microbiologists to be the most accurate.

Accepted Answer

A) True 
 B)False

Question 18

Extensive horizontal gene transfer between domains greatly simplifies the construction of phylogenetic trees.

Accepted Answer

A) True 
 B)False

Question 19

The determination of the taxon to which an organism belongs is called

Accepted Answer

A) taxonomy. 
B) classification. 
C) systematics. 
D) identification. 
A) taxonomy. 
B) classification. 
C) systematics. 
D) identification.

Question 20

rRNA signature sequences can be used to place microorganisms in the correct domain.

Accepted Answer

A) True 
 B)False

Exam 19: Microbial Taxonomy and the Evolution of Diversity

Mole percent (G+C)of DNA is useful for determining relatedness at the __________ level.

According to genome analysis,a member of the genus ______________ is most closely related to the mitochondrion.

The scientific study of organisms with the ultimate goal of characterizing and arranging them in an orderly manner is

The type strain is a well-characterized strain to which other strains are compared for inclusion in or exclusion from a particular species.

Bacterial strains that are characterized by biochemical differences are called __________.

Conserved indels are

Stable annealing due to hydrogen bonding between DNAs of similar nucleotide sequence from different organisms is referred to as

The ancestors of modern _______________ performed the oxygenic photosynthesis responsible for converting our anoxic planet to an oxygenated one.

Microorganisms do not generally reproduce sexually; therefore,species are usually defined by phenotypic and genotypic similarities.

Serovars are strains of a species that have distinctive antigenic properties.

The temperature at which half of the strands of a double-stranded DNA molecule have separated from each other is called the __________ temperature.

A classification system based on evolutionary relationships is called a __________ system.

The general order of classification below the domain or kingdom level is

Transformation is not useful in determining relatedness between two organisms because it frequently crosses genera.

Which of the following is an example of the use of the binomial system devised by Linnaeus?

A population descending from a single organism or pure culture isolate is called a

Although there are other classification schemes for prokaryotes,the one used in Bergey's Manual is currently considered by most microbiologists to be the most accurate.

Extensive horizontal gene transfer between domains greatly simplifies the construction of phylogenetic trees.

The determination of the taxon to which an organism belongs is called

rRNA signature sequences can be used to place microorganisms in the correct domain.

The Evolution of Microorganisms and Microbiology

Microscopy

Bacterial Cell Structure

Archaeal Cell Structure

Eukaryotic Cell Structure

Viruses and Other Acellular Infectious Agents

Microbial Growth

Control of Microorganisms in the Environment

Antimicrobial Chemotherapy

Introduction to Metabolism

Catabolism: Energy Release and Conservation

Anabolism: the Use of Energy in Biosynthesis

Bacterial Genome Replication and Expression

Regulation of Bacterial Cellular Processes

Eukaryotic and Archaeal Genome Replication and Expression

Mechanisms of Genetic Variation

Recombinant Dna Technology

Microbial Genomics

The Archaea

The Deinococci,mollicutes,and Nonproteobacterial Gram-Negative Bacteria

The Proteobacteria

Firmicutes: the Low G 1 C Gram-Positive Bacteria

Actinobacteria: the High G 1 C Gram-Positive Bacteria

The Protists

The Fungi Eumycota

Viruses

Biogeochemical Cycling and Global Climate Change

Methods in Microbial Ecology

Microorganisms in Marine and Freshwater Ecosystems

Microorganisms in Terrestrial Ecosystems

Microbial Interactions

Innate Host Resistance

Adaptive Immunity

Pathogenicity and Infection

Clinical Microbiology and Immunology

Epidemiology and Public Health Microbiology

Human Diseases Caused by Viruses and Prions

Human Diseases Caused by Bacteria

Human Diseases Caused by Fungi and Protists

Microbiology of Food

Biotechnology and Industrial Microbiology

Applied Environmental Microbiology

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