Question 1

The pattern of gene transfer from Hfr to F- cells ____. ​

Accepted Answer

A) occurs with genes furthest from the F factor being transferred first 
B) can be used to map chromosomal genes in the F- cell ​ 
C) was used to map the E. coli chromosome ​ 
D) cannot be used to indicate the relative positions of genes within the Hfr cell ​ 
E) is random because the F factor moves between different positions in the chromosome ​ 
A) occurs with genes furthest from the F factor being transferred first 
B) can be used to map chromosomal genes in the F- cell ​ 
C) was used to map the E. coli chromosome ​ 
D) cannot be used to indicate the relative positions of genes within the Hfr cell ​ 
E) is random because the F factor moves between different positions in the chromosome ​ C

Question 2

Viruses that kill bacterial host cells during each cycle of infection are called ____. ​

Accepted Answer

A) virulent bacteriophages ​ 
B) enveloped viruses ​ 
C) temperate bacteriophages ​ 
D) phages ​ 
E) nonvirulent bacteriophages ​ 
A) virulent bacteriophages ​ 
B) enveloped viruses ​ 
C) temperate bacteriophages ​ 
D) phages ​ 
E) nonvirulent bacteriophages ​ A

Question 3

The ability to conjugate depends on the presence of a plasmid called the ____ within the donor cell. ​

Accepted Answer

A) X factor 
B) F factor ​ 
C) C factor 
D) sex pilus ​ 
E) S factor ​ 
A) X factor 
B) F factor ​ 
C) C factor 
D) sex pilus ​ 
E) S factor ​ B

Question 4

Match between columns
                        Premises: Tobacco mosaic virus

Accepted Answer

The Answer of Helical virus and Enveloped virus and Polyhedral is...

Question 5

Match between columns
                        Premises: Bacteriophage lambda

Accepted Answer

The Answer of When an animal virus remains in the is...

Question 6

Retroviruses ____. ​

Accepted Answer

A) have DNA genomes 
B) use an RNA intermediate to replicate their genome ​ 
C) replicate their RNA genome directly to produce progeny RNA genomes ​ 
D) do not have an envelope ​ 
E) require reverse transcriptase to replicate their genome ​ 
A) have DNA genomes 
B) use an RNA intermediate to replicate their genome ​ 
C) replicate their RNA genome directly to produce progeny RNA genomes ​ 
D) do not have an envelope ​ 
E) require reverse transcriptase to replicate their genome ​

Question 7

The movement of genetic material between organisms other than by descent is called ____. ​

Accepted Answer

A) vertical gene transfer 
B) horizontal gene transfer ​ 
C) parallel gene transfer ​ 
D) sexual reproduction ​ 
E) asexual reproduction ​ 
A) vertical gene transfer 
B) horizontal gene transfer ​ 
C) parallel gene transfer ​ 
D) sexual reproduction ​ 
E) asexual reproduction ​

Question 8

Match between columns
                        Premises: Lysogenic cycle

Accepted Answer

The Answer of When an animal virus remains in the is...

Question 9

Electroporation ____. ​

Accepted Answer

A) exposes cells briefly to rapid pulses of electrical current to induce transformation 
B) exposes cells to calcium ions to induce transformation ​ 
C) exposes cells to calcium ions to induce transduction ​ 
D) inserts the foreign DNA into chloroplast DNA ​ 
E) inserts the foreign DNA into mitochondrial DNA ​ 
A) exposes cells briefly to rapid pulses of electrical current to induce transformation 
B) exposes cells to calcium ions to induce transformation ​ 
C) exposes cells to calcium ions to induce transduction ​ 
D) inserts the foreign DNA into chloroplast DNA ​ 
E) inserts the foreign DNA into mitochondrial DNA ​

Question 10

Transformation is used in genetic engineering to ____. ​

Accepted Answer

A) generate bacteria with an F factor for conjugation 
B) understand how bacteriophages transfer DNA to bacteria ​ 
C) obtain large quantities of viruses for study ​ 
D) produce large quantities of the inserted DNA to increase yields of a target product ​ 
E) introduce new genes into a bacterium's mitochondrial DNA ​ 
A) generate bacteria with an F factor for conjugation 
B) understand how bacteriophages transfer DNA to bacteria ​ 
C) obtain large quantities of viruses for study ​ 
D) produce large quantities of the inserted DNA to increase yields of a target product ​ 
E) introduce new genes into a bacterium's mitochondrial DNA ​

Question 11

For some virulent phages, fragments of the host DNA may be included in the heads as the viral particles assemble, providing the basis for ____. ​

Accepted Answer

A) transformation 
B) transmutation ​ 
C) metabolism ​ 
D) specific transduction ​ 
E) generalized transduction ​ 
A) transformation 
B) transmutation ​ 
C) metabolism ​ 
D) specific transduction ​ 
E) generalized transduction ​

Question 12

Hfr cells are bacterial cells that ____. ​

Accepted Answer

A) perform meiosis 
B) have the F factor integrated into their chromosome ​ 
C) maintain the F factor in a plasmid ​ 
D) have a low frequency of recombination ​ 
E) have received DNA from a bacteriophage ​ 
A) perform meiosis 
B) have the F factor integrated into their chromosome ​ 
C) maintain the F factor in a plasmid ​ 
D) have a low frequency of recombination ​ 
E) have received DNA from a bacteriophage ​

Question 13

Cultures of genetically identical cells are called ____. ​

Accepted Answer

A) bacteriophages 
B) clones ​ 
C) prophages ​ 
D) prions ​ 
E) auxotrophs ​ 
A) bacteriophages 
B) clones ​ 
C) prophages ​ 
D) prions ​ 
E) auxotrophs ​

Question 14

Auxotrophs ____. ​

Accepted Answer

A) are nutritional-requirement mutants 
B) can grow on minimal media ​ 
C) feed on proteins ​ 
D) make their own nutrients ​ 
E) produce antibiotics ​ 
A) are nutritional-requirement mutants 
B) can grow on minimal media ​ 
C) feed on proteins ​ 
D) make their own nutrients ​ 
E) produce antibiotics ​

Question 15

Prions ____. ​

Accepted Answer

A) are more complex than viruses 
B) have large DNA genomes ​ 
C) cause neurodegenerative disorders in mammals ​ 
D) infect plant cells ​ 
E) encode their own polymerases for nucleic acid replication ​ 
A) are more complex than viruses 
B) have large DNA genomes ​ 
C) cause neurodegenerative disorders in mammals ​ 
D) infect plant cells ​ 
E) encode their own polymerases for nucleic acid replication ​

Question 16

Some animal viruses may enter a ____ stage in which the virus remains in the cell in inactive form. ​

Accepted Answer

A) latent 
B) virulent ​ 
C) temperate ​ 
D) transformation ​ 
E) lytic ​ 
A) latent 
B) virulent ​ 
C) temperate ​ 
D) transformation ​ 
E) lytic ​

Question 17

Figure 17.1
Use the accompanying figure for questions 9-11.
The gene that governs a cell's ability to synthesize biotin from inorganic precursors is labeled " bio ". The designation bio+ indicates the ____. ​

Accepted Answer

A) normal allele 
B) mutant allele ​ 
C) bacterium is biologically active ​ 
D) bacterium is biologically inactive ​ 
E) bacterium cannot make its own biotin ​ 
A) normal allele 
B) mutant allele ​ 
C) bacterium is biologically active ​ 
D) bacterium is biologically inactive ​ 
E) bacterium cannot make its own biotin ​

Question 18

R plasmids provide ____. ​

Accepted Answer

A) antibiotic resistance 
B) a fertility factor ​ 
C) transformation ability ​ 
D) genes necessary for genetic recombination ​ 
E) nutrients ​ 
A) antibiotic resistance 
B) a fertility factor ​ 
C) transformation ability ​ 
D) genes necessary for genetic recombination ​ 
E) nutrients ​

Question 19

DNA can be transferred from one bacterial cell to another by ____. ​

Accepted Answer

A) conjugation only 
B) transformation only ​ 
C) conjugation and transformation only ​ 
D) conjugation and transduction only ​ 
E) conjugation, transformation, and transduction ​ 
A) conjugation only 
B) transformation only ​ 
C) conjugation and transformation only ​ 
D) conjugation and transduction only ​ 
E) conjugation, transformation, and transduction ​

Question 20

Match between columns
                        Premises: Capsid

Accepted Answer

The Answer of The cycle in which a virulent phage is...

Exam 17: Bacterial and Viral Genetics

The pattern of gene transfer from Hfr to F- cells ____. ​

Viruses that kill bacterial host cells during each cycle of infection are called ____. ​

The ability to conjugate depends on the presence of a plasmid called the ____ within the donor cell. ​

Retroviruses ____. ​

The movement of genetic material between organisms other than by descent is called ____. ​

Electroporation ____. ​

Transformation is used in genetic engineering to ____. ​

For some virulent phages, fragments of the host DNA may be included in the heads as the viral particles assemble, providing the basis for ____. ​

Hfr cells are bacterial cells that ____. ​

Cultures of genetically identical cells are called ____. ​

Auxotrophs ____. ​

Prions ____. ​

Some animal viruses may enter a ____ stage in which the virus remains in the cell in inactive form. ​

Figure 17.1 Use the accompanying figure for questions 9-11. The gene that governs a cell's ability to synthesize biotin from inorganic precursors is labeled " bio ". The designation bio+ indicates the ____. ​

R plasmids provide ____. ​

DNA can be transferred from one bacterial cell to another by ____. ​

Introduction to Biological Concepts and Research

Life, Chemistry, and Water

Biological Molecules: the Carbon Compounds of Life

Cells

Membranes and Transport

Energy, Enzymes, and Biological Reactions

Cellular Respiration: Harvesting Chemical Energy

Photosynthesis

Cell Communication

Cell Division and Mitosis

Meiosis: the Cellular Basis of Sexual Reproduction

Mendel, Genes, and Inheritance

Genes, Chromosomes, and Human Genetics

DNA Structure, Replication, and Organization

From DNA to Protein

Regulation of Gene Expression

Dna Technologies: Making and Using Genetically Altered Organisms, and Other Applications

Genomes and Proteomes

The Development of Evolutionary Thought

Microevolution: Genetic Changes Within Populations

Speciation

Paleobiology and Macroevolution

Systematic Biology: Phylogeny and Classification

The Origin of Life

Prokaryotes and Viruses

Protists

Seedless Plants

Seed Plants

Fungi

Animal Phylogeny, Acoelomates, and Protostomes

Deuterostomes: Vertebrates and Their Closest Relatives

The Plant Body

Transport in Plants

Plant Nutrition

Reproduction and Development in Flowering Plants

Plant Signals and Responses to the Environment

Introduction to Animal Organization and Physiology

Information Flow and the Neuron

Nervous Systems

Sensory Systems

The Endocrine System

Muscles, Bones, and Body Movements

The Circulatory System

Defenses Against Disease

Gas Exchange: the Respiratory System

Animal Nutrition

Regulating the Internal Environment

Animal Reproduction

Animal Development

Ecology and the Biosphere

Population Ecology

Population Interactions and Community Ecology

Ecosystems

Biodiversity and Conservation Biology

Animal Behavior

Filters

The pattern of gene transfer from Hfr to F- cells ____.

Viruses that kill bacterial host cells during each cycle of infection are called ____.

The ability to conjugate depends on the presence of a plasmid called the ____ within the donor cell.

Retroviruses ____.

The movement of genetic material between organisms other than by descent is called ____.

Electroporation ____.

Transformation is used in genetic engineering to ____.

For some virulent phages, fragments of the host DNA may be included in the heads as the viral particles assemble, providing the basis for ____.

Hfr cells are bacterial cells that ____.

Cultures of genetically identical cells are called ____.

Auxotrophs ____.

Prions ____.

Some animal viruses may enter a ____ stage in which the virus remains in the cell in inactive form.

Figure 17.1 Use the accompanying figure for questions 9-11. The gene that governs a cell's ability to synthesize biotin from inorganic precursors is labeled " bio ". The designation bio+ indicates the ____.

R plasmids provide ____.

DNA can be transferred from one bacterial cell to another by ____.