Question 1

A cell with an F factor integrated into the bacterial chromosome is called __________.

Accepted Answer

A)  Hfr 
B)  F+ 
C)  Conjugative plasmid 
A)  Hfr 
B)  F+ 
C)  Conjugative plasmid A

Question 2

Which of the following is correct regarding a prophage?

Accepted Answer

A) It is used by virulent phages 
B) It is used in the lytic cycle of viral replication 
C) It does not directly enter into the cell being infected 
D) It is copied along with the bacterial chromosome during replication 
A) It is used by virulent phages 
B) It is used in the lytic cycle of viral replication 
C) It does not directly enter into the cell being infected 
D) It is copied along with the bacterial chromosome during replication D

Question 3

The process of interrupted mating may be used to do which of the following?

Accepted Answer

A)  Inhibit transduction 
B)  Convert the recipient cell to F+ 
C)  Determine the relative position of bacterial genes 
D)  Alter the genotype of the donor cell 
A)  Inhibit transduction 
B)  Convert the recipient cell to F+ 
C)  Determine the relative position of bacterial genes 
D)  Alter the genotype of the donor cell C

Question 4

A structure called a(n) _______ allows the transfer of genetic information during conjugation.

Accepted Answer

A)  F factor 
B)  plasmid 
C)  sex pilus 
D)  transformation bridge 
A)  F factor 
B)  plasmid 
C)  sex pilus 
D)  transformation bridge

Question 5

During conjugation, one gene (A) is found to transfer to the recipient bacteria 26 minutes following the start of conjugation, while a second gene (M) is found to transfer 37 minutes following the start of conjugation. A third gene (T) transfers 45 minutes following the start of conjugation. Based on this information, which of the following is true?

Accepted Answer

A)  Genes A and M have a genetic distance of 11 minutes 
B)  Genes A and T have a genetic distance of 19 minutes 
C)  Genes M and t have a genetic distance of 8 minutes 
D)  The order of the genes is A M T 
E)  All of the answers are correct 
A)  Genes A and M have a genetic distance of 11 minutes 
B)  Genes A and T have a genetic distance of 19 minutes 
C)  Genes M and t have a genetic distance of 8 minutes 
D)  The order of the genes is A M T 
E)  All of the answers are correct

Question 6

Loss of function mutations are easier to study in _______ organisms, such as bacteria.

Accepted Answer

A)  haploid 
B)  diploid 
C)  triploid 
A)  haploid 
B)  diploid 
C)  triploid

Question 7

In conjugation the DNA that will be transferred from the donor cell to the recipient cell is

Accepted Answer

A)  single-stranded. 
B)  double-stranded. 
C)  triple-stranded. 
D)  a mixture of single and double stranded. 
A)  single-stranded. 
B)  double-stranded. 
C)  triple-stranded. 
D)  a mixture of single and double stranded.

Question 8

Who was the first to discover the process of natural transformation?

Accepted Answer

A)  Morgan 
B)  Sturtevant 
C)  Griffith 
D)  Avery 
A)  Morgan 
B)  Sturtevant 
C)  Griffith 
D)  Avery

Question 9

Which of the following is true regarding bacterial genetics?

Accepted Answer

A) Bacteria are usually diploid organisms 
B) Bacteria primarily reproduce sexually 
C) The patterns of inheritance in bacteria are studied using different mechanisms than eukaryotes 
D) Bacteria generally have linear chromosomes 
A) Bacteria are usually diploid organisms 
B) Bacteria primarily reproduce sexually 
C) The patterns of inheritance in bacteria are studied using different mechanisms than eukaryotes 
D) Bacteria generally have linear chromosomes

Question 10

Acquired antibiotic resistance between two different species is an example of vertical gene transfer.

Accepted Answer

A) True 
 B)False

Question 11

How can the complementation test discriminate between two viruses that have a mutation in the same gene versus two viruses that have mutations in the same gene?

Accepted Answer

A)  If the viruses have mutations in the same gene then, depending on the assay, a significant number of plaques will be produced or a significant number of plaques will have a wildtype phenotype. If the mutations are in the different genes few, if any, wild type plaques will be seen.. 
B)  If the viruses have mutations in different genes then, depending on the assay, a significant number of plaques will be produced or a significant number of plaques will have a wildtype phenotype. If the mutations are in the same gene few, if any, wild type plaques will be seen. 
C)  If the mutations are in the same gene the complementation test will result in recombinant viruses that are wildtype but if the mutations are in different genes no recombinant viruses will be produced. 
D)  If the mutations are in different genes the complementation test will result in recombinant viruses that are wildtype but if the mutations are in the same gene no recombinant viruses will be produced. 
A)  If the viruses have mutations in the same gene then, depending on the assay, a significant number of plaques will be produced or a significant number of plaques will have a wildtype phenotype. If the mutations are in the different genes few, if any, wild type plaques will be seen.. 
B)  If the viruses have mutations in different genes then, depending on the assay, a significant number of plaques will be produced or a significant number of plaques will have a wildtype phenotype. If the mutations are in the same gene few, if any, wild type plaques will be seen. 
C)  If the mutations are in the same gene the complementation test will result in recombinant viruses that are wildtype but if the mutations are in different genes no recombinant viruses will be produced. 
D)  If the mutations are in different genes the complementation test will result in recombinant viruses that are wildtype but if the mutations are in the same gene no recombinant viruses will be produced.

Question 12

The process of conjugation may introduce new alleles into the recipient strain, altering its genotype.

Accepted Answer

A) True 
 B)False

Question 13

Competence factors do which of the following?

Accepted Answer

A)  Allow the formation of a sex pilus 
B)  Promote bacteriophages binding for transduction 
C)  Allow DNA in the environment to bind to the cell surface 
D)  Inhibit genetic transfer between donor and recipient cells 
A)  Allow the formation of a sex pilus 
B)  Promote bacteriophages binding for transduction 
C)  Allow DNA in the environment to bind to the cell surface 
D)  Inhibit genetic transfer between donor and recipient cells

Question 14

A histidine, methionine auxotroph _________.

Accepted Answer

A)  can synthesize only histidine and methionine 
B)  can only use histidine and methionine as nutrition sources 
C)  cannot synthesize histidine and methionine 
D)  is killed by histidine and methionine 
E)  lacks proteins with histidine or methionine 
A)  can synthesize only histidine and methionine 
B)  can only use histidine and methionine as nutrition sources 
C)  cannot synthesize histidine and methionine 
D)  is killed by histidine and methionine 
E)  lacks proteins with histidine or methionine

Question 15

First observed by Lederberg and Zinder (1952) in Salmonella typhimurium.

Accepted Answer

A)  Transformation 
B)  Transduction 
C)  Conjugation 
D)  All of the answers are correct 
A)  Transformation 
B)  Transduction 
C)  Conjugation 
D)  All of the answers are correct

Question 16

Most biologists consider viruses to be living organisms, which are classified with the bacteria.

Accepted Answer

A) True 
 B)False

Question 17

What is the order of the genes in the question?

Accepted Answer

A)  abc 
B)  bac 
C)  acb 
A)  abc 
B)  bac 
C)  acb

Question 18

A minute is the basic unit of map distance in bacteria.

Accepted Answer

A) True 
 B)False

Question 19

What is the maximum size of the

Accepted Answer

A)  10%-20% 
B)  30% 
C)  0.5%-1% 
D)  1%-2.5% 
E) coli chromosome capable of being carried by a P1 phage? 
A)  10%-20% 
B)  30% 
C)  0.5%-1% 
D)  1%-2.5% 
E) coli chromosome capable of being carried by a P1 phage?

Question 20

Which of the following represents a mechanism of genetic transfer in bacteria?

Accepted Answer

A)  Transformation 
B)  Transduction 
C)  Conjugation 
D)  All of the answers are correct 
A)  Transformation 
B)  Transduction 
C)  Conjugation 
D)  All of the answers are correct

Exam 7: Genetic Transfer and Mapping in Bacteria and Bacteriophages

A cell with an F factor integrated into the bacterial chromosome is called __________.

Which of the following is correct regarding a prophage?

The process of interrupted mating may be used to do which of the following?

A structure called a(n) _______ allows the transfer of genetic information during conjugation.

Loss of function mutations are easier to study in _______ organisms, such as bacteria.

In conjugation the DNA that will be transferred from the donor cell to the recipient cell is

Who was the first to discover the process of natural transformation?

Which of the following is true regarding bacterial genetics?

Acquired antibiotic resistance between two different species is an example of vertical gene transfer.

How can the complementation test discriminate between two viruses that have a mutation in the same gene versus two viruses that have mutations in the same gene?

The process of conjugation may introduce new alleles into the recipient strain, altering its genotype.

Competence factors do which of the following?

A histidine, methionine auxotroph _________.

First observed by Lederberg and Zinder (1952) in Salmonella typhimurium.

Most biologists consider viruses to be living organisms, which are classified with the bacteria.

What is the order of the genes in the question?

A minute is the basic unit of map distance in bacteria.

What is the maximum size of the

Which of the following represents a mechanism of genetic transfer in bacteria?

Overview of Genetics

Mendelian Inheritance

Chromosome Transmission During Cell Division and Sexual Reproduction

Extensions of Mendelian Inheritance

Non-Mendelian Inheritance

Genetic Linkage and Mapping in Eukaryotes

Variation in Chromosome Structure and Number

Molecular Structure of DNA and RNA

Chromosome Organization and Molecular Structure

DNA Replication

Gene Transcription and RNA Modification

Translation of MRNA

Gene Regulation in Bacteria

Gene Regulation in Eukaryotes I: Transcriptional Regulation

Gene Regulation in Eukaryotes II: Epigenetics and Regulation at the RNA Level

Genetics of Viruses

Gene Mutation and Dna Repair

Recombination and Transposition at the Molecular Level

DNA Technologies

Biotechnology

Genomics I: Analysis of DNA

Genomics II: Functional Genomics, Proteomics, and Bioinformatics

Medical Genetics and Cancer

Developmental Genetics

Population Genetics

Quantitative Genetics

Evolutionary Genetics

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