Question 1

Which of the following is the anti-codon corresponding to methionine

Accepted Answer

A) AUG 
B) GAC 
C) CUG 
D) UAC 
A) AUG 
B) GAC 
C) CUG 
D) UAC

Question 2

Mutations:

Accepted Answer

A) when occurring on a particular Okazaki fragment can lead to different loci 
B) often change a person's blood from type A to type AB 
C) are responsible for heritable variations seen in progeny 
D) occur only when the DNA is transmitted to a daughter cell 
A) when occurring on a particular Okazaki fragment can lead to different loci 
B) often change a person's blood from type A to type AB 
C) are responsible for heritable variations seen in progeny 
D) occur only when the DNA is transmitted to a daughter cell

Question 3

In order for beta-galactosidase,permease and transacetylase to be produced,____ can cause the operator to initiate transcription.

Accepted Answer

A) mRNA 
B) lac operon 
C) repressor proteins 
D) RNA polymerase 
A) mRNA 
B) lac operon 
C) repressor proteins 
D) RNA polymerase

Question 4

In an enzyme catalyzed reaction that displays feedback inhibition,_____

Accepted Answer

A) excess substrate will inhibit the reaction. 
B) excess product will inhibit the reaction. 
C) the reaction continues at the same pace regardless of conditions in the cell. 
D) excess product is broken down to create new substrate. 
A) excess substrate will inhibit the reaction. 
B) excess product will inhibit the reaction. 
C) the reaction continues at the same pace regardless of conditions in the cell. 
D) excess product is broken down to create new substrate.

Question 5

Inducible enzymes:

Accepted Answer

A) are synthesized continuously by the cell 
B) are produced by genes that are always active 
C) are synthesized by genes that are sometimes active and sometimes inactive 
D) only exist in prokaryotic organisms 
A) are synthesized continuously by the cell 
B) are produced by genes that are always active 
C) are synthesized by genes that are sometimes active and sometimes inactive 
D) only exist in prokaryotic organisms

Question 6

A frameshift mutation occurs when:

Accepted Answer

A) an adenine is inserted into the DNA sequence of an organism 
B) a thymine replaces a guanine in the DNA sequence of an organism 
C) three new bases are inserted into the DNA strand 
D) three bases are deleted from the DNA strand 
A) an adenine is inserted into the DNA sequence of an organism 
B) a thymine replaces a guanine in the DNA sequence of an organism 
C) three new bases are inserted into the DNA strand 
D) three bases are deleted from the DNA strand

Question 7

Which statement about mutations is false

Accepted Answer

A) A mutation can alter the genotype of an organism without altering the phenotype. 
B) Frameshift mutations are typically more serious than point mutations. 
C) Spontaneous mutations are the result of exposure to mutagens. 
D) Photoreactivation can take place in non-photosynthetic bacteria. 
A) A mutation can alter the genotype of an organism without altering the phenotype. 
B) Frameshift mutations are typically more serious than point mutations. 
C) Spontaneous mutations are the result of exposure to mutagens. 
D) Photoreactivation can take place in non-photosynthetic bacteria.

Question 8

The tryptophan (trp)operon is turned on (i.e.gene expression occurs)when:

Accepted Answer

A) there is a great deal of tryptophan in the cell 
B) there is a lack of tryptophan in the cell 
C) the trp operon is always turned on 
D) the trp operon is always turned off 
A) there is a great deal of tryptophan in the cell 
B) there is a lack of tryptophan in the cell 
C) the trp operon is always turned on 
D) the trp operon is always turned off

Question 9

The Ames test is used to determine if a chemical:

Accepted Answer

A) increases the rate at which a bacterial cell divides 
B) decreases the number of cells in a culture 
C) induces mutations in a cell's DNA 
D) decreases the ability of a cell to photosynthesize 
A) increases the rate at which a bacterial cell divides 
B) decreases the number of cells in a culture 
C) induces mutations in a cell's DNA 
D) decreases the ability of a cell to photosynthesize

Question 10

An anticodon would be found in/on a ________ molecule.

Accepted Answer

A) mRNA 
B) tRNA 
C) the lagging strand 
D) rRNA 
A) mRNA 
B) tRNA 
C) the lagging strand 
D) rRNA

Question 11

A linear sequence of DNA nucleotides which provides the genetic information for a single characteristic is a _____.

Accepted Answer

A) chromosome 
B) plasmid 
C) gene 
D) base pair 
A) chromosome 
B) plasmid 
C) gene 
D) base pair

Question 12

Okazaki fragments make up part of the _____.

Accepted Answer

A) small ribosomal subunit 
B) tRNA 
C) lagging strand of newly synthesized DNA 
D) mRNA 
A) small ribosomal subunit 
B) tRNA 
C) lagging strand of newly synthesized DNA 
D) mRNA

Which of the following is the anti-codon corresponding to methionine

Mutations:

In order for beta-galactosidase,permease and transacetylase to be produced,____ can cause the operator to initiate transcription.

In an enzyme catalyzed reaction that displays feedback inhibition,_____

Inducible enzymes:

A frameshift mutation occurs when:

Which statement about mutations is false

The tryptophan (trp)operon is turned on (i.e.gene expression occurs)when:

The Ames test is used to determine if a chemical:

An anticodon would be found in/on a ________ molecule.

A linear sequence of DNA nucleotides which provides the genetic information for a single characteristic is a _____.

Okazaki fragments make up part of the _____.

Scope and History of Microbiology

The Microbiome

Fundamentals of Chemistry

Microscopy and Staining

Characteristics of Prokaryotic and Eukaryotic Cells

Essential Concepts of Metabolism

Growth and Culturing of Bacteria

Gene Transfer and Genetic Engineering

An Introduction to Taxonomy: The Bacteria

Viruses

Eukaryotic Microorganisms and Parasites

Sterilization and Disinfection

Antimicrobial Therapy

Host-Microbe Relationships and Disease Processes

Epidemiology and Nosocomial Infections

Innate Host Defenses

Basic Principles of Adaptive Immunity and Immunization

Immune Disorders

Diseases of the Skin and Eyes; Wounds and Bites

Urogenital and Sexually Transmitted Diseases

Diseases of the Respiratory System

Oral and Gastrointestinal Diseases

Cardiovascular, Lymphatic, and Systemic Diseases

Diseases of the Nervous System

Environmental Microbiology

Applied Microbiology

Filters

Exam 8: Microbial Genetics

Which of the following is the anti-codon corresponding to methionine

Mutations:

In order for beta-galactosidase,permease and transacetylase to be produced,____ can cause the operator to initiate transcription.

In an enzyme catalyzed reaction that displays feedback inhibition,_____

Inducible enzymes:

A frameshift mutation occurs when:

Which statement about mutations is false

The tryptophan (trp)operon is turned on (i.e.gene expression occurs)when:

The Ames test is used to determine if a chemical:

An anticodon would be found in/on a ________ molecule.

A linear sequence of DNA nucleotides which provides the genetic information for a single characteristic is a _____.

Okazaki fragments make up part of the _____.

Scope and History of Microbiology

The Microbiome

Fundamentals of Chemistry

Microscopy and Staining

Characteristics of Prokaryotic and Eukaryotic Cells

Essential Concepts of Metabolism

Growth and Culturing of Bacteria

Gene Transfer and Genetic Engineering

An Introduction to Taxonomy: The Bacteria

Viruses

Eukaryotic Microorganisms and Parasites

Sterilization and Disinfection

Antimicrobial Therapy

Host-Microbe Relationships and Disease Processes

Epidemiology and Nosocomial Infections

Innate Host Defenses

Basic Principles of Adaptive Immunity and Immunization

Immune Disorders

Diseases of the Skin and Eyes; Wounds and Bites

Urogenital and Sexually Transmitted Diseases

Diseases of the Respiratory System

Oral and Gastrointestinal Diseases

Cardiovascular, Lymphatic, and Systemic Diseases

Diseases of the Nervous System

Environmental Microbiology

Applied Microbiology

Filters