Transformed bacterial cells may display enhanced drug resistances from the acquisition of _____. a. F factors b. M factors c. R factors d. S factors

Transformed bacterial cells may display enhanced drug resistances
from the acquisition of _____.
a. F factors
b. M factors
c. R factors
d. S factors
by

1 Answer

Answer :

c. R factors
by

Related questions

A bacterial cell that is transformed _____. a. Cannot Form A Conjugation Pilus. b. Has Undergone A Frameshift Mutation. c. Has Acquired Dna From The Environment. d. Will Probably Die Within 24 Hours.

Description : A bacterial cell that is transformed _____. a. Cannot Form A Conjugation Pilus. b. Has Undergone A Frameshift Mutation. c. Has Acquired Dna From The Environment. d. Will Probably Die Within 24 Hours.

Last Answer : c. Has Acquired Dna From The Environment.

Competence refers to a bacterial cell's ability to a. Take Up DNA Fragments From The Environment. b. Be Infected By A Transducing Phage. c. Produce A Protein Product From An Engineered Gene. d. Undergo Conjugation With An F+ Cell.

Description : Competence refers to a bacterial cell's ability to a. Take Up DNA Fragments From The Environment. b. Be Infected By A Transducing Phage. c. Produce A Protein Product From An Engineered Gene. d. Undergo Conjugation With An F+ Cell.

Last Answer : a. Take Up DNA Fragments From The Environment.

During the process of lysogeny _____. a. Phage DNA Integrates Into The Bacterial Chromosome.b. A Bacterium Acquires DNA From The External Environment. c. Competent Cells Receive Plasmids. d. New Phage Particles Are Assembled In The Host Bacterium.

Description : During the process of lysogeny _____. a. Phage DNA Integrates Into The Bacterial Chromosome. b. A Bacterium Acquires DNA From The External Environment. c. Competent Cells Receive Plasmids. d. New Phage Particles Are Assembled In The Host Bacterium.

Last Answer : a. Phage DNA Integrates Into The Bacterial Chromosome.

During the stationary phase of bacterial growth, the population of living cells is _____ the population of dying cells. a. greater than b. smaller than c. equal to d. increasing faster than

Description : During the stationary phase of bacterial growth, the population of living cells is _____ the population of dying cells. a. greater than b. smaller than c. equal to d. increasing faster than

Last Answer : c. equal to

Reproduction in bacterial cells occurs by the sequence of events known as _____. a. mitosis b. binary fission c. selfing d. budding

Description : Reproduction in bacterial cells occurs by the sequence of events known as _____. a. mitosis b. binary fission c. selfing d. budding

Last Answer : b. binary fission

Natural killer cells are involved in A- .tumour rejection B- .allograft rejection C- non-specific killing of virus transformed target cells D- all of these

Description : Natural killer cells are involved in A- .tumour rejection B- .allograft rejection C- non-specific killing of virus transformed target cells D- all of these

Last Answer : all of these

Bacillus subtilis makes a good "bacterial factory" in genetic engineering because _____. a. it normally retains the products it makes b. it is not a human pathogen c. contains endotoxins in it's cell wall d. traditionally ferments sugars

Description : Bacillus subtilis makes a good "bacterial factory" in genetic engineering because _____. a. it normally retains the products it makes b. it is not a human pathogen c. contains endotoxins in it's cell wall d. traditionally ferments sugars

Last Answer : b. it is not a human pathogen

Bacterial species in fish are naturally adapted to the cold environment in which most fish live and thus, _____ will not affect them; _____ is preferred. a. heating, cooking b. cooling, refrigeration c. warming, boiling d. cooling, freezing

Description : Bacterial species in fish are naturally adapted to the cold environment in which most fish live and thus, _____ will not affect them; _____ is preferred. a. heating, cooking b. cooling, refrigeration c. warming, boiling d. cooling, freezing

Last Answer : d. cooling, freezing

Antibiotics will not work against _____ diseases because they lack the structures and metabolic machinery with which antibiotics interfere. a. viral b. bacterial c. fungal d. protozoan

Description : Antibiotics will not work against _____ diseases because they lack the structures and metabolic machinery with which antibiotics interfere. a. viral b. bacterial c. fungal d. protozoan

Last Answer : a. viral

Gentamicin and other aminoglycoside drugs are widely prescribed for treatment of _____ infections. a. fungal b. gram-positive bacterial c. gram-negative bacterial d. staphylococcal

Description : Gentamicin and other aminoglycoside drugs are widely prescribed for treatment of _____ infections. a. fungal b. gram-positive bacterial c. gram-negative bacterial d. staphylococcal

Last Answer : c. gram-negative bacterial

The majority of bacterial species that cause foodborne and waterborne illnesses in humans are _____. a. Gram-Negative Rods b. Gram-Negative Cocci c. Gram-Positive Rods d. Rods Without A Wall

Description : The majority of bacterial species that cause foodborne and waterborne illnesses in humans are _____. a. Gram-Negative Rods b. Gram-Negative Cocci c. Gram-Positive Rods d. Rods Without A Wall

Last Answer : a. Gram-Negative Rods

The majority of bacterial species that cause foodborne and waterborne illnesses in humans are _____. a. Gram-Negative Rods b. Gram-Negative Cocci c. Gram-Positive Rods d. Rods Without A Wall

Description : The majority of bacterial species that cause foodborne and waterborne illnesses in humans are _____. a. Gram-Negative Rods b. Gram-Negative Cocci c. Gram-Positive Rods d. Rods Without A Wall

Last Answer : a. Gram-Negative Rods

When nutrients are limiting, some bacterial species can form resistant structures called _____. a. endospores b. cysts c. seeds d. capsules

Description : When nutrients are limiting, some bacterial species can form resistant structures called _____. a. endospores b. cysts c. seeds d. capsules

Last Answer : a. endospores

One of the practical applications of genetic engineering is the bacterial production of ____.a. human insulin. b. human growth hormone c. blood clotting factors VIII and IX d. antiviral proteins e. all of the above

Description : One of the practical applications of genetic engineering is the bacterial production of ____. a. human insulin. b. human growth hormone c. blood clotting factors VIII and IX d. antiviral proteins e. all of the above

Last Answer : c. blood clotting factors VIII and IX

A patient with gross fecal contamination and peritonitis from a ruptured sigmoid diverticulum has his midline wound left open to heal by secondary intention. Which of the following statement(s) describes this healing process? a. Wounds healing in this fashion have an altered sequence of healing compared to a primarily closed wound b. A bed of granulation tissue forms over exposed subcutaneous tissue c. Epithelialization is enhanced in the face of bacterial colonization d. The ability of a wound to form granulation tissue is dependent on the blood supply of the tissue

Description : A patient with gross fecal contamination and peritonitis from a ruptured sigmoid diverticulum has his midline wound left open to heal by secondary intention. Which of the following statement(s) describes this ... of a wound to form granulation tissue is dependent on the blood supply of the tissue

Last Answer : Answer: b, d Open wounds, whether they be ulcers or open surgical incisions closing by secondary intention, heal with the same sequence of inflammation, matrix deposition, epithelialization ... via bacterial and phagocytic cell products such as proteases, collagenases, elastases, and other enzymes

Are chromosomes the only parts of bacteria that can be transformed?

Description : Are chromosomes the only parts of bacteria that can be transformed?

Last Answer : Bacteria possess extrachromosomal loops of DNA called plasmids. Plasmids are small, self-replicating loops of DNA with about 10 to 50 genes. They are not essential for the survival of the ... process called curing, which can occur spontaneously or can be induced by certain environmental factors. 

Which one of the following is NOT true of exotoxins? a. They are proteins. b. They are part of cell wall structure. c. They are released from live bacterial cells. d. They trigger antibody production.

Description : Which one of the following is NOT true of exotoxins? a. They are proteins. b. They are part of cell wall structure. c. They are released from live bacterial cells. d. They trigger antibody production.

Last Answer : d. They trigger antibody production.

A healthy person can be diagnosed as having a infection with the multiplication of bacterial cells in the blood. a. Primary; bacteremia b. Primary; vermeil c. Primary; septicemia d. Secondary; parasitemia

Description : A healthy person can be diagnosed as having a infection with the multiplication of bacterial cells in the blood. a. Primary; bacteremia b. Primary; vermeil c. Primary; septicemia d. Secondary; parasitemia

Last Answer : c. Primary; septicemia

The skin is a. Dominated By Gram-Negative Bacterial Cells. b. Free Of Bacterial Cells. c. Without A Microbiota.d. Dominated By Gram-Positive Bacterial Cells.

Description : The skin is a. Dominated By Gram-Negative Bacterial Cells. b. Free Of Bacterial Cells. c. Without A Microbiota. d. Dominated By Gram-Positive Bacterial Cells.

Last Answer : d. Dominated By Gram-Positive Bacterial Cells.

Which of the following is NOT a type of horizontal gene transfer between bacterial cells? a. transformation b. conjugation c. transduction d. translation

Description : Which of the following is NOT a type of horizontal gene transfer between bacterial cells? a. transformation b. conjugation c. transduction d. translation

Last Answer : d. translation

Transposons are of particular significance because they a. often contain genes for antibiotic resistance. b. inhibit the effects of overlapping genes. c. come in pairs and often are associated with viruses. d. regulate gene transcription in bacterial cells.

Description : Transposons are of particular significance because they a. often contain genes for antibiotic resistance. b. inhibit the effects of overlapping genes. c. come in pairs and often are associated with viruses. d. regulate gene transcription in bacterial cells.

Last Answer : a. often contain genes for antibiotic resistance.

The promoter on an expression vector used to overproduce proteins in bacteria is A.a bacterial promoter B.expressed both in bacteria and mammalian cells C.not a regulated promoterD.the natural promoter of the gene being cloned

Description : The promoter on an expression vector used to overproduce proteins in bacteria is A.a bacterial promoter B.expressed both in bacteria and mammalian cells C.not a regulated promoter D.the natural promoter of the gene being cloned

Last Answer : A.a bacterial promoter

Bacterial cells susceptible to penicillium can be protected from destruction if the medium in which they are exposed is of A- high osmotic pressure B- low osmotic pressure C- moderate osmotic pressure D- high surface tension

Description : Bacterial cells susceptible to penicillium can be protected from destruction if the medium in which they are exposed is of A- high osmotic pressure B- low osmotic pressure C- moderate osmotic pressure D- high surface tension

Last Answer : high osmotic pressure

The first step in infection of a host bacterial cells by a phage is A- adsorption B- absorption C- penetration D- replication

Description : The first step in infection of a host bacterial cells by a phage is A- adsorption B- absorption C- penetration D- replication

Last Answer : adsorption

Treatment with bacterial endotoxins results blast formation in A- .B cells B- T cells C- Monocytes D- none of these

Description : Treatment with bacterial endotoxins results blast formation in A- .B cells B- T cells C- Monocytes D- none of these

Last Answer : B cells

Which one of the following is NOT a structure or subcompartment found in bacterial cells? a. Micro compartments b. Volutin c. Ribosomes d. Mitochondria

Description : Which one of the following is NOT a structure or subcompartment found in bacterial cells? a. Micro compartments b. Volutin c. Ribosomes d. Mitochondria

Last Answer : d. Mitochondria

Flagella are a. Made of carbohydrate and lipid. b. Found on all bacterial cells. c. Contain dextran fiber d. Important for chemo taxis.

Description : Flagella are a. Made of carbohydrate and lipid. b. Found on all bacterial cells. c. Contain dextran fiber d. Important for chemo taxis.

Last Answer : d. Important for chemo taxis.

Spherical bacterial cells in chains would be a referred to as a _______ arrangement. a. Vibrio b. Streptococcus c. Staphylococcus d. Tetrad

Description : Spherical bacterial cells in chains would be a referred to as a _______ arrangement. a. Vibrio b. Streptococcus c. Staphylococcus d. Tetrad

Last Answer : b. Streptococcus

Which of the following do some bacterial cells use for motility? a. flagella b. cillia c. fimbriae d. pseudopodia

Description : Which of the following do some bacterial cells use for motility? a. flagella b. cillia c. fimbriae d. pseudopodia

Last Answer : a. flagella

Bacterial cells in biofilms can communicate with each other through a. osmosis b. quorum sensing c. diffusion d. enzymes

Description : Bacterial cells in biofilms can communicate with each other through a. osmosis b. quorum sensing c. diffusion d. enzymes

Last Answer : b. quorum sensing

Before bacterial cells are simple stained and observed with the light microscope, they must be a. Smeared on a slide. b. Heat fixed. c. Air dried. d. All the above (A—C) are correct.

Description : Before bacterial cells are simple stained and observed with the light microscope, they must be a. Smeared on a slide. b. Heat fixed. c. Air dried. d. All the above (A—C) are correct.

Last Answer : d. All the above (A—C) are correct.

Most bacterial cells are measured using what metric system of length? a. Millimeters (mm) b. Micrometers (µm) c. Nanometers (nm) d. Centimeters (cm)

Description : Most bacterial cells are measured using what metric system of length? a. Millimeters (mm) b. Micrometers (µm) c. Nanometers (nm) d. Centimeters (cm)

Last Answer : b. Micrometers (µm)

Which one of the following is NOT found in bacterial cells? a. Ribosomes b. DNA c. Mitochondria d. Cytoplasm

Description : Which one of the following is NOT found in bacterial cells? a. Ribosomes b. DNA c. Mitochondria d. Cytoplasm

Last Answer : c. Mitochondria

Who was the first person to see bacterial cells with the microscope? a. Pasteur b. Koch c. Leeuwenhoek d. Hooke

Description : Who was the first person to see bacterial cells with the microscope? a. Pasteur b. Koch c. Leeuwenhoek d. Hooke

Last Answer : c. Leeuwenhoek

During Griffith's transformation experiments _____. a. Live S Strain Bacteria Mixed With Dead R Strain Bacteria Caused Animal Death. b. Live S Strain Bacteria Mixed With Dead R Strain Bacteria Failed To Kill The Animals. c. Dead S Strain Bacteria Mixed With Live R Strain Bacteria Caused Animal Death. d. Dead S Strain Bacteria Mixed With Live R Strain Bacteria Failed To Kill The Animals.

Description : During Griffith's transformation experiments _____. a. Live S Strain Bacteria Mixed With Dead R Strain Bacteria Caused Animal Death. b. Live S Strain Bacteria Mixed With Dead R Strain Bacteria Failed To ... . d. Dead S Strain Bacteria Mixed With Live R Strain Bacteria Failed To Kill The Animals.

Last Answer : c. Dead S Strain Bacteria Mixed With Live R Strain Bacteria Caused Animal Death.

The term used for acquisition of naked DNA from its environment and its incorporation in their genome by a bacterium is A.transformation B.lysogenic conversion C.conjugation D.transduction

Description : The term used for acquisition of naked DNA from its environment and its incorporation in their genome by a bacterium is A.transformation B.lysogenic conversion C.conjugation D.transduction

Last Answer : A.transformation

The acquisition energy by glucose fermentation requires A.substrate-level phosphorylation B.electron transport of electrons from NADH C.long-chain fatty acid oxidation D.the enzyme formic-hydrogen lyase

Description : The acquisition energy by glucose fermentation requires A.substrate-level phosphorylation B.electron transport of electrons from NADH C.long-chain fatty acid oxidation D.the enzyme formic-hydrogen lyase

Last Answer : A.substrate-level phosphorylation

The term used for acquisition of naked DNA from its environment and its incorporation in theirgenome by a bacterium is A- transformation B- lysogenic conversion C- conjugation D- .transduction

Description : The term used for acquisition of naked DNA from its environment and its incorporation in theirgenome by a bacterium is A- transformation B- lysogenic conversion C- conjugation D- .transduction

Last Answer : transformation

The term used for acquisition of naked DNA from its environment and its incorporation in their A- transformation B- lysogenic conversion C- conjugation D- transduction

Description : The term used for acquisition of naked DNA from its environment and its incorporation in their A- transformation B- lysogenic conversion C- conjugation D- transduction

Last Answer : transformation

Which of the following statement(s) is/are true in regards to F+ x F- mating events? A- DNA is transferred from F- to F+ cells B- DNA is transferred from F+ to F- cells C- No DNA is transferred because F- cells are unable to perform conjugation D- No DNA is transferred because F+ cells are unable to perform conjugation

Description : Which of the following statement(s) is/are true in regards to F+ x F- mating events? A- DNA is transferred from F- to F+ cells B- DNA is transferred from F+ to F- cells C- No ... F- cells are unable to perform conjugation D- No DNA is transferred because F+ cells are unable to perform conjugation

Last Answer : DNA is transferred from F+ to F- cells

Plasmids a. Replicate with the bacterial chromosome. b. Contain essential growth information. c. May contain antibiotic resistance genes. d. Are as large as the bacterial chromosome.

Description : Plasmids a. Replicate with the bacterial chromosome. b. Contain essential growth information. c. May contain antibiotic resistance genes. d. Are as large as the bacterial chromosome.

Last Answer : c. May contain antibiotic resistance genes.

Which one of the following statements about ampicillin is false? (a) Its activity is enhanced by sulbactam (b) It causes maculopapular rashes (c) It is the drug of choice for Listeria monocytogenes infection (d) It eradicates most strains of MRSA (e) Pseudomembranous colitis may occur with its use

Description : Which one of the following statements about ampicillin is false? (a) Its activity is enhanced by sulbactam (b) It causes maculopapular rashes (c) It is the drug of choice for Listeria monocytogenes infection (d) It eradicates most strains of MRSA (e) Pseudomembranous colitis may occur with its use

Last Answer : Ans: D

Sum of e.m.f around any loop equals A. sum of current B. sum of potential difference C. sum of resistances D. sum of charges passing through it per second

Description : Sum of e.m.f around any loop equals A. sum of current B. sum of potential difference C. sum of resistances D. sum of charges passing through it per second

Last Answer : sum of potential difference

Acute bacterial meningitis can begin with ____ that develops into a blood infection that then invades the meninges. a. N. meningitidis b. S. pneumoniae c. H. influenzae d. A-C are correct

Description : Acute bacterial meningitis can begin with ____ that develops into a blood infection that then invades the meninges. a. N. meningitidis b. S. pneumoniae c. H. influenzae d. A-C are correct

Last Answer : d. A-C are correct

Swimmer‘s ear is a common name for a infection of the_________ ear. a. Bacterial; Outer b. Viral; Outer c. Bacterial; Middle d. Viral; Inner

Description : Swimmer‘s ear is a common name for a infection of the_________ ear. a. Bacterial; Outer b. Viral; Outer c. Bacterial; Middle d. Viral; Inner

Last Answer : a. Bacterial; Outer

Isoniazid has a very narrow drug spectrum as the active form of the drug specifically interferes with cell wall synthesis in _____ by inhibiting the production of mycolic acid in the cell wall. a. Staphylococcus b. Streptococcus c. Enterococcus d. Mycobacterium

Description : Isoniazid has a very narrow drug spectrum as the active form of the drug specifically interferes with cell wall synthesis in _____ by inhibiting the production of mycolic acid in the cell wall. a. Staphylococcus b. Streptococcus c. Enterococcus d. Mycobacterium

Last Answer : d. Mycobacterium

_____ is when an antimicrobial drug should harm the infectious agent but not the host. a. Selective toxicity b. Toxic dose c. Therapeutic dose d. Chemotherapeutic index

Description : _____ is when an antimicrobial drug should harm the infectious agent but not the host. a. Selective toxicity b. Toxic dose c. Therapeutic dose d. Chemotherapeutic index

Last Answer : a. Selective toxicity

The immune system originates with a primordial cell of the fetus known as the _____ stem cella. T b. dendritic c. monocyte d. hematopoietic 18: Which one of the f.

Description : The immune system originates with a primordial cell of the fetus known as the _____ stem cell. a. T b. dendritic c. monocyte d. hematopoietic 18: Which one of the f

Last Answer : d. hematopoietic

A plasmid carries _____. a. Nonessential Genes b. Resistance Factors c. Genes For Toxinsd. all the above

Description : A plasmid carries _____. a. Nonessential Genes b. Resistance Factors c. Genes For Toxins d. all the above

Last Answer : d. all the above

The most important mechanism of bacterial resistance to an aminoglycoside antibiotic is (a) Plasmid mediated acquisition of aminoglycoside conjugating enzyme (b) Mutational acquisition of aminoglycoside hydrolyzing enzyme (c) Mutation reducing affinity of ribosomal protein for the antibiotic (d) Mutational loss of porin channels

Description : The most important mechanism of bacterial resistance to an aminoglycoside antibiotic is (a) Plasmid mediated acquisition of aminoglycoside conjugating enzyme (b) Mutational acquisition of aminoglycoside ... affinity of ribosomal protein for the antibiotic (d) Mutational loss of porin channels

Last Answer : Ans: A