Homework Answers
21. Temperate phages .
22. (D) Homologous DNA recombination.
23. Horizontal gene transfer allows new variants to arise without a mutation in that variant.The antibiotic resistance increasing from natural selection ,bacteria can recieve genetic material through the process of horizontal gene tranfer.Horizontal gene transfer contributes to the spread of antibiotic resistance through the exchange of genetic material across genera ,which increases the potential for a harmful , antibiotic resistant bacteria to develop.Horizontal gene transfer in pathogens leading to the exchange of virulence genes that could contribute to the emergence of new "superbugs".
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22. In transformation, transduction or conjugation, what process is necessary for the donor chromosomal DNA to...
Please classify each statement as describing transformation, conjugation, or transduction in bacteria. Bacteria can acquire plasmids...
Please classify each statement as describing transformation, conjugation, or transduction in bacteria. Bacteria can acquire plasmids from outside the cell. A bacterium that contains an F plasmid connects to a recipient bacterium that lacks an F plasmid with an appendage called a pilus, through which the plasmid is transferred. Some bacterial DNA fragments may be included when new phage particles are assembled. A cell can be treated to make it competent to take up DNA from its environment. When a...
mechanisms of recombination from donor to recipient cell *kind of dna transfered (chromosome, plasmid, or both)...
mechanisms of recombination from donor to recipient cell
*kind of dna transfered (chromosome, plasmid, or both)
REVIEW Transformation Generalized transduction Conjugation F+ A. Kind of DNA transferred (chram oame, plamid or both) Is donor living or dead? Is direct contact required? yes or no Is a virus required? yes or no Will the process occur if DN Aase is in the medium? yes or no
5.. Name the type of horizontal gene transfer diagrammed below. Transposon Donor cell Recipient cell 6....
5.. Name the type of horizontal gene transfer diagrammed below. Transposon Donor cell Recipient cell 6. Name the type of horizontal gene transfer diagrammed below. Release of DNA Donor cell Antibiotic- resistance gene Recipient cell 7.. Name the type of horizontal gene transfer diagrammed below. Release of phage Phage-infected donor cell Recipient cell 8. The process diagrammed below is (generalized; specialized Trhance nel transduction. Phage genome gal gene hio gene -Ecoli chromosome Integration of viral DNA in the bacterial chromosome...
definitions Genetie transfer and recombination: Genetic recombination: Crossing over: Vertical gene transfer: - Horizontal gene transfer:...
definitions
Genetie transfer and recombination: Genetic recombination: Crossing over: Vertical gene transfer: - Horizontal gene transfer: Donor cell: Recipient cell: Transformation in bacteria: Griffith's experiment: Streptococcus pneumoniae: Smooth strain (encapsulated): Rough strain (nonencapsulated): Competence: Conjugation in bacteria: F factor (fertility factor): Hfr (high frequency of recombination) cell: Transduction in bacteria: Bacteriophage (phage): Generalized transduction: Specialized transduction:
What process requires contact between the donor cell and the recipient cell? A. transformation B. transduction...
What process requires contact between the donor cell and the recipient cell? A. transformation B. transduction C. transcription D. conjugation
1. Which strain of Escherichia coli has been transduced with the gene for the Shiga toxin?...
1. Which strain of Escherichia coli has been transduced with the gene for the Shiga toxin? (A-E) A E പറ B D с 2. Aeromonas hydrophila, the bacterium with this plasmid, was found growing in what organism? 3. The qach and qacEA1 genes provide resistance to what group of disinfectant?? 4. The tetA and tetR genes provide resistance to what type of antibiotics? Aeromones hydrophile plasmid R18 165.906be GC 52.53% 5.. Name the type of horizontal gene transfer diagrammed below....
33. Which of the following requires direct contact between a donor bacterium and a recipient bacterium...
33. Which of the following requires direct contact between a donor bacterium and a recipient bacterium for transfer of DNA? a. Crossing over b. Mutation c. Transduction d. Conjugation e. Transformation 34. All of the following are true of base substitutions except: a A base substitution may cause no change in the protein encoded by the affected gene b. A base substitution can result in the production of a shortened protein c. Mutations rarely involve base substitutions. d. Base substitutions...
What does this illustrate? A) Transformation B) Transduction C) Conjugation D) Recombination This process requires the...
What
does this illustrate?
A) Transformation
B) Transduction
C) Conjugation
D) Recombination
This process requires the element A, which is:
A) Flagella
B) Porin
C) Pilus
D) Type III secretion system
(T/F) This genetic event should accompany DNA
synthesis
(T/F) This genetic event accompanies normal
bidirectional DNA replication
1. 3 pts each 30 pts total) Fill in each blank with the best word or phrase selected from the lis...
1. 3 pts each 30 pts total) Fill in each blank with the best word or phrase selected from the list below. Not all words or phrases will be used; each word or phrase should be used only once charged transduction lytic - strand promoter RBS lysozyme conjugation retrovirus RNA sigma factor clear origin transformation uncharged recombination +strand lysogen pause site cloudy Before transcription can begin, RNA polymerase finds the location and direction of a gene within the DNA based...
1. The type of genetic exchange between bacterial cells that can happen between isolated DNA and...
1. The type of genetic exchange between bacterial cells that can happen between isolated DNA and a live bacterial cell is: a. conjugation b. transduction c. transversion d. transformation 2. An Hfr strain of E. coli with genotype a+b+c+d+e+f+ is mated with an F¯ auxotrophic strain with the genotype a¯b¯c¯d¯e¯f¯. Conjugation is stopped at 10 minute intervals and the genotypes of the resulting conjugants are determined. The following results are obtained: after 10 minutes e+ after 20 minutes a+ e+...
Please classify each statement as describing transformation, conjugation, or transduction in bacteria. Bacteria can acquire plasmids from outside the cell. A bacterium that contains an F plasmid connects to a recipient bacterium that lacks an F plasmid with an appendage called a pilus, through which the plasmid is transferred. Some bacterial DNA fragments may be included when new phage particles are assembled. A cell can be treated to make it competent to take up DNA from its environment. When a...
mechanisms of recombination from donor to recipient cell
*kind of dna transfered (chromosome, plasmid, or both)
REVIEW Transformation Generalized transduction Conjugation F+ A. Kind of DNA transferred (chram oame, plamid or both) Is donor living or dead? Is direct contact required? yes or no Is a virus required? yes or no Will the process occur if DN Aase is in the medium? yes or no
5.. Name the type of horizontal gene transfer diagrammed below. Transposon Donor cell Recipient cell 6. Name the type of horizontal gene transfer diagrammed below. Release of DNA Donor cell Antibiotic- resistance gene Recipient cell 7.. Name the type of horizontal gene transfer diagrammed below. Release of phage Phage-infected donor cell Recipient cell 8. The process diagrammed below is (generalized; specialized Trhance nel transduction. Phage genome gal gene hio gene -Ecoli chromosome Integration of viral DNA in the bacterial chromosome...
definitions
Genetie transfer and recombination: Genetic recombination: Crossing over: Vertical gene transfer: - Horizontal gene transfer: Donor cell: Recipient cell: Transformation in bacteria: Griffith's experiment: Streptococcus pneumoniae: Smooth strain (encapsulated): Rough strain (nonencapsulated): Competence: Conjugation in bacteria: F factor (fertility factor): Hfr (high frequency of recombination) cell: Transduction in bacteria: Bacteriophage (phage): Generalized transduction: Specialized transduction:
1. Which strain of Escherichia coli has been transduced with the gene for the Shiga toxin? (A-E) A E പറ B D с 2. Aeromonas hydrophila, the bacterium with this plasmid, was found growing in what organism? 3. The qach and qacEA1 genes provide resistance to what group of disinfectant?? 4. The tetA and tetR genes provide resistance to what type of antibiotics? Aeromones hydrophile plasmid R18 165.906be GC 52.53% 5.. Name the type of horizontal gene transfer diagrammed below....
33. Which of the following requires direct contact between a donor bacterium and a recipient bacterium for transfer of DNA? a. Crossing over b. Mutation c. Transduction d. Conjugation e. Transformation 34. All of the following are true of base substitutions except: a A base substitution may cause no change in the protein encoded by the affected gene b. A base substitution can result in the production of a shortened protein c. Mutations rarely involve base substitutions. d. Base substitutions...
What
does this illustrate?
A) Transformation
B) Transduction
C) Conjugation
D) Recombination
This process requires the element A, which is:
A) Flagella
B) Porin
C) Pilus
D) Type III secretion system
(T/F) This genetic event should accompany DNA
synthesis
(T/F) This genetic event accompanies normal
bidirectional DNA replication
1. 3 pts each 30 pts total) Fill in each blank with the best word or phrase selected from the list below. Not all words or phrases will be used; each word or phrase should be used only once charged transduction lytic - strand promoter RBS lysozyme conjugation retrovirus RNA sigma factor clear origin transformation uncharged recombination +strand lysogen pause site cloudy Before transcription can begin, RNA polymerase finds the location and direction of a gene within the DNA based...
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