Why do different conjugating strains show different gradients of transfer? Group of answer choices A. Hfr...
Why do different conjugating strains show different gradients of transfer? Group of answer choices
A. Hfr plasmids pick up different bacterial genes when they excise from the chromosome.
B. There is variation in the rate that each F+ strain transfers DNA.
C. The Hfr plasmid can integrate into different locations in the bacterial genome creating different F+ strains that initiate transfer at different locations.
D. The F+ plasmid can integrate into different locations in the bacterial genome creating different Hfr strains that initiate transfer at different locations.
Homework Answers
D. The F+ plasmid can integrate into different locations in the bacterial genome creating different Hfr strains that initiate transfer at different locations.
Hfr strains are created when the F+ plasmid integrates into a bacterial genome. Since this location is random, the locus at which transfer begins varies depending on where the F+ plasmid has integrated. Therefore, different Hfr strains have different transfer gradients.
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Why do different conjugating strains show different gradients of
transfer? Group of answer choices
A. Hfr...
What statement about conjugation is true? Group of answer choices A. Hfr strains are more useful...
What statement about conjugation is true? Group of answer choices A. Hfr strains are more useful for genetic mapping than F+ strains because Hfr strains can conjugate with any strain, while F+ strains can only conjugate with F- strains. B. Hfr strains are more useful for genetic mapping than F+ strains because they recombine transferred genetic material in the recipient cell at a higher rate. C. Hfr strains are more useful for genetic mapping than F+ strains because Hfr strains...
Group activity 12 (chapter 12) Group #: Names: 1. A phage that is part of a...
Group activity 12 (chapter 12) Group #: Names: 1. A phage that is part of a bacterial chromosome is said to show: B) immunity C) conjugation. D) lysogeny E) virulence. 2. Different Hfr strains that originate from the same F-positive strain provide different transfer maps of bacterial genes because: A) the F plasmid inserts at random into the bacterial chromosome. B) the F plasmid replaces some chromosomal segments when it integrates C) insertion of the plasmid causes rearrangements of the...
Suppose a researcher conducts matings between three Hfr bacterial strains and an F strain. The table...
Suppose a researcher conducts matings between three Hfr bacterial strains and an F strain. The table shows the order in which genes are incorporated for each strain. Determine the gene order of the chromosome by placing each gene on the outside of the circular chromosome map. Identify the origin of replication for each Hfr strain on the inside of the map to indicate polarity of the origin. Hfr strain Order of gene transfer ikvqw izrbm vkimb 3 Answer Bank Answer...
Three Hfr strains from the same bacterial species are analyzed for their ability to transfer genes...
Three Hfr strains from the same bacterial species are analyzed for their ability to transfer genes to F recipient bacteria. The data shown below list the origin of transfer (oriT) for each strain and give the order of genes, with the first gene on the left and the last gene on the right. Hfr Strain Genes Transferred Hfr 1 Hfr 2 oriT met pro leu gal oriT ala lac thr azi oriT azi trp met pro Hfr 3 Use the...
This is a Hfr mapping question and I'm completely lost here Basically the bonus is a...
This is a Hfr mapping question and I'm completely lost
here
Basically the bonus is a puzzle. It is based on mapping done with 4 different Hfr strains. I've given you the minutes that that it takes for several of the markers on the map to transfer in as determined by Hfr mapping. All you have to do is put them in the correct order around the circular chromosome and show me how many minutes are in between each marker...
answer 7) The substrate of an eye a) Allosterves to the b) Reactant c) Coenzyme d)...
answer
7) The substrate of an eye a) Allosterves to the b) Reactant c) Coenzyme d) Active site 8) Which of the following is FALSE regarding Gestrandorten a) When living "S" strain (encapsulated strain was (b) The "R" strain and "S" strain exchanged genes via segi c) After DNA from the heat killed "S"strain was mad with strain became pathogenic. d) When heat-killed "S" strain was injected into mice, the mic 9) Bacteria that live in deep sea hydrothermal vents...
Hi, I like to make sure I am staying on track with the thought process and...
Hi, I like to make sure I am staying on track with the thought
process and was curious if anyone can help with A-D. Thank you so
much for the help!
7. (12 pts) You have two Hfr strains of E. coli that carry the F plasmid integrated at different places in the chromosome. During conjugation, strain HfrA transfers the leucine biosynthetic operon only after the rest of the E. coli chromosome has been transferred. During conjugation, strain HfrB transfers...
QUESTION 34 In Hfr strains, the F plasmid is attached to a phage attached to the...
QUESTION 34 In Hfr strains, the F plasmid is attached to a phage attached to the cell wall free in the cytoplasm integrated into the chromosome QUESTION 35 Which of the following is NOT a molecule found during DNA replication? mRNA DNA polymerase 1 helicase ORNA primer Click Save and Submit to save and submit. Click Save All Answers to save all answers. ch.16 PT AP n...ot a ch. 18 PPT AP noppbe ch 17 PPT AP n. e @...
Answer Choices: A) Only one of the strains has a mutation in an eye color gene....
Answer Choices:
A) Only one of the strains has a mutation in an eye color
gene.
b) Strains C and D have mutations in different genes.
C) Strains C and D have mutations in the same gene.
D) More information is needed to infer the location of
mutations.
! Required information Fruit flies normally have red eyes. Seven different true-breeding strains of fly with white eyes have been identified (A–G). In each strain, the white eye trait is due to...
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+...
Group activity 12 (chapter 12) Group #: Names: 1. A phage that is part of a bacterial chromosome is said to show: B) immunity C) conjugation. D) lysogeny E) virulence. 2. Different Hfr strains that originate from the same F-positive strain provide different transfer maps of bacterial genes because: A) the F plasmid inserts at random into the bacterial chromosome. B) the F plasmid replaces some chromosomal segments when it integrates C) insertion of the plasmid causes rearrangements of the...
Suppose a researcher conducts matings between three Hfr bacterial strains and an F strain. The table shows the order in which genes are incorporated for each strain. Determine the gene order of the chromosome by placing each gene on the outside of the circular chromosome map. Identify the origin of replication for each Hfr strain on the inside of the map to indicate polarity of the origin. Hfr strain Order of gene transfer ikvqw izrbm vkimb 3 Answer Bank Answer...
Three Hfr strains from the same bacterial species are analyzed for their ability to transfer genes to F recipient bacteria. The data shown below list the origin of transfer (oriT) for each strain and give the order of genes, with the first gene on the left and the last gene on the right. Hfr Strain Genes Transferred Hfr 1 Hfr 2 oriT met pro leu gal oriT ala lac thr azi oriT azi trp met pro Hfr 3 Use the...
This is a Hfr mapping question and I'm completely lost
here
Basically the bonus is a puzzle. It is based on mapping done with 4 different Hfr strains. I've given you the minutes that that it takes for several of the markers on the map to transfer in as determined by Hfr mapping. All you have to do is put them in the correct order around the circular chromosome and show me how many minutes are in between each marker...
answer
7) The substrate of an eye a) Allosterves to the b) Reactant c) Coenzyme d) Active site 8) Which of the following is FALSE regarding Gestrandorten a) When living "S" strain (encapsulated strain was (b) The "R" strain and "S" strain exchanged genes via segi c) After DNA from the heat killed "S"strain was mad with strain became pathogenic. d) When heat-killed "S" strain was injected into mice, the mic 9) Bacteria that live in deep sea hydrothermal vents...
Hi, I like to make sure I am staying on track with the thought
process and was curious if anyone can help with A-D. Thank you so
much for the help!
7. (12 pts) You have two Hfr strains of E. coli that carry the F plasmid integrated at different places in the chromosome. During conjugation, strain HfrA transfers the leucine biosynthetic operon only after the rest of the E. coli chromosome has been transferred. During conjugation, strain HfrB transfers...
QUESTION 34 In Hfr strains, the F plasmid is attached to a phage attached to the cell wall free in the cytoplasm integrated into the chromosome QUESTION 35 Which of the following is NOT a molecule found during DNA replication? mRNA DNA polymerase 1 helicase ORNA primer Click Save and Submit to save and submit. Click Save All Answers to save all answers. ch.16 PT AP n...ot a ch. 18 PPT AP noppbe ch 17 PPT AP n. e @...
Answer Choices:
A) Only one of the strains has a mutation in an eye color
gene.
b) Strains C and D have mutations in different genes.
C) Strains C and D have mutations in the same gene.
D) More information is needed to infer the location of
mutations.
! Required information Fruit flies normally have red eyes. Seven different true-breeding strains of fly with white eyes have been identified (A–G). In each strain, the white eye trait is due to...
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