Which of the following is NOT true about bacterial conjugation An F factor drives replication and...
Which of the following is NOT true about bacterial conjugation
-
An F factor drives replication and transfer of a conjugative plasmid
-
The genome of the bacterial chromosome in the donor cells is altered through ectopic recombination
-
Transfer is mediated by a tube-like pilus formed between the adjacent cells
-
Mating cells often break apart before transfer of the entire bacterial chromosome.
-
The transferred DNA can be incorporated in the recipient cell bacterial chromosome via homologous recombination.
Homework Answers
I believe the correct answer to be:
Option B) The genome of the bacterial chromosome in the donor cell is altered through ectopic recombination.
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Which of the following is NOT true about bacterial
conjugation
An F factor drives replication and...
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...
1) Choose from the following options to complete the passage below: F-, F+, F', Hfr. A(n)...
1) Choose from the following options to complete the passage
below: F-, F+, F', Hfr.
A(n) ___?___ cell, which has the F plasmid incorporated into the
bacterial genome, can only conjugate with ___?____
cells. If the plasmid recircularizes, carrying some of the
bacterial DNA with it, the cell is now considered to be
___?____.
2) If conjugation occurs between the two cells below, what will
be the genotype of the exconjugant cell?
a) F+ lac+
b) F+ lac-
c) F-...
13. Which of the following statements about conjugation is false? A) Conjugation is sexual reproduction for...
13. Which of the following statements about conjugation is false? A) Conjugation is sexual reproduction for bacteria B) In conjugation a bacterium carries a fertility plasmid. C) In conjugation a bacterium forms a small hollow tube called a pilus. D) In conjugation a bacterium attaches to a neighboring bacterial cell that lacks a fertility plasmid. E) Conjugation can be a problem because fertility plasmids often carry genes that endow cells with drug resistance or the ability to produce toxins.
Illustrate a conjugation event with an F’ cell that is lacIS lacP+lacO+lacZ- lacY-on the bacterial chromosome...
Illustrate a conjugation event with an F’ cell that is lacIS lacP+lacO+lacZ- lacY-on the bacterial chromosome and lacI- lacP+ lacOC lacZ+ lacY+ on an F plasmid with an F-cell that is lacI+ lacP+ lacO+ lacZ+ lacY-. Draw both cells before the conjugation event, as well as the recipient cell after conjugation occurs. Underneath all three cells, note whether the production of permease and beta-galactosidase would be high, basal, or none, and describe HOW the proteins and DNA sequences interact to...
QUESTION 12 Which of the following statements about genetic exchange in bacteria is NOT true? A....
QUESTION 12 Which of the following statements about genetic exchange in bacteria is NOT true? A. In conjugation there has to be a physical connection between the donor cell and the recipient cell. B. Antibiotic resistance can be transferred from one bacterial cell to another by conjugation. C. Interrupted conjugation results in the production of Hfr strains. D. Plasmids do not have to integrate into the host cell chromosome in order to be replicated. E. The order of gene transfer...
Chromosome Figure 6 Fiqure 7 R plasmid F plasmid integrated into host chromosome Sex pilus chromosome...
Chromosome Figure 6 Fiqure 7 R plasmid F plasmid integrated into host chromosome Sex pilus chromosome of recipient Figure 8 Double- Cel stranded Cytoplasmic ll ONA Integrated DNA Treat with electric current Recipient cell Fragments of donor DNA Transformed cell Phage Figure 9 Figure 10 Phage DNA enters the cell Bacterial host #1 앗 O E. coli F plasmid Gov Integration of F plasmid Bacterial DNA -Bacterial host #2 85 Replaced host DNA Bacterial DNA I Which diagram(s) depict conjugation?...
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+...
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 @...
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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...
1) Choose from the following options to complete the passage
below: F-, F+, F', Hfr.
A(n) ___?___ cell, which has the F plasmid incorporated into the
bacterial genome, can only conjugate with ___?____
cells. If the plasmid recircularizes, carrying some of the
bacterial DNA with it, the cell is now considered to be
___?____.
2) If conjugation occurs between the two cells below, what will
be the genotype of the exconjugant cell?
a) F+ lac+
b) F+ lac-
c) F-...
13. Which of the following statements about conjugation is false? A) Conjugation is sexual reproduction for bacteria B) In conjugation a bacterium carries a fertility plasmid. C) In conjugation a bacterium forms a small hollow tube called a pilus. D) In conjugation a bacterium attaches to a neighboring bacterial cell that lacks a fertility plasmid. E) Conjugation can be a problem because fertility plasmids often carry genes that endow cells with drug resistance or the ability to produce toxins.
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or the following anatomical structures, which is homologous to the bones in the wing of a bird? Albones in the hind Iimb of a kangaroo C) bony rays in the tail fin of a tlving fish B) chitinous struts in the wing of a batterfly D) bones in the fipper of a whale 25 Which of the following evidence most strongly supports the oommon origin of all life on Earth? All organisms A) require energy B) use essentially the same...
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