How does a phage transfer DNA from one bacterium to another?
A) Phages form a bridge between bacterial cells that allows DNA to pass from the host cell to the recipient cell.
B) Phages form a bridge between bacterial cells that allows DNA to pass in both directions between the two cells.
C) Phages lyse bacterial cells, releasing bacterial DNA into the environment, which is taken up by other phages for transfer to new cells.
D) When phages assemble in an infected bacterial cell, they may incorporate host DNA; released phages may attach to other cells and inject the bacterial DNA into those cells.
E) Phages attach to receptors on bacterial cells and receive some of the target cells' DNA; the phages release this DNA into the environment to be taken up by other bacterial cells.
Correct Answer:
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Q36: Q37: Q38: R plasmids provide _. Q39: What is the outcome of F+X F-conjugation? Q40: Bacterial cells that cannot readily pick up Q42: The two basic structural forms taken by Q43: Medium that contains a full complement of Q44: Which statement correctly describes horizontal gene transfer? Q45: The movement of genetic material between organisms Q46: In transduction, bacterial cells _.![]()
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A) antibiotic resistance
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A) take up
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