How can hospital personnel prevent the spread of resistant Enterococcus faecium throughout the hospital?
A) Hospital staff should wear shoe covers for the duration of their shift.
B) Hospital staff should never serve raw fruit and salads to patients.
C) Hospital personnel should wash their hands when entering and leaving a patient’s room.
D) Hospital staff should wear masks when entering a patient’s room.
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What term is used to describe bacterial cells that can naturally take up DNA from their environment?
A) Auxotrophs
B) Hfr cells
C) Electroporated cells
D) Competent cells
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At which point does a recipient cell become an F+ cell?
A) Fusion of the cell membranes
B) Attachment of the sex pilus
C) Transfer of the single-stranded F factor
D) Pulling of donor and recipient cells together
E) Formation of the complementary strand of the F factor
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What is the key difference between donor cells and recipient cells?
A) Cell membranes
B) Size
C) A chromosome
D) An F plasmid
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What is required by an F- cell to become an F+ cell?
A) An F- cell to be a recipient
B) F plasmid
C) Conjugation pilus
D) F+ chromosome
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Ribosomes contain which of the following?
A) tRNA
B) rRNA
C) mRNA, tRNA, and rRNA are all found as part of the ribosome.
D) mRNA
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What cellular macromolecule is the fertility factor comprised of?
A) Nucleic acid
B) Lipid
C) Carbohydrate
D) Protein
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Which statement about DNA replication is CORRECT?
A) DNA ligase helps assemble the leading strand.
B) The lagging strand is one of the strands of parental DNA.
C) The leading strand is put continuously, and the lagging strand is built in pieces.
D) The leading strand is one of the strands of parental DNA.
E) The lagging strand is built continuously.
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A recombinant cell…
A) is the result of a cell dividing.
B) is a cell that receives DNA from an outside source and incorporates it into its own.
C) donates DNA into a new cell.
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Based on the animation, what is transferred during bacterial conjugation?
A) RNA
B) A conjugation pilus
C) A bacterial chromosome
D) A bacterial plasmid
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