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Bacteriophages

Bacteriophages
Area of lysis on a bacterial lawn culture produced by a phage is known as

all of these
pox
plaque
pock

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Bacteriophages
__________ is specifically able to have a long-term relationship with the host known as lysogeny.

Adsorbed virus
RNA phage
DNA phage
Temperate virus

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Bacteriophages
Which of the following properties is due to lysogenic conversion by phages?

Toxin production in Clostridium botulinum types C and D
Antigenic variation in Salmonella anatum
All of these
Toxin production in Corynebacterium diphtheriae

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Bacteriophages
One of the first enzymes synthesized by many bacteriophage is __________ , an RNA-dependent RNA polymerase.

RNA ligase
RNA polymerase
RNA replicase
RNA transcriptase

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Bacteriophages
T-even phage binding to E. coli probably involves

electrostatic interaction
hydrophobic interaction
covalent bonds
all of these

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Bacteriophages
A bacterial defense mechanism against bacteriophage is called

lysogeny
restriction
polymerization
concatamerization

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