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Bacteriophages

Bacteriophages
Which capsid symmetry is exhibited by most of the phages?

None of these
Complex
Icosahedral
Helical

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

RNA ligase
RNA transcriptase
RNA polymerase
RNA replicase

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

Adsorbed virus
RNA phage
Temperate virus
DNA phage

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Bacteriophages
The procapsid is assembled with the aid of __________ proteins.

scaffolding
framing
form
ladder

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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
Toxin production in Corynebacterium diphtheriae
All of these
Antigenic variation in Salmonella anatum

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

all of these
pock
pox
plaque

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