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Bacteriophages

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

scaffolding
form
ladder
framing

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Bacteriophages
The filamentous bacteriopohage infect male E. coli cells by attaching to

lipopolysaccharide
the tip of the pilus
the cell membrane
the cell wall

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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
The process by which phage reproduction is initiated in lysogenized culture is called

infection
repression
induction
integration

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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
Which capsid symmetry is exhibited by most of the phages?

Complex
None of these
Icosahedral
Helical

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