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Bacteriophages

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

induction
repression
infection
integration

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

electrostatic interaction
covalent bonds
all of these
hydrophobic interaction

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

RNA polymerase
RNA replicase
RNA ligase
RNA transcriptase

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

Helical
Complex
Icosahedral
None of these

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

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

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Bacteriophages
Which of the following is/are synthesized from late mRNA?

Proteins involved in cell lysis and phage release
Phage structural proteins
Proteins that help with phage assembly without becoming part of the virion structure
All of these

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