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Bacteriophages

Bacteriophages
A bacterial defense mechanism against bacteriophage is called

concatamerization
restriction
lysogeny
polymerization

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

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

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Bacteriophages
__________ protein keeps the prophage dormant and prevents virus reproduction.

Repressor
Promotor
Enhancer
Operator

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

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

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

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

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