BACTERIOPHAGES QUIZ

A bacterial defense mechanism against bacteriophage is called

lysogeny

concatamerization

restriction

polymerization

TRUE ANSWER : ?
YOUR ANSWER : ?

The procapsid is assembled with the aid of __________ proteins.

form

ladder

scaffolding

framing

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Phage structural proteins

Proteins involved in cell lysis and phage release

All of these

Proteins that help with phage assembly without becoming part of the virion structure

TRUE ANSWER : ?
YOUR ANSWER : ?

Which capsid symmetry is exhibited by most of the phages?

Complex

None of these

Icosahedral

Helical

TRUE ANSWER : ?
YOUR ANSWER : ?

T-even phage binding to E. coli probably involves

electrostatic interaction

covalent bonds

hydrophobic interaction

all of these

TRUE ANSWER : ?
YOUR ANSWER : ?

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

the tip of the pilus

lipopolysaccharide

the cell membrane

the cell wall

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Toxin production in Corynebacterium diphtheriae

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

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

RNA polymerase

RNA ligase

RNA replicase

RNA transcriptase

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Adsorbed virus

RNA phage

DNA phage

Temperate virus

TRUE ANSWER : ?
YOUR ANSWER : ?

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

plaque

pox

pock

all of these

TRUE ANSWER : ?
YOUR ANSWER : ?

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