BACTERIOPHAGES QUIZ

T-even phage binding to E. coli probably involves

covalent bonds

electrostatic interaction

all of these

hydrophobic interaction

TRUE ANSWER : ?
YOUR ANSWER : ?

The procapsid is assembled with the aid of __________ proteins.

form

scaffolding

ladder

framing

TRUE ANSWER : ?
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The filamentous bacteriopohage infect male E. coli cells by attaching to

lipopolysaccharide

the tip of the pilus

the cell wall

the cell membrane

TRUE ANSWER : ?
YOUR ANSWER : ?

In viruses with envelopes

the envelope and its imbedded proteins are derived from the host's membranes

the envelope and the embedded proteins are encoded by the viral nucleic acid

the envelope is coded by the viral nucleic acids, but the proteins come from the host's membrane proteins

the envelope is derived from the host but it contains embedded proteins coded by the viral nucleic acid

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

Adsorbed virus

RNA phage

Temperate virus

DNA phage

TRUE ANSWER : ?
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Area of lysis on a bacterial lawn culture produced by a phage is known as

all of these

pox

pock

plaque

TRUE ANSWER : ?
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Which capsid symmetry is exhibited by most of the phages?

Complex

None of these

Helical

Icosahedral

TRUE ANSWER : ?
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The process by which phage reproduction is initiated in lysogenized culture is called

integration

infection

induction

repression

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

RNA ligase

RNA transcriptase

RNA replicase

RNA polymerase

TRUE ANSWER : ?
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__________ protein keeps the prophage dormant and prevents virus reproduction.

Promotor

Enhancer

Repressor

Operator

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