题目内容

Malta fever of brucellosis is because of ()

A. endotoxin release
B. bacteria invade into bloodstream
C. repeatedly bacteremia
D. the result of delayed type hypersensitivity
E. none of the above

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The protein coat structure of the virus is called a: ()

A. coat
B. envelop
C. receptor
D. capsid
E. none of the above

The most common shape of virus is()

A. rod
B. filament
C. tadpole-like
D. spherical
E. none of the above

Viruses that reproduce by budding ()

A. demonstrate single step growth kinetics
B. demonstrate continuous growth kinetics
C. do not have an eclipse period
D. have high burst sizes
E. none of the above

The replication of retroviruses proceeds by ()

A. synthesis of a DNA strand from the RNA template utilizing viral DNA polymerase
B. synthesis of a DNA strand from the RNA template utilizing host DNA polymerase
C. synthesis of a DNA strand from the RNA template utilizing viral RNA polymerase
D. synthesis of a DNA strand from the RNA template utilizing host RNA polymerase
E. none of the above

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