Microbiology MCQs

Page No. 49

Presence of HBe Ag in patients with hepatitis indicates_____________?


aSimple carriers

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bLate convalescence

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c High infectivity

✓


dCarrier status

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View Answer High infectivity

Portal of entry of poliovirus in mainly_______________?


aGastrointestinal tract

✓


bNasal mucosa

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c Lung

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dSkin

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The HIV virus can be destroyed invitro by which of the following_____________?


aBoiling

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bEthanol

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cCidex

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d All of the above

✓


View Answer All of the above

Certain viruses have been isolated in crytalline form and have been found to be_____________?


aNucleotides

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bPhospholipids

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c Scleroproteins

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dNucleoproteins

✓


View Answer . Nucleoproteins

The presence of Which of the following factors in viruses makes protective vaccines a possibility ?


aEnzymes

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bProtein coat

✓


cPolysaccharide

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dLipids

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View Answer Protein coat

Herpes virus_____________?


a Acquires its envelope from nuclear membrane

✓


bAcquires its envelope from nucleolar membrane

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cAcquires its envelope from cytoplasmi membrane

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dNone of the above

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Pigs are important source of_____________?


a Japanese encephalitis

✓


bKuru

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cYellow fever

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dRabies

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View Answer Japanese encephalitis

True about prions________________?


aComposed largely proteins without any nucleic acid

✓


b Phase in which virus cannot be demonstrated in host cell

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c Viruses which are genetically deficient

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dViral components may be synthesized but maturation & assembling is defective

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Incubation pariod of herpes zoster is________________?


a 7-14 days

✓


b 1 months

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c 1-2 years

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d 3-6 months

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View Answer 7-14 days

In which of the following immunization is given after infection is started________________?


aRabies

✓


bPoliomyelitis

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cInfluenza

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dHerpes

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View Answer Rabies

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