Microbiology MCQs

Page No. 2

For uniform staining reaction, morphology and biochemical activity it is advisable to study bacterial cultures during the_____________?


aLag phase


bDeath phase


cStationary phase


dLogarithmic phase


View Answer Logarithmic phase

One of the following is a treponemal test for diagnosis of syphilis_____________?


a FTAB


bWidal test


cWasserman test


dKahn test


View Answer FTAB

The genetic ability of a bacterium to grow in the presence of several antibiotics is passed in vivo from one bacterium to another by_____________?


aConjugation


bRarefaction


cTransduction


dTransformation


View Answer Conjugation

The virulence factors of Neisseria gonorrhea include all of the following except____________?


aOuter membrane proteins


b IgA Protease


cM-Proteins


dPili


View Answer M-Proteins

In a patient with typhoid, diagnosis after 15 days of onset of fever is best done by_____________?


aBlood culture


b Widal test


cStool culture


dUrine culture


View Answer Widal test

Staphylococci typically occur in_________________?


aPairs


bChains


cTetrads


dIrregular clusters


View Answer Irregular clusters

One of the following is an agglutination test in the diagnosis of typhoid___________?


a Widal test


bEleks test


cMantoux test


dWasserman test


View Answer Widal test

Which regards to temperature requirement, most pathogenic bacteria are_____________?


aPsychrophiles


bMesophiles


c Cryophiles


dThermophiles


View Answer Mesophiles

A protoplast is best characterized as a bacterial cell______________?


awith a cell wall but free of a capsule


bcontaining a cell wall and a capsule


cFree of a cell wall and a capsule


dUniquely sensitive to penicillin



Causative agents of Vincent’s angina_____________?


aBorrelia vincenti and fusobacterium fusiformis


bBorrelia recurrents and bateroides


cBorrelia burgoloferi and lactobacillus


dLeptospira and Treponema pallidum



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