Mcq Subject: Microbiology

Question 1

ELISA for virulence marker antigen (VMA) is done to detect virulence in –

A. A typical mycobacteria

B. Hemophilus influenzae

C. Streptococcus pyogenes

D. Enteroinvasive Escherichia coli

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Answer

A. A typical mycobacteria

B. Hemophilus influenzae

C. Streptococcus pyogenes

D. Enteroinvasive Escherichia coli

Question 2

All are true about culture media except

A. Mac-Conkey agar prevents growth of g- "ve"bacteria

B. Thayer- martin - gonococcus

C. LJ media - mycobacteria

D. Selenite F broth - salmonella

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Answer

A. Mac-Conkey agar prevents growth of g- "ve"bacteria

B. Thayer- martin - gonococcus

C. LJ media - mycobacteria

D. Selenite F broth - salmonella

Question 3

The sputum specimen of a 70 year old male was cultured on a 5% blood agar. The culture showed the presence of a-hemolytic colonies next day. The fuher processing of this organism is most likely to yield:-

A. Gram-positive cocci in sho chains, catalase negative and bile resistant

B. Gram-positive cocci in pairs, catalase negative and bile soluble

C. Gram-positive cocci in clusters, catalase positive and coagulase positive

D. Gram-negative coccobacilli, catalase positive and oxidase positive

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Answer

A. Gram-positive cocci in sho chains, catalase negative and bile resistant

B. Gram-positive cocci in pairs, catalase negative and bile soluble

C. Gram-positive cocci in clusters, catalase positive and coagulase positive

D. Gram-negative coccobacilli, catalase positive and oxidase positive

Question 4

Killer cells & helper cells are pa of –

A. B cells

B. T cells

C. Monocytes

D. Macrophages

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Answer

A. B cells

B. T cells

C. Monocytes

D. Macrophages

Question 5

Drumstick appearence is seen in –

A. Cl. tetani

B. Cl. Tetanomorphum

C. Cl. Sphenoids

D. All

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Answer

A. Cl. tetani

B. Cl. Tetanomorphum

C. Cl. Sphenoids

Question 6

Diene’s method is used for :

A. Mycoplasma

B. Chlamydiae

C. Plague

D. Diptheria

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Answer

A. Mycoplasma

B. Chlamydiae

D. Diptheria

Question 7

Most common cause of gas gangrene ?

A. Cl welchii

B. Cl septicum

C. Cl novyi

D. Cl histolyticum

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Answer

A. Cl welchii

B. Cl septicum

C. Cl novyi

D. Cl histolyticum

Question 8

An infant, seen in the Emergency room, presents with the fever and persistent cough. Physical examination and a chest X-ray suggest pneumonia. Which of the following is most likely the cause of this infection?

A. Rotavirus

B. Adenovirus

C. Coxsackievirus

D. Respiratory syncytial virus

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Answer

A. Rotavirus

B. Adenovirus

C. Coxsackievirus

D. Respiratory syncytial virus

Question 9

Leptospirosis is transmitted by –

A. Rat

B. Cat

C. Dog

D. Fish

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Answer

A. DNA virus

B. Crosses placenta in only < 10% of cases

C. Can cause severe anemia

D. Can cause aplastic crisis

Question 10

All of the following statements about parvovirus B – 9 are true except:

A. DNA virus

B. Crosses placenta in only < 10% of cases

C. Can cause severe anemia

D. Can cause aplastic crisis

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Mcq Subject: Microbiology

ELISA for virulence marker antigen (VMA) is done to detect virulence in –

All are true about culture media except

The sputum specimen of a 70 year old male was cultured on a 5% blood agar. The culture showed the presence of a-hemolytic colonies next day. The fuher processing of this organism is most likely to yield:-

Killer cells & helper cells are pa of –

Drumstick appearence is seen in –

Diene’s method is used for :

Most common cause of gas gangrene ?

An infant, seen in the Emergency room, presents with the fever and persistent cough. Physical examination and a chest X-ray suggest pneumonia. Which of the following is most likely the cause of this infection?

Leptospirosis is transmitted by –

All of the following statements about parvovirus B – 9 are true except:

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