Microbiology MCQ Questions — Page 390

Question 1

A boy with skin ulcer on leg, culture revealed beta hemolysis. School physician said that similar hemolysis was seen in organism from sorethroat, what is the similarity between both?

Answer

A protein is same for both

Answer

C carbohydrate antigen is different

Answer

C carbohydrate antigen is the same

Answer

Strain causing both are same

Question 2

Answer

First generation Quanti-FERON –TB assay used ESAT-6

Answer

Second Generation Quanti FERON-TB{GOLD} assay used ESAT-6 and CPF-10

Answer

These test can distinguish between M.tuberculosis and M.bovis

Answer

None of the non tuberculosis mycobacteria give a positive reaction with the test.

Question 3

Answer

Subclinical in most cases among adults

Answer

Intracerebral calcification in children

Answer

IgM antibody in new born suggests congenital infection

Answer

NOT infective in 3" trimester in pregnancy

Question 4

DCetrimide

Answer

Hypochlorite

Answer

Hypochlorous acid

Answer

Hexachlorophane

Question 5

Answer

They are inhibited by penicillins

Answer

They can reproduce in cell free media

Answer

They have an affinity for mammlian cell membranes

Answer

They can pass through fiters of 450 nm pore size

Question 6

Answer

Eosin stain

Answer

Hematoxylin stain

Answer

Ninhydrin stain

Answer

Blue stain

Question 7

BMotility

Answer

Satellitism

Answer

Pleomorphism

Answer

All of the above

Question 8

DNone

Answer

O-antigen titre remains positive for several months & reaction to it is rapid

Answer

H-antigen titre remains positive for several months & reaction to it is rapid

Answer

Both remain positive for several months & reaction to both is rapid

Question 9

Answer

Guameri bodies

Answer

Negri bodies

Answer

Cowdry A body

Answer

Bollinger bodies