Microbiology MCQ Questions — Page 717

Question 1

Transplantation involving tissue from twin brothers possessing identical HLA genes is best described by which one of the following?

Answer

Allograft: transplant from one species to the same species

Answer

Autograft: transplant from one region of a person to another region

Answer

Isograft: transplant from one person to a genetically identical person

Answer

Xenograft: transplant from one species to another species

Question 2

Following is true about C reactive protein -a) Detected by precipitation with carbohydrateb) Raised in acute pneumococcal infectionc) It is an antibodyd) Detected by agglutination test.

Ac

Bd

Cab

Dbd

Question 3

The peptide binding site on Class I MHC molecules is located in:

Answer

Proximal domain of a subunits

Answer

Distal domain of a subunit

Answer

Proximal domains of a and p subunit

Answer

Distal domains of a and p subunit

Question 4

Structure of antibodies is composed of –

Answer

Single peptide chain

Answer

Two peptide chain

Answer

Non sulphur amino acid

Answer

2 long and 2 sho peptide chains

Question 5

True about clostridium tetani -a) It is gram +veb) Drum stick appearancec) Grows in aerobic environmentd) It is gram -ve

Aac

Bab

Cad

Dbc

Question 6

Malaise and fatigue with increased “atypical” lymphocytes and a reactive heterophil antibody test is most commonly caused by

Answer

Toxoplasma

Answer

Borrelia burgdorferi

Answer

Epstein-Barr virus

Answer

Parvovirus

Question 7

Culture media used for corynebacterium diphtheria is:

A14 media

DMcConkey

Answer

Potassium tellurite media

Answer

Loeffler's serum slope

Question 8

Following statement is false regarding Colistin:

Answer

It belongs to a group of antimicrobial agents known as polymyxins which were originally isolated from the spore forming soil organism Paenibacillus polymyxa

Answer

Colistin is a mixture of polymyxin E1 and E2, two bactericidal pentacationic lipopeptide

Answer

All gram positive bacteria are susceptible to Colistin

Answer

Colistin is generally used to treatment infections with multidrug-resistant, extensively drug-resistant and pan drug-resistant bacteria

Question 9

Proteus antigen cross react with ?

DE.coli

Answer

Klebsiella

Answer

Rickettsiae Klebsiella

Answer

Chlymydiae