MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Epicalyx in Clitoria is |
| A. | may be 2 |
| B. | absent |
| C. | more than 4 |
| D. | may be 4 |
| Answer» B. absent | |
| 2. |
The binomial name of a microbe is composed of |
| A. | its genus name and a species modifier |
| B. | its kingdom and genus names |
| C. | its genus and species names |
| D. | its family and class names |
| Answer» B. its kingdom and genus names | |
| 3. |
Anti rabies vaccine is prepared by ? |
| A. | Street virus |
| B. | Fixed virus |
| C. | LIve virus |
| D. | Wild virus |
| Answer» C. LIve virus | |
| 4. |
Which of the following microorganisms is classified as a member of archaebacteria? |
| A. | Methanobacteria |
| B. | Gyanobacteria |
| C. | Mycoplasma |
| D. | Trichomonads |
| Answer» B. Gyanobacteria | |
| 5. |
Atypical pneumonia is caused by all except - |
| A. | Mycoplasma |
| B. | Adeno virus |
| C. | Chlamydia |
| D. | Hemophilus |
| Answer» E. | |
| 6. |
The most common HIV sub-type in India is - |
| A. | D |
| B. | H |
| C. | E |
| D. | C |
| Answer» E. | |
| 7. |
Cause of Meliodosis is ? |
| A. | Burkholderia mallei |
| B. | Burkholderia pseudomallei |
| C. | Burkholderia cepacia |
| D. | None |
| Answer» C. Burkholderia cepacia | |
| 8. |
In a patient,corneal scraping reveals narrow angled septate hyphae.Which of the following is the likely etiologic agent: |
| A. | Aspergillus |
| B. | Mucor |
| C. | Candida |
| D. | Histoplasma |
| Answer» B. Mucor | |
| 9. |
Viral enterotoxin is detected as a possible mechanism of pathogenesis in: |
| A. | Calcivirus |
| B. | Astrovirus |
| C. | Adeno virus |
| D. | Rota virus |
| Answer» D. Rota virus | |
| 10. |
Virulence determinant implicated in pathogenesis of scarlet fever is - |
| A. | Hyaluronidase |
| B. | M protein |
| C. | Pyrogenic exotoxin |
| D. | Streptokinase |
| Answer» D. Streptokinase | |
| 11. |
The transformation of nitrates to gaseous nitrogen is accomplished by microorganisms in a series of biochemical reactions. The process is known as |
| A. | denitrification |
| B. | nitrification |
| C. | ammonification |
| D. | nitrogen fixation |
| Answer» B. nitrification | |
| 12. |
Fresh sea water is referred to as impure because |
| A. | it contains aquatic animals |
| B. | it contains only oxygen |
| C. | it contains dissolved salts |
| D. | it contains aquatic plants |
| Answer» D. it contains aquatic plants | |
| 13. |
Kaposi sarcoma is caused by ? |
| A. | HHV1 |
| B. | HHV2 |
| C. | HPV |
| D. | HHV8 |
| Answer» E. | |
| 14. |
There has been an outbreak of food borne salmonella gastroenteritis in the community and the stool samples have been received in the laboratory.Which is the enrichment medium of choice: |
| A. | Cary Blair medium |
| B. | V R medium |
| C. | Selenite 'F' medium |
| D. | Thioglycholate medium |
| Answer» D. Thioglycholate medium | |
| 15. |
Recent Hepatitis infection is best diagnosed by |
| A. | HBsAg |
| B. | IgG Anti HBe ab |
| C. | Anti HBs Ag ab |
| D. | IgM anti HBc ab |
| Answer» E. | |
| 16. |
The physical properties are individual and not the result of constituting elements in |
| A. | non-metals |
| B. | metals |
| C. | compounds |
| D. | mixtures |
| Answer» D. mixtures | |
| 17. |
Enterovirus causes all,except: |
| A. | Haemorrhagic fever |
| B. | Pleurodynia |
| C. | Herpangia |
| D. | Aseptic Meeningitis |
| Answer» B. Pleurodynia | |
| 18. |
All of the following are true about bacillus anthrax except |
| A. | Capsular polypeptide aids virulence by inhibiting phagocytosis |
| B. | Toxin is a complex of two fractions |
| C. | Plasmid is responsible for toxin production |
| D. | Cutaneous anthrax generally resolve spontaneously |
| Answer» C. Plasmid is responsible for toxin production | |
| 19. |
In a 5 year old boy who has history of pyogenic by bacteria with polysaccharide-rich capsules, which of the following investigation should be done ? |
| A. | IgA deficiency |
| B. | IgG1 deficiency |
| C. | IgG2 deficiency |
| D. | IgA and IgG2 deficiency |
| Answer» D. IgA and IgG2 deficiency | |
| 20. |
The transposase gene encodes an enzyme that facilitate |
| A. | general recombination |
| B. | viral replication within a genome |
| C. | none of the above |
| D. | site-specific integration of transposable elements |
| Answer» E. | |
| 21. |
All of the following are true about Herpes group virus except: |
| A. | HSV II involves below diaphragm |
| B. | Burkitt's lymphoma-involves-T cells |
| C. | Ether sensitive |
| D. | May cause malignancy |
| Answer» C. Ether sensitive | |
| 22. |
Which of the following structures is the smallest? |
| A. | Hydrogen atom |
| B. | Viriod |
| C. | Mitochondrion |
| D. | Bacterium |
| Answer» B. Viriod | |
| 23. |
True about toxoplasmosis is all except |
| A. | In adults toxoplasmosis is usually asymptomatic |
| B. | IgG antibodies are diagnostic in Congenital toxoplasmosis |
| C. | Is a antroponotic disease |
| D. | Encephalitis is uncommon(rare)in immunocompetent individuals |
| Answer» C. Is a antroponotic disease | |
| 24. |
All of the following statements about Pneumocystis Jiroveci are true Except: |
| A. | Usually diagnosed by sputum examination |
| B. | Causes disease only in the immunocompromised host |
| C. | Usually associated with CMV infection |
| D. | May be associated with Pneumatocele |
| Answer» D. May be associated with Pneumatocele | |
| 25. |
Most common organism responsible for gas gangrene is |
| A. | Clostridium tetani |
| B. | Clostridium septicum |
| C. | Clostridium-perfringens |
| D. | Clostridium-difficile |
| Answer» D. Clostridium-difficile | |
| 26. |
Pigs are reservoir for: |
| A. | Trichinella spiralis |
| B. | Ancyclostoma |
| C. | T.Solium |
| D. | T.Saginata |
| Answer» D. T.Saginata | |
| 27. |
Cornybacterium diptheria is also called as ? |
| A. | Freelander's bacillus |
| B. | Kleb's loeffler's bacillus |
| C. | Fischer's bacillus |
| D. | Koch's bacillus |
| Answer» C. Fischer's bacillus | |
| 28. |
All of the following forces are involved in Antigen antibody reaction except: |
| A. | Hydrogen bond |
| B. | Covalent bond |
| C. | Vander Waal's forces |
| D. | Electrostatic bond |
| Answer» C. Vander Waal's forces | |
| 29. |
An elderly male patient presented with fever,chest pain and dry cough,Sputum culture showed growth on Charcol Yeast Extraxct Medium.The organism is |
| A. | H.influenza |
| B. | Moraxella cartarrhalis |
| C. | Legionella |
| D. | Burkholderia cepacia |
| Answer» D. Burkholderia cepacia | |
| 30. |
Dengue fever is transmitted by |
| A. | Tiger mosquito |
| B. | Jackal mosquito |
| C. | Wolf mosquito |
| D. | Lion mosquito |
| Answer» B. Jackal mosquito | |
| 31. |
HIV can be detected and confirmed by: |
| A. | Reverse Transcriptase-PCR. |
| B. | Polymerase Chain Reaction (PCR). |
| C. | Mimic PCR. |
| D. | Real Time PCR. |
| Answer» B. Polymerase Chain Reaction (PCR). | |
| 32. |
With reference to Bacteroides fragilis the following statement are true, except - |
| A. | The lipopolysaccharide formaed by B. fragilis is structurally and functionally different from the conventional endotoxin |
| B. | Shock and disseminated intravascular coagulation are comnmon in Bacteriodes bacteremia |
| C. | B. fragilis is the same frequent anaerobe isolated from clinical samples |
| D. | B. fragilis is not uniformaly sensitive to metronidazole |
| Answer» C. B. fragilis is the same frequent anaerobe isolated from clinical samples | |
| 33. |
Digestive reactions where large molecules are broken down into smaller ones are referred as |
| A. | catabolism |
| B. | anabolism |
| C. | biosynthesis |
| D. | metabolism |
| Answer» B. anabolism | |
| 34. |
Which one of the following bacteria contains mycolic acid in the cell wall ? |
| A. | Escherichia |
| B. | Mycoplasma |
| C. | Mycobacteria |
| D. | Staphylococcus |
| Answer» D. Staphylococcus | |
| 35. |
Which of the following statements about C.diphtheria is false: |
| A. | Toxin acts by inhibiting protein synthesis |
| B. | Toxin may effect the heart and nerves |
| C. | Toxin production is mediated by native chromosome |
| D. | Organism may be identified by tests for toxigenicity |
| Answer» D. Organism may be identified by tests for toxigenicity | |
| 36. |
Autoinfection is seen with |
| A. | Strongyloides |
| B. | Ascaris lumbricoides |
| C. | Gnathostoma |
| D. | Giardia |
| Answer» B. Ascaris lumbricoides | |
| 37. |
The following diagnostic tests are useful for corresponding purposes except: |
| A. | Immunoflorescence-Detection of Influenza virus |
| B. | Zeilh-Nelson staining-Detection of mycobacteria |
| C. | Specific IgM antibodies-Detection of acute infection |
| D. | Specific IgM antibodies-Immunity gainst Rubella |
| Answer» E. | |
| 38. |
Reverse transcriptase polymerase chain reaction can aid in diagnosis of all of the following viral infections except: |
| A. | Rotavirus |
| B. | Poliovirus |
| C. | Adenovirus |
| D. | Astrovirus |
| Answer» D. Astrovirus | |
| 39. |
DAHP synthetase catalyzes the condensation of |
| A. | phosphoenol pyruvate |
| B. | erythrose-4-phosphate |
| C. | phenylalanine |
| D. | both ( and ( |
| Answer» E. | |
| 40. |
Cryptococcus-neoformans is a: |
| A. | Fungus |
| B. | Protozoa |
| C. | Mycoplasma |
| D. | Parasite |
| Answer» B. Protozoa | |
| 41. |
A single immunoglobulin molecule contains |
| A. | 1 light chain,1 heavy chain |
| B. | 2 heavy chain,1 light |
| C. | 2 light chains,2 heavy chains |
| D. | 2 light chains,1 heavy chain |
| Answer» D. 2 light chains,1 heavy chain | |
| 42. |
Chlamydia trachomatis is associated with the following except: |
| A. | Lymphogranuloma venereum. |
| B. | Community acquired pneumonia. |
| C. | Endemic trachoma. |
| D. | Inclusion conjunctivitis. |
| Answer» C. Endemic trachoma. | |
| 43. |
Which of the following toxins acts by inhibiting protein synthesis |
| A. | Shiga toxin |
| B. | Cholera toxin |
| C. | LT of enterotoxigenic E.coli |
| D. | Pertusis toxin |
| Answer» B. Cholera toxin | |
| 44. |
Causative agent of Q fever: |
| A. | Ro.quintana |
| B. | R.prowazekii |
| C. | R.typhi |
| D. | Coxiella burnetii |
| Answer» E. | |
| 45. |
Which one of the following fungus does NOT infect hair ? |
| A. | Epidermophyton |
| B. | Microsporum |
| C. | Trichophyton |
| D. | Trichosporon |
| Answer» B. Microsporum | |
| 46. |
All of the following are features of prokaryotes except |
| A. | photosynthesis |
| B. | nitrogen fixation |
| C. | locomotion |
| D. | sexual reproduction |
| Answer» E. | |
| 47. |
Metachromatic granules are seen in ? |
| A. | Cornybacterium |
| B. | E.coli |
| C. | Yersinia |
| D. | Pseudomonas |
| Answer» B. E.coli | |
| 48. |
Phosphate regulation has been observed in the production of |
| A. | antibiotics |
| B. | alkaloids |
| C. | all of these |
| D. | gibberelins |
| Answer» D. gibberelins | |
| 49. |
Adenosine deaminase deficiency is seen in the following: |
| A. | Severe combined immunodeficiency |
| B. | Common variable immunodeficiency |
| C. | Nezelof syndrome |
| D. | Chronic granulomatous disease |
| Answer» B. Common variable immunodeficiency | |
| 50. |
Regarding HIV infection,not true is: |
| A. | Lysis of infected CD4 cells is seen |
| B. | p24 is used for early diagnosis |
| C. | Macrophage is a reservoir for the virus |
| D. | Dendritic cells do not support replication |
| Answer» E. | |