MCQOPTIONS
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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. |
True about polio - |
| A. | Spastic paralysis |
| B. | Paralytic polio is most common |
| C. | Polio drop given only <3 year |
| D. | Increased muscular activity leads to increased paralysis |
| Answer» E. | |
| 2. |
Non pathogenic mycobacterium is ? |
| A. | M.smegmatis |
| B. | M.Balnei |
| C. | M.Ulcerans |
| D. | M.Xenopii |
| Answer» B. M.Balnei | |
| 3. |
Which of the following is not employed as an oxidation method? |
| A. | Trickling filters |
| B. | Oxidation ponds |
| C. | All of these |
| D. | Contact aerators |
| Answer» D. Contact aerators | |
| 4. |
In which parasitic infestation sputum examination is not of much value - |
| A. | Trichuris trichura |
| B. | Strongyloides |
| C. | Ancyclostoma duodenale |
| D. | Paragonimus Westermanii |
| Answer» D. Paragonimus Westermanii | |
| 5. |
Gonorrhea can be identified by ? |
| A. | Growth of MacConkey medium |
| B. | Growth at 37 Degree C |
| C. | By the fermentation of glucose |
| D. | Growth in 45%/60% bile |
| Answer» D. Growth in 45%/60% bile | |
| 6. |
Which of the following antigen is found within the nuclei of infected hepatocytes and NOT usually in the peripheral circulation in Hepatitis B infection ? |
| A. | HBe Ag |
| B. | HBc Ag |
| C. | Anti-HBc |
| D. | HBs Ag |
| Answer» C. Anti-HBc | |
| 7. |
The mass of an electron is |
| A. | 1⁄1840 of a neutron |
| B. | 1⁄1840 of a proton |
| C. | None of Above |
| D. | Both A and B |
| Answer» E. | |
| 8. |
A five year old child presents with pustular lesions on the lower legs.The culture from the lesion showed hemolytic gram positive coccii.Provisional diagnosis of Group A streptococcal pyoderma can be done by: |
| A. | Bile solubility |
| B. | Bacitracin sensitivity |
| C. | Catalase positivity |
| D. | Optochicin sensitivity |
| Answer» C. Catalase positivity | |
| 9. |
Most common cause of chronic granulomatous disease in children is: |
| A. | Defective phahgocytosis |
| B. | Myeloperoxidase deficiency |
| C. | Job's disease |
| D. | Defective H2O2 production |
| Answer» E. | |
| 10. |
TCA cycle functions in |
| A. | anabolic reactions |
| B. | catabolic reactions |
| C. | none of these |
| D. | amphibolic reactions |
| Answer» E. | |
| 11. |
All are true regarding diphtheria toxin EXCEPT - |
| A. | Toxin blocks elongation of protein |
| B. | Beta lysogenic strain produces toxin |
| C. | Iron in culture for toxin production |
| D. | Toxin is necessary for local wound production |
| Answer» E. | |
| 12. |
Most common agents responsible for human bite infections are: |
| A. | Spirochaete |
| B. | Anaerobic streptococci |
| C. | Gram-ve bacilli |
| D. | Gram+ve bacilli |
| Answer» C. Gram-ve bacilli | |
| 13. |
Dolichol phosphate is |
| A. | the anchor on which sugars assemble before transfer to proteins |
| B. | a complex lipid involved in docking vesicles with the plasma membrane |
| C. | a product of phospholipase C activation |
| D. | a chaperone used in protein folding |
| Answer» B. a complex lipid involved in docking vesicles with the plasma membrane | |
| 14. |
Pruteen is made by mixing bacteria in |
| A. | methanol |
| B. | ethanol |
| C. | petroleum |
| D. | Vaseline |
| Answer» B. ethanol | |
| 15. |
Diptheria is characterized by all except |
| A. | Endotoxemia |
| B. | Causes striking edematous swelling of cervical region |
| C. | Pseudomembrane formation |
| D. | Most common clinical form being faucial |
| Answer» B. Causes striking edematous swelling of cervical region | |
| 16. |
All of the following statements about Leptospirosis are true,Except: |
| A. | Mortality is 5-15 % in severe cases. |
| B. | Infection acquired by direct contact with infected urine |
| C. | IV peniciline is recommended for treatment of severe cases |
| D. | Antibodies are usually detectable in the first week |
| Answer» E. | |
| 17. |
Which of the following is the most primitive? |
| A. | Eukaryote |
| B. | Virus |
| C. | Mitochondria |
| D. | Archaeon |
| Answer» E. | |
| 18. |
Charcot Leyden crystals are derived from ? |
| A. | Macrophages |
| B. | Eosinophils |
| C. | Basophils |
| D. | Neutrophils |
| Answer» C. Basophils | |
| 19. |
Who discovered the bacteria that cause cholera? |
| A. | Robert Koch |
| B. | Pierre Berthelot |
| C. | Rudolf Virchow |
| D. | Louis Pasteur |
| Answer» B. Pierre Berthelot | |
| 20. |
Culture media used for diagnosis of EHEC O157: H7 is: |
| A. | Sorbitol Mac Conkey media |
| B. | O7 culture |
| C. | Deoxycholate Media |
| D. | XLD Agar |
| Answer» B. O7 culture | |
| 21. |
The nonsymbiotic bacteria which fix nitrogen live in the soil independently are |
| A. | Clostridium |
| B. | Azotobacter |
| C. | all of the above |
| D. | considerably less important in comparison to the symbiotic bacteria |
| Answer» D. considerably less important in comparison to the symbiotic bacteria | |
| 22. |
Food poisoning that present within 6 hours is due to ? |
| A. | Staphylococcus |
| B. | Salmonella |
| C. | Clostridium botulinum |
| D. | E. coli |
| Answer» B. Salmonella | |
| 23. |
Bacterial zoonosis A/e |
| A. | Leptospiroris |
| B. | Brucellosis |
| C. | Plague |
| D. | Hydatid cyst |
| Answer» E. | |
| 24. |
Which of the following genetic elements carry the genes required for integration into host chromosomes? |
| A. | Plasmids |
| B. | Replicon |
| C. | Tandons |
| D. | Transposons |
| Answer» B. Replicon | |
| 25. |
Reassortment is seen in - |
| A. | Rotavirus |
| B. | Astronovirus |
| C. | Herpesvirus |
| D. | Hepadnavirus |
| Answer» B. Astronovirus | |
| 26. |
The tick borne hemorrhagic fever found in Karnataka state is |
| A. | Japanese encephalitis |
| B. | Kyasanur Forest Disease |
| C. | Epidemic nephrosonephritis |
| D. | Lassa fever |
| Answer» C. Epidemic nephrosonephritis | |
| 27. |
Most common causes of Traveller's diarrhoea - |
| A. | Enteropathogenic E. coli |
| B. | Enteroinvasive E. coli |
| C. | Enterotoxigenic E. coli |
| D. | Enterohemorrhagia E. coli |
| Answer» D. Enterohemorrhagia E. coli | |
| 28. |
Which of the following cell types are the most ponent activators of naive T cells |
| A. | Follicular Dendritic cells |
| B. | B cells |
| C. | Macrophages |
| D. | Mature Dendritic cells |
| Answer» E. | |
| 29. |
Which is not a major defense mechanism in the stomach? |
| A. | Low pH |
| B. | Proteolytic enzymes |
| C. | All of these |
| D. | Dense normal flora |
| Answer» E. | |
| 30. |
The commonest Primary immunodeficiency is |
| A. | Common variable immunodeficiency |
| B. | Isolated IgA immunodeficiency |
| C. | Wiskott-Aldrich syndrome |
| D. | AIDS |
| Answer» C. Wiskott-Aldrich syndrome | |
| 31. |
True about V.Cholerae is : |
| A. | One attack of V.Cholerae gives live-long immunity |
| B. | Affects adults and children with equal propensity in non epidenic regions |
| C. | In between epidemics,carrier states maintain the organism |
| D. | Pathogencity of 0-139 vibrio is due to O antigen |
| Answer» E. | |
| 32. |
Phase mediate transfer of cDNA into host is known as ? |
| A. | Trsansduction |
| B. | Transformation |
| C. | Transmission |
| D. | Conjugation |
| Answer» B. Transformation | |
| 33. |
Which of the following is not true of Actinomycosis |
| A. | Demonstration of filaments |
| B. | Caused by actinomyces israelii |
| C. | Organism can not be cultured |
| D. | Sulphur granules in pus |
| Answer» D. Sulphur granules in pus | |
| 34. |
Stain used in electron microscopy ? |
| A. | 2.5% glutraldehyde |
| B. | Phosphotungstic acid |
| C. | Saffranin |
| D. | Coomassie blue |
| Answer» C. Saffranin | |
| 35. |
All are true regarding cytomegalovirus except: |
| A. | It is DNA virus |
| B. | Most commonly infected in last trimester |
| C. | Diagnosed by increased IgA in fetal blood |
| D. | Most common cause of congenital viral infection |
| Answer» D. Most common cause of congenital viral infection | |
| 36. |
Which of the following does not cause cavitation: |
| A. | Staphylococcus |
| B. | Histoplasma |
| C. | Viral infection |
| D. | Neoplasm |
| Answer» D. Neoplasm | |
| 37. |
Epidemiologic study of Hepatitis B is - |
| A. | HBe Ag |
| B. | HBc Ag |
| C. | HBs Ag is used |
| D. | Anti HBc |
| Answer» E. | |
| 38. |
IL-1 produces |
| A. | Increased pain perception |
| B. | Decreased PMN release from bone marrow |
| C. | T-lymphocyte activation |
| D. | Delayed wound healing |
| Answer» D. Delayed wound healing | |
| 39. |
Which Michael Crichton novel was published in 1990? |
| A. | Timeline |
| B. | The Great Train Robbery |
| C. | Prey |
| D. | Jurassic Park |
| Answer» E. | |
| 40. |
Pertusis toxin acts by all of the following mechanisms except |
| A. | Increase cyclic AMP |
| B. | ADP ribosylation of proteins associated with receptors |
| C. | Acts through G alpha subunit |
| D. | Increased calcium release from sarcoplasmic reticulam |
| Answer» E. | |
| 41. |
CAMP test is used to detect infection caused by - |
| A. | Streptococcus equsimilis |
| B. | Streptococcus agalactiae |
| C. | Streptococcus viridans |
| D. | Staphylococcus aureus |
| Answer» B. Streptococcus agalactiae | |
| 42. |
True regarding pseudomembranous colitis are all except: |
| A. | The organism is a normal commensal of gut |
| B. | It is caused by clostridium difficile |
| C. | It is treated by vancomycin |
| D. | It is due to production of phospholipase A |
| Answer» E. | |
| 43. |
Which of the following groups contain(s) many unique coenzymes, such as coenzyme M and coenzyme F420? |
| A. | Methanotrophs (methane-oxidizing microbes) |
| B. | Sulfate-reducing bacteria |
| C. | Acetogens (acetigens; acetate-producing microbes) |
| D. | Methanogens (methane-producing microbes) |
| Answer» E. | |
| 44. |
Heptane is: |
| A. | Small molecular weight protein |
| B. | Same as epitope |
| C. | Simple haptens are precipitate |
| D. | Requires carrier for specific antibody production |
| Answer» E. | |
| 45. |
Primary differences between cilia and flagella are |
| A. | length and location of basal bodies |
| B. | arrangement of microtubules |
| C. | number, length and direction of force |
| D. | how the microtubules are fused to each other |
| Answer» D. how the microtubules are fused to each other | |
| 46. |
Which of the following produces pocks on chorioallantoic membrane of chick embryo - |
| A. | Myxovirus |
| B. | Varicella |
| C. | Herpes simplex |
| D. | Cytomegalovirus |
| Answer» D. Cytomegalovirus | |
| 47. |
Which of the following is false about clostridium perfringes- |
| A. | Show positive naegler reaction |
| B. | Food poisoning causing strains of cl. perfringes produce heat resistant Spores |
| C. | Cl. perfringes is the most common cause of gas gangrene |
| D. | Most important toxin is hyaluronidase |
| Answer» E. | |
| 48. |
Drug resistance in tuberculosis is due to |
| A. | Transformation |
| B. | Transduction |
| C. | Conjugation |
| D. | Mutation |
| Answer» E. | |
| 49. |
The five-kingdom system of classification was set up by |
| A. | Robert Whittaker |
| B. | Louis Pasteur |
| C. | Masaki Ogata |
| D. | Robert Koch |
| Answer» B. Louis Pasteur | |
| 50. |
A farmer presents with pustules,which show Gram Positive Cocci on smear.Culture shows Beta hemolysis,and organisms are Catalase negative.To show that the identified organism is group A streptococci,which of the following test should be done? |
| A. | Bacitracin sensitivity |
| B. | Optochin sensitivity |
| C. | Novobiocin sensitivity |
| D. | Bile solubility |
| Answer» B. Optochin sensitivity | |