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. |
The differences between Gram positive and Gram negative bacteria is shown to reside in the |
| A. | Cell wall |
| B. | Nucleus |
| C. | Cell membrane |
| D. | Mesosomes |
| Answer» B. Nucleus | |
| 2. |
E.coli was first isolated by |
| A. | Louis Pasteur |
| B. | Escherich |
| C. | Shiga |
| D. | Robert Koch |
| Answer» C. Shiga | |
| 3. |
Plasma cells are the end cells of |
| A. | T-cell |
| B. | β-cells |
| C. | Killer cells |
| D. | Nk-cells |
| Answer» C. Killer cells | |
| 4. |
Growth curve does not include followingphases of bacteria – |
| A. | Decline phase |
| B. | Stationary phase |
| C. | Lag phase |
| D. | Synchronous growth |
| Answer» E. | |
| 5. |
DPT is given to children at the age of 16-24 months, as the dose is |
| A. | 0.5 ml at intervals of 4 weeks |
| B. | A booster dose of 0.5 ml |
| C. | Both a and b |
| D. | None of these |
| Answer» D. None of these | |
| 6. |
Shigella was first isolated by |
| A. | Shiga |
| B. | Schmitz |
| C. | Sonnei |
| D. | Robert Koch |
| Answer» D. Robert Koch | |
| 7. |
Causative agent of Tinea nigra |
| A. | Malassezia furfur |
| B. | Exophiala werenekii |
| C. | Candida albicans |
| D. | Aspergillus flavus |
| Answer» C. Candida albicans | |
| 8. |
Spirochaelis are sensitive to |
| A. | Penicillin |
| B. | Chloramphenicols |
| C. | Erythromycin |
| D. | Tetracyclins |
| Answer» C. Erythromycin | |
| 9. |
Father of microbiology is |
| A. | Louis Pasteur |
| B. | Lister |
| C. | A.V. Leeuwenhock |
| D. | Robert Koch |
| Answer» D. Robert Koch | |
| 10. |
DPT is |
| A. | Triple vaccine |
| B. | Double vaccine |
| C. | Tetanus toxoid |
| D. | All of these |
| Answer» B. Double vaccine | |
| 11. |
Teichoic acids and Teichuronic acids arefound in |
| A. | Gram positive bacteria |
| B. | Gram negative bacteria |
| C. | Fungi |
| D. | None of these |
| Answer» B. Gram negative bacteria | |
| 12. |
Cytochromes are |
| A. | Oxygen acceptor |
| B. | ATP acceptors |
| C. | Electron acceptors |
| D. | Protein acceptors |
| Answer» D. Protein acceptors | |
| 13. |
Antibody having high valency is |
| A. | IgG |
| B. | IgA |
| C. | IgD |
| D. | IgM |
| Answer» E. | |
| 14. |
Mordant used in grams staining is |
| A. | Crystal violet |
| B. | Iodine |
| C. | Saffranin |
| D. | All of these |
| Answer» C. Saffranin | |
| 15. |
Which of the following is an example ofRNA virus? |
| A. | SV 40 |
| B. | T4 phage |
| C. | Tobacco mosaic virus |
| D. | Adeno virus |
| Answer» D. Adeno virus | |
| 16. |
Mantoux test detects |
| A. | M. tuberculosi |
| B. | Cynaobacteria |
| C. | Clostridia |
| D. | Both a and b |
| Answer» B. Cynaobacteria | |
| 17. |
The following characters are true aboutNeisseria gonorrhoeae except |
| A. | Gram-negative, aerobic bacteria |
| B. | Non-motile diplococci |
| C. | Oxidase positive organisms |
| D. | Air borne infection |
| Answer» E. | |
| 18. |
The fo l low ing are used for thepreservation of virus, except |
| A. | Freezing (–20°C–70°C) |
| B. | Lyophilization |
| C. | Ether |
| D. | Formaldehyde |
| Answer» D. Formaldehyde | |
| 19. |
When food material are preserved at a temperature just above freezing temperature, the process is called. |
| A. | Freezing |
| B. | Pasteurisation |
| C. | Chilling |
| D. | Frosting |
| Answer» D. Frosting | |
| 20. |
Thin blood smear for malaria is used toidentify |
| A. | Plasmodium |
| B. | Gametocytes |
| C. | Type of parasite |
| D. | Schizont |
| Answer» D. Schizont | |
| 21. |
The major role of minor elements insideliving organisms is to act as |
| A. | Co-factors of enzymes |
| B. | Building blocks of important amino acids |
| C. | Constituents of hormones |
| D. | Binder of cell structure |
| Answer» B. Building blocks of important amino acids | |
| 22. |
The causative agent of scrub typhus: |
| A. | R.Quintana |
| B. | R.rickettsii |
| C. | R.orinetalis |
| D. | R.prowazekii |
| Answer» D. R.prowazekii | |
| 23. |
Which antibody is called millionairemolecule? |
| A. | IgA |
| B. | IgM |
| C. | IgG |
| D. | IgD |
| Answer» C. IgG | |
| 24. |
What disease the Nesser will produce? |
| A. | Mump |
| B. | Rubella |
| C. | Polio |
| D. | Measles |
| Answer» E. | |
| 25. |
Lab diagnosis of Leishmaniasis is done by |
| A. | CFT |
| B. | Peripheral smear |
| C. | Blood culture |
| D. | All of these |
| Answer» E. | |
| 26. |
The sterilizing agent is |
| A. | Ethelene oxide |
| B. | Oxygen |
| C. | Nitrogen |
| D. | Carbon tetrachloride |
| Answer» B. Oxygen | |
| 27. |
Viral genome that can become integratedinto bacterial genome is called |
| A. | Prophage |
| B. | Temperate phage |
| C. | Bacteriophage |
| D. | Metaphage |
| Answer» B. Temperate phage | |
| 28. |
The term bacteriophage was coined by |
| A. | De’Herelle |
| B. | F.W. Twort |
| C. | Beijernick |
| D. | Jwanosky |
| Answer» B. F.W. Twort | |
| 29. |
Gonorrhoea is |
| A. | Air borne disease |
| B. | Water borne disease |
| C. | Sexually transmitted venereal disease |
| D. | Both a and c |
| Answer» D. Both a and c | |
| 30. |
Yellow fever is caused by |
| A. | Bunya viru |
| B. | Calci virus |
| C. | Arbo virus |
| D. | None of these |
| Answer» D. None of these | |
| 31. |
The best medium for the production ofPenicillin is |
| A. | Nutrient agar |
| B. | Corn steep liquor |
| C. | Sulfite waste liquor |
| D. | Whey |
| Answer» C. Sulfite waste liquor | |
| 32. |
Incomplete antigens are called |
| A. | Immunogen |
| B. | Epitomes |
| C. | Haptens |
| D. | Paratope |
| Answer» D. Paratope | |
| 33. |
Urea is decomposed by the species |
| A. | Micrococcus sps. |
| B. | Nitrosomonas sps. |
| C. | Proteus sps. |
| D. | Both a and c |
| Answer» E. | |
| 34. |
Main symptom of tuberculosis is |
| A. | Tubercle formation |
| B. | Liquid formation |
| C. | Both a and b |
| D. | None of these |
| Answer» B. Liquid formation | |
| 35. |
The orderly increase in the quantity of allthe cellular components is known as |
| A. | Reproduction |
| B. | Growth |
| C. | Binary fission |
| D. | None of these |
| Answer» C. Binary fission | |
| 36. |
Viral infection of bacteria was discoveredby |
| A. | De’Herelle |
| B. | F.W. Twort |
| C. | Beijernick |
| D. | Jwanoksy |
| Answer» C. Beijernick | |
| 37. |
The Largest virus is |
| A. | Parvo viru |
| B. | Pox virus |
| C. | Rhabdo virus |
| D. | None of these |
| Answer» C. Rhabdo virus | |
| 38. |
The widely used yeast for the productionof single cell protein is |
| A. | Saccharomyces cerevisiae |
| B. | Rhizopus |
| C. | Candida utilis |
| D. | All of the above |
| Answer» D. All of the above | |
| 39. |
Which of the following change is atransition? |
| A. | ATGC’!ATCC |
| B. | ATGC’!ATGG |
| C. | ATGC’!AGGC |
| D. | None of these |
| Answer» E. | |
| 40. |
Surface ropiness is caused by |
| A. | Alkaligenes viscolactis |
| B. | Streptococcus |
| C. | both a and b |
| D. | None of these |
| Answer» E. | |
| 41. |
The wonder drug of second world war isproduced by |
| A. | Algae |
| B. | Fungi |
| C. | Bacteria |
| D. | Plants |
| Answer» C. Bacteria | |
| 42. |
Radical shifts can be prevented by adding |
| A. | Acid |
| B. | Alkali |
| C. | Buffer |
| D. | None of these |
| Answer» D. None of these | |
| 43. |
Serological reactions are useful for |
| A. | Detection of antigens |
| B. | Detection of antibodies |
| C. | Both a and b |
| D. | None of these |
| Answer» D. None of these | |
| 44. |
A gene that takes part in the synthesis ofpolypeptide is |
| A. | Structural gene |
| B. | Regulator gene |
| C. | Operator gene |
| D. | Promoter gene |
| Answer» B. Regulator gene | |
| 45. |
Man is intermediate host for |
| A. | Guinea Worm |
| B. | Filaria |
| C. | Malaria |
| D. | Kala-azar |
| Answer» D. Kala-azar | |
| 46. |
The mode of reproduction which occursin mycoplasma is |
| A. | Budding |
| B. | Bursting |
| C. | Binary fission |
| D. | Binary fusion |
| Answer» D. Binary fusion | |
| 47. |
Bacterial ribosomes are composed of |
| A. | Protein and DNA |
| B. | Protein and mRNA |
| C. | Protein and rRNA |
| D. | Protein and tRNA |
| Answer» D. Protein and tRNA | |
| 48. |
Bacteria are more sensitive to antibioticsat which phase of growth curve? |
| A. | Decline phase |
| B. | Stationary phase |
| C. | Lag phase |
| D. | Log phase |
| Answer» E. | |
| 49. |
The procedure of differential staining of bacteria was developed by |
| A. | A.H. Gram |
| B. | H.C. Gram |
| C. | N.C. Gram |
| D. | H.A. Gram |
| Answer» C. N.C. Gram | |
| 50. |
Glutamic acid is oxidized by the speciesexcept |
| A. | abortus b. B. melienasis |
| B. | B. suis |
| C. | B.canis |
| Answer» E. | |