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. |
Non-lactose fermenting colonies seen onMac Conkey’s medium are |
| A. | Salmonella typhi |
| B. | Escherichia coli |
| C. | Klebsiella pneumoniae |
| D. | Shigella shigae |
| Answer» B. Escherichia coli | |
| 2. |
The bacteria which are able to grow at 0°C but which grow at 20°C to 30°C, are known as |
| A. | Psychrophiles |
| B. | Facultative psychrophiles |
| C. | Average psychrophiles |
| D. | Mesophiles |
| Answer» D. Mesophiles | |
| 3. |
All the groups of bacteria have cell wall |
| A. | Mycobacteria |
| B. | Mycoplasmas |
| C. | Clostridia |
| D. | Rickettsia |
| Answer» C. Clostridia | |
| 4. |
Meosomes are also known as |
| A. | Mitochondria |
| B. | Endoplasmic reticulum |
| C. | Plasmids |
| D. | Chondroids |
| Answer» E. | |
| 5. |
Staphylococcus aureus are characterized by |
| A. | Formation of acid in sucrose, dextrose |
| B. | Liquification of gelatin due to production of gelatinase |
| C. | Strains are catalase positive |
| D. | All of above |
| Answer» D. All of above | |
| 6. |
Staphylococcus aureus was isolated by |
| A. | Rosenbach |
| B. | Louis Pasteur |
| C. | Passet |
| D. | Sir Alexander Ogston |
| Answer» C. Passet | |
| 7. |
Salt agar is used for |
| A. | Streptococcu |
| B. | Staphylococcus |
| C. | Vibrio |
| D. | Shigella |
| Answer» C. Vibrio | |
| 8. |
A gram positive organism which producesswarming on culture medium is |
| A. | Salmonella |
| B. | Clostridium |
| C. | Staphylococci |
| D. | Proteus |
| Answer» E. | |
| 9. |
Lyophilization means |
| A. | Sterilization |
| B. | Freeze-drying |
| C. | Burning to ashes |
| D. | Exposure to formation |
| Answer» C. Burning to ashes | |
| 10. |
The viruses that live as parasites on bacteria are |
| A. | Fungi |
| B. | Commensels |
| C. | Bacteriophages |
| D. | None of these |
| Answer» D. None of these | |
| 11. |
For ster i l izat ion of fermentat ionequipment the method followed is |
| A. | Radiation |
| B. | Chemicals |
| C. | Heating |
| D. | All of these |
| Answer» E. | |
| 12. |
Building blocks of Nucleic acids are |
| A. | Amino acid |
| B. | Nucleosides |
| C. | Nucleotides |
| D. | Nucleo proteins |
| Answer» D. Nucleo proteins | |
| 13. |
Poly A tail is frequently found in |
| A. | Histone in RNA |
| B. | Bacterial RNA |
| C. | eukaryotic RNA |
| D. | TRNA |
| Answer» D. TRNA | |
| 14. |
The potorespiration involves |
| A. | Calvin cycle |
| B. | Hatch-Slack cycle |
| C. | Glycolate cycle |
| D. | Kreb’s cycle |
| Answer» D. Kreb’s cycle | |
| 15. |
Industrial Production of Vitamin-B12 isfrom |
| A. | Propionibacterium sps. |
| B. | Pseudomonas sps. |
| C. | Both a and b |
| D. | None of these |
| Answer» D. None of these | |
| 16. |
Malignant pustule is caused by |
| A. | Anthrax |
| B. | Tetanus |
| C. | Diphtheria |
| D. | None of these |
| Answer» B. Tetanus | |
| 17. |
The virulence of a pathogen is usuallymeasured by |
| A. | LD |
| B. | MLD |
| C. | ID |
| D. | All of the above |
| Answer» E. | |
| 18. |
Prausnitz kustner reaction is generated by |
| A. | IgA |
| B. | IgE |
| C. | IgG |
| D. | IgD |
| Answer» C. IgG | |
| 19. |
Capsulated forms of bacteria are |
| A. | Virulent |
| B. | A virulent |
| C. | Useful |
| D. | Symbiotic |
| Answer» D. Symbiotic | |
| 20. |
B.anthracis was isolated by |
| A. | Louis Pasteur |
| B. | Robert Koch |
| C. | Antonyvon Leewenhok |
| D. | None of these |
| Answer» C. Antonyvon Leewenhok | |
| 21. |
Cell-wall is |
| A. | Thick in Gram positive than Gram negative |
| B. | Thick in Gram negative than Gram positive |
| C. | Equal in both |
| D. | In Gram negative cell-wall is absent |
| Answer» B. Thick in Gram negative than Gram positive | |
| 22. |
Amoebic dysentery in humans is causedby |
| A. | Plasmodium |
| B. | Paramecium |
| C. | Yeast |
| D. | Entamoeba histolytica |
| Answer» E. | |
| 23. |
A number of viruses are known to infectmycoplasmas, called |
| A. | Bacteriophages |
| B. | Mycoplasma phages |
| C. | Virions |
| D. | Tiny strains |
| Answer» C. Virions | |
| 24. |
Lepromin test |
| A. | Is negative in tubercular leprosy |
| B. | Positive in lepromatous type |
| C. | Indicated delayed hypersensitivity test |
| D. | Indicates infection |
| Answer» D. Indicates infection | |
| 25. |
Which of the following vaccine contains attenuated form of bacteria? |
| A. | BCG |
| B. | TAB |
| C. | Polio |
| D. | Cholera |
| Answer» B. TAB | |
| 26. |
Drug resistance to sulphonamides is dueto |
| A. | Production of PABA |
| B. | Folic acid synthetase |
| C. | Drug alteration |
| D. | Low affinity for drug synthesis by bacteria |
| Answer» C. Drug alteration | |
| 27. |
Thickness of cell wall ranges from |
| A. | 9-10 nm |
| B. | 12-13 nm |
| C. | 10-25 nm |
| D. | 30-40 nm |
| Answer» D. 30-40 nm | |
| 28. |
Self-replicating, small circular DNA molecules present in bacterial cell are known |
| A. | Plasmid |
| B. | Cosmids |
| C. | Plasmomeros |
| D. | plastides |
| Answer» B. Cosmids | |
| 29. |
Which one of the following fungi is the most serious threat in a bone marrow transplant unit? |
| A. | Candida albican |
| B. | Aspergillus |
| C. | Blastomyces |
| D. | Cryptococus |
| Answer» C. Blastomyces | |
| 30. |
One of the genes present exclusively on the X-chromosome in humans is concerned with |
| A. | Baldness |
| B. | Red-green colour baldness |
| C. | Facial hair/moustache in males |
| D. | Night blindness |
| Answer» C. Facial hair/moustache in males | |
| 31. |
The following Penicillium species arepathogenic except |
| A. | P. commune |
| B. | P. bicolor |
| C. | P. glaucum |
| D. | P.notatum |
| Answer» E. | |
| 32. |
Streptococcus pneumoniae was isolated by |
| A. | Robert Koch |
| B. | Edward Jenner |
| C. | Antony von Leewenhock |
| D. | Louis Pasteur |
| Answer» E. | |
| 33. |
Condensation of light in light Microscopeis by |
| A. | Objective |
| B. | Condensor |
| C. | Ocular |
| D. | All of these |
| Answer» C. Ocular | |
| 34. |
Streptokinase is also termed as |
| A. | Fibrionolysin |
| B. | Catalase |
| C. | Coagulase |
| D. | Hyaluronidase |
| Answer» B. Catalase | |
| 35. |
The size of the virus can be determinedby |
| A. | Micrography |
| B. | Ultra-centrifugation at high speed |
| C. | Ultra-filteration |
| D. | All of these |
| Answer» E. | |
| 36. |
Vitamin function as |
| A. | Co-enzymes |
| B. | Co-melecules |
| C. | Building blocks of cell |
| D. | None of these |
| Answer» D. None of these | |
| 37. |
Rabies virus is |
| A. | Nake RNA virus |
| B. | Naked DNA virus |
| C. | Enveloped RNA virus |
| D. | Enveloped DNA virus |
| Answer» D. Enveloped DNA virus | |
| 38. |
The bacterial pili mainly contain |
| A. | Carbohydrate |
| B. | Lipids |
| C. | Proteins |
| D. | Minerals |
| Answer» D. Minerals | |
| 39. |
Presence of viable bacteria in the blood stream is called |
| A. | Viraemia |
| B. | Septicaemia |
| C. | Bacteraemia |
| D. | Bactericidal |
| Answer» D. Bactericidal | |
| 40. |
“I found floating therin earthly particles, some green streaks, spirally wound serpent-wise, and orderly arranged, the whole circumstance of each of these streaks was abut the thickness of a hair on one’s head”…. These words are of |
| A. | Leeuwenhoek |
| B. | A. Jenner |
| C. | Pasteur |
| D. | Koch |
| Answer» B. A. Jenner | |
| 41. |
Clsotridium welchii is positive for |
| A. | Elek’s gel precipitation test |
| B. | Nagler’s test |
| C. | Weil felix test |
| D. | Bacitracin test |
| Answer» C. Weil felix test | |
| 42. |
All the antibodies produced from a â-cellare having |
| A. | Similar specificity |
| B. | Different specificities |
| C. | Similar size |
| D. | None of these |
| Answer» B. Different specificities | |
| 43. |
In Elisa technique, the antibodies arelabeled by |
| A. | Acridine orange |
| B. | Alkaline phosphate |
| C. | Neutral red |
| D. | Bromothymol blue |
| Answer» C. Neutral red | |
| 44. |
Syndromes associated with Human Tlymphotropic virus type I(HTLV-I) are |
| A. | Adult T-cell lymphoma |
| B. | Hairy cell leukemia |
| C. | Adult T cell leukemia |
| D. | All of these |
| Answer» C. Adult T cell leukemia | |
| 45. |
Disease that affects many people atdifferent countries is termed as |
| A. | Sporadic |
| B. | Pandemic |
| C. | Epidemic |
| D. | Endemic |
| Answer» C. Epidemic | |
| 46. |
To transfer cultures from one place toanother, the device used is |
| A. | Slant |
| B. | Needle |
| C. | Inoculation loop |
| D. | Autoclave |
| Answer» C. Inoculation loop | |
| 47. |
Diphtheria is an example of |
| A. | Bacteraemia |
| B. | Pyaemia |
| C. | Septicemia |
| D. | Toxaemia |
| Answer» E. | |
| 48. |
Fluroscent substance used in fluorescent microscopy are |
| A. | Quinine sulphate |
| B. | Auramine |
| C. | All of these |
| D. | None of these |
| Answer» D. None of these | |
| 49. |
What is the similarity between IgM &IgG? |
| A. | A compliment fixation |
| B. | Placental transport |
| C. | Heat stability at 56oC |
| D. | Sedimentation coefficient |
| Answer» B. Placental transport | |
| 50. |
Salts of heavy metals used as disinfectants are |
| A. | Thiomersal |
| B. | Phenyl mercury nitrate |
| C. | Mercurochrome |
| D. | All of these |
| Answer» E. | |