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 bacterial culture prepared by pureculture method is |
| A. | Inoculum |
| B. | Suspension |
| C. | Dilution |
| D. | None of these |
| Answer» B. Suspension | |
| 2. |
Higher does of chloramphenicol affects the eukaryotic cells because |
| A. | They have 30 S ribosomes |
| B. | They have mitochondria |
| C. | They have 70 S ribosomes |
| D. | None of the above |
| Answer» C. They have 70 S ribosomes | |
| 3. |
Intermediate group of pathogen between bacteria and viruses which are intracellular parasites are called |
| A. | Mucoplasma |
| B. | Rickettsias |
| C. | Prions |
| D. | Virusoides |
| Answer» C. Prions | |
| 4. |
Vrial genome can become integrated intothe bacterial genomes are known as |
| A. | Prophage |
| B. | Temperatephage |
| C. | Bacteriophage |
| D. | Metaphage |
| Answer» C. Bacteriophage | |
| 5. |
In algae, advanced type of sexual reproduction is |
| A. | Isogamy |
| B. | Anisogamy |
| C. | Oogamy |
| D. | None of these |
| Answer» D. None of these | |
| 6. |
Toxins or enzymes which are not produced by streptococcus pyrogens |
| A. | Hyaluronide |
| B. | Phosphate |
| C. | Hemolysin |
| D. | Streptokinase |
| Answer» C. Hemolysin | |
| 7. |
Salmonella typhi is causative organism of |
| A. | Undulent fever |
| B. | Remittent fever |
| C. | Dengue fever |
| D. | Enteric fever |
| Answer» E. | |
| 8. |
Gram positive bacteria appear as |
| A. | Pink |
| B. | Violet |
| C. | both a & b |
| D. | None of these |
| Answer» C. both a & b | |
| 9. |
Discontinuous heating is called |
| A. | Pasteurization |
| B. | Sterilization |
| C. | Fermentation |
| D. | Tindalisation |
| Answer» E. | |
| 10. |
A study involving analysis of risk forgenetic defects in a family is |
| A. | Genetic Engineering |
| B. | Genetic counseling |
| C. | Genetic drift |
| D. | Genetic equilibrium |
| Answer» E. | |
| 11. |
Microorganisms usually make acetylCO-A by oxidizing |
| A. | Acetic acid |
| B. | Pyruvic acid |
| C. | α-ketoglutaric acid |
| D. | Fumaric acid |
| Answer» B. Pyruvic acid | |
| 12. |
By using fluorescence property fluorescentantibody technique was developed by |
| A. | Kohler |
| B. | Coons |
| C. | Both and b |
| D. | None of these |
| Answer» C. Both and b | |
| 13. |
Temperature in pasteurization is |
| A. | 62.8oC |
| B. | 35.7o |
| C. | 68.2oC |
| D. | 60.8oC |
| Answer» B. 35.7o | |
| 14. |
If more than one kind of immunizingagent is included in the vaccine, it is |
| A. | Cellular vaccine |
| B. | Recombinant vaccine |
| C. | Mixed vaccine |
| D. | Toxoid vaccine |
| Answer» D. Toxoid vaccine | |
| 15. |
Hybridoma technique is used for |
| A. | Monoclonal antibodies |
| B. | Polyclonal antibodies |
| C. | Both a and b |
| D. | None of these |
| Answer» B. Polyclonal antibodies | |
| 16. |
Which of the following is not related tocongenital syphilis? |
| A. | Aneurysm |
| B. | Saddle nose |
| C. | Still birth |
| D. | Hutchiso’s teeth |
| Answer» B. Saddle nose | |
| 17. |
The Bacter ia move in response to magnetic field is |
| A. | Spirochets |
| B. | Treponema |
| C. | Aquaspirillum Magnetotacticum |
| D. | None of these |
| Answer» D. None of these | |
| 18. |
Other than the sample (specimen) theremaining portion is stained then it is called |
| A. | Simple staining |
| B. | Negative staining |
| C. | Differential staining |
| D. | None of these |
| Answer» C. Differential staining | |
| 19. |
Wilson and Blair bismuth sulphitemedium is used for the growth |
| A. | Salmonella typhi |
| B. | Shigella dysenteriae |
| C. | Vibrio cholerae |
| D. | E. coli |
| Answer» B. Shigella dysenteriae | |
| 20. |
Tetanus is caused by spread of |
| A. | Exotoxin in sympathetic system |
| B. | Exotoxin in para sympathetic system |
| C. | Endotoxin in sympathetic system |
| D. | Endotoxin in parasympathetic system |
| Answer» B. Exotoxin in para sympathetic system | |
| 21. |
Reverse isolation would be appropriatefor |
| A. | a patient with tuberculosis |
| B. | a patient who has had minor surgery |
| C. | a patient with glaucoma |
| D. | a patient with leukemia |
| Answer» B. a patient who has had minor surgery | |
| 22. |
The first symptom of tetanus is |
| A. | Lock jaw |
| B. | Trismus |
| C. | Anorexia |
| D. | Dyspagia |
| Answer» C. Anorexia | |
| 23. |
The technique involved in comparing the DNA components of two samples is known as |
| A. | Monoclonal antibody techniques |
| B. | Genetic finger printing |
| C. | Recombinant DNA technology |
| D. | Polymerase chain reaction |
| Answer» C. Recombinant DNA technology | |
| 24. |
How much of globulin is present in humanserum? |
| A. | 8% |
| B. | 12% |
| C. | 16% |
| D. | 4% |
| Answer» B. 12% | |
| 25. |
Antiseptic methods were first introducedby |
| A. | Lord Lister |
| B. | Iwanowski |
| C. | Beijernick |
| D. | Edward Jenner |
| Answer» B. Iwanowski | |
| 26. |
Clostridium welchii spore formation can be induced only on specified media such as |
| A. | Wilson-Blair medium |
| B. | Macconkey medium |
| C. | Ellner medium |
| D. | Thayee-Martion medium |
| Answer» D. Thayee-Martion medium | |
| 27. |
Meosomes are |
| A. | Kind of ribosomes |
| B. | Formed during cell lysis |
| C. | A part of cell wall |
| D. | Principal sites of respiratory enzymes |
| Answer» E. | |
| 28. |
Septicaemia is |
| A. | Bacteria in blood |
| B. | Toxin in blood |
| C. | Pus in blood |
| D. | Multiplication of bacteria and toxins in blood |
| Answer» E. | |
| 29. |
Fungal disease in human is caused by – |
| A. | Inhalation of conidia |
| B. | Invasion of mucous membrane |
| C. | Contamination of wounds with conidia or myceliat fragments |
| D. | All of these |
| Answer» E. | |
| 30. |
Cholera vaccine gives protection for |
| A. | 1 – 3 month |
| B. | 3 – 6 months |
| C. | 6 – 9 months |
| D. | 9-12 months |
| Answer» C. 6 – 9 months | |
| 31. |
The medium used in membrane filtertechnique was |
| A. | EMB agar |
| B. | EMR-Vp medium |
| C. | Lactose broth |
| D. | Endo agar |
| Answer» C. Lactose broth | |
| 32. |
The best studied example for specializedtransduction is |
| A. | P1 phage |
| B. | P22 phage |
| C. | ë-phage |
| D. | Both a and c |
| Answer» D. Both a and c | |
| 33. |
The virulence determining antigens of microorganisms may be |
| A. | Proteins and polysaccharides |
| B. | Carbohydrate – protein complexes |
| C. | Polysaccharide – Phospholipid – Protein complexes |
| D. | All of these |
| Answer» E. | |
| 34. |
The viruses that attack bacteria are |
| A. | Bacterial viruse |
| B. | Bacterial pathogens |
| C. | Bacteriophages |
| D. | Various |
| Answer» D. Various | |
| 35. |
Cyclic phosphorylation is generallypresent in |
| A. | Cyanobacteria |
| B. | Algae |
| C. | Bacteria |
| D. | Plants |
| Answer» B. Algae | |
| 36. |
DPT, is used as vaccine for |
| A. | Diphtheria |
| B. | Pertussis vaccine |
| C. | Tetanus toxoid |
| D. | All of these |
| Answer» E. | |
| 37. |
Submerged fermentations are |
| A. | Batch fermentation |
| B. | Continuous fermentation |
| C. | Both a and b |
| D. | None of these |
| Answer» D. None of these | |
| 38. |
Neurological complications followingrabies vaccines is common with |
| A. | Chick embryo vaccine |
| B. | HDCS vaccine |
| C. | Semple vaccine |
| D. | BPL vaccine |
| Answer» D. BPL vaccine | |
| 39. |
Virus causing mumps is also responsiblefor |
| A. | Measle |
| B. | Hepatitis A |
| C. | Rabies |
| D. | Variola |
| Answer» B. Hepatitis A | |
| 40. |
If the vectors transmit the infectionmechanically they are called |
| A. | Biological vectors |
| B. | Mechanical vectors |
| C. | Biological reservoir |
| D. | Both a and c |
| Answer» C. Biological reservoir | |
| 41. |
Tyndallisation was proposed by |
| A. | Tyndall |
| B. | Pasteur |
| C. | Koch |
| D. | Jenner |
| Answer» B. Pasteur | |
| 42. |
The strain of fungi used for the large scaleproduction of penicillin is |
| A. | Penicillium chrysogenum |
| B. | P-notatum |
| C. | Streptomyces Aurecus |
| D. | Saccharomyces sps |
| Answer» B. P-notatum | |
| 43. |
Influenza virus is identified by using |
| A. | Haemaggulutinin inhibition test |
| B. | Tissue culture method |
| C. | Embryonated eggs |
| D. | Plaque formation |
| Answer» B. Tissue culture method | |
| 44. |
Vaccines prepared from toxins andchemicals are |
| A. | Cellular vaccines |
| B. | Sub-cellular vaccines |
| C. | Attenuated vaccines |
| D. | Heterologous vaccines |
| Answer» C. Attenuated vaccines | |
| 45. |
In alchoholic fermentation, CO2 is evolvedduring |
| A. | Decarboxylatin of pyruvic acid |
| B. | Formation of acetaldehyde |
| C. | Oxidation of acetaldehyde |
| D. | Both a and b |
| Answer» E. | |
| 46. |
All of the following are acid fast structures except |
| A. | Clostridium |
| B. | Bacterium spores |
| C. | Exoskeleton |
| D. | None of these |
| Answer» B. Bacterium spores | |
| 47. |
Endemic typhus is caused by |
| A. | R.mooseri |
| B. | R.quintana |
| C. | R.prowazekii |
| D. | any of them |
| Answer» B. R.quintana | |
| 48. |
“Prozone phenomenon” is encounteredin |
| A. | A typical mycobacteria |
| B. | Brucella |
| C. | Streptococcus |
| D. | Bordetella pertusis |
| Answer» C. Streptococcus | |
| 49. |
Spirulina belongs to |
| A. | Xanthophyceae |
| B. | Cyanophyceae |
| C. | Rhodophyceae |
| D. | Pheophyceae |
| Answer» C. Rhodophyceae | |
| 50. |
Neil mooseri reaction is related to |
| A. | Rickettsiae |
| B. | Chlamydiae |
| C. | Spirochaetes |
| D. | Clostridium |
| Answer» B. Chlamydiae | |