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. |
To differentiate lactose and non-lactosefermentors the medium used is |
| A. | Mac Conkey’s medium |
| B. | Stuart’s medium |
| C. | Sugar medium |
| D. | Citrate medium |
| Answer» B. Stuart’s medium | |
| 2. |
Bartholin cyst is caused by |
| A. | Candida |
| B. | Streptococcus |
| C. | Staphylococcus |
| D. | Gonococcus |
| Answer» E. | |
| 3. |
In which of the follwing microorganism, conjunction tube was not produced during conjunction process? |
| A. | Thiobaillus thiooxidence |
| B. | T. ferroxidance |
| C. | Tetrahymena thermophila |
| D. | Cryptaporiclium |
| Answer» B. T. ferroxidance | |
| 4. |
Somatic cell of the adult body are haploidin many except |
| A. | Vertebrate |
| B. | Invertebrates |
| C. | Fungi |
| D. | Vascular plants |
| Answer» D. Vascular plants | |
| 5. |
The organisms which can grow best in the presence of a low concentration of oxygen |
| A. | Aerophilic |
| B. | Microaerophilic |
| C. | Aerobic |
| D. | Anaerobic |
| Answer» C. Aerobic | |
| 6. |
Attenuated, oral poliomyelitis vaccine is |
| A. | BCG |
| B. | Measles vaccine |
| C. | Sabin vaccine |
| D. | TAB vaccine |
| Answer» D. TAB vaccine | |
| 7. |
Light gathering capacity of Microscope iscalled |
| A. | Numerical aperture |
| B. | Angular aperture |
| C. | Both a and b |
| D. | None of these |
| Answer» B. Angular aperture | |
| 8. |
Temperature required for pasteurizationis |
| A. | Above 150oC |
| B. | Below 100oC |
| C. | 110oC |
| D. | None of these |
| Answer» C. 110oC | |
| 9. |
Innate immunity is developed by |
| A. | Mechanical barriers |
| B. | Chemical barriers |
| C. | Both a and b |
| D. | None of these |
| Answer» D. None of these | |
| 10. |
Diagnosis of carrier of salmonella typhimay be shown by |
| A. | Fecal culture |
| B. | Bile culture |
| C. | Urine culture |
| D. | All of these |
| Answer» E. | |
| 11. |
Upto the product ion of des irab leproduction in the fermentor is called |
| A. | Upstream process |
| B. | Downstream process |
| C. | Surface fermentation |
| D. | None of these |
| Answer» C. Surface fermentation | |
| 12. |
Rheumatic fever is most commonlycaused by |
| A. | Str. viridan |
| B. | Str. pyogenes |
| C. | Stph. aures |
| D. | None of these |
| Answer» C. Stph. aures | |
| 13. |
Nuc le ic ac ids are h igh ly charged polymers due to |
| A. | There is phosphodiester bond between 5’- hydroxyl of one ribose and 3’–hydroxyl of next ribose |
| B. | They have positive and negative ends |
| C. | Nucleotides are charged structures |
| D. | Nitrogenous bases are highly ionized compounds |
| Answer» B. They have positive and negative ends | |
| 14. |
Which of the following is penicillinaseresistang acid labile penicillin? |
| A. | Amoxycillin |
| B. | Cloxacillin |
| C. | Carbenicillin |
| D. | Methicillin |
| Answer» E. | |
| 15. |
Antibiotics used in combination maydemonstrate |
| A. | Synergism |
| B. | Antaginism |
| C. | both |
| D. | None of these |
| Answer» D. None of these | |
| 16. |
Majority of bacteria are |
| A. | Saprophyte |
| B. | Symbionts |
| C. | Commensals |
| D. | Parasites |
| Answer» E. | |
| 17. |
Nergibodies produced by rabies virusshow characteristic _____ inner granues |
| A. | Basophilic |
| B. | Eosinophilic |
| C. | Neutrophilic |
| D. | Acidophilic |
| Answer» B. Eosinophilic | |
| 18. |
Lepra bacillus is best cultured on |
| A. | Armadillo’s brain |
| B. | Foot pad of mice |
| C. | Liver of guinea pig |
| D. | Any of the above |
| Answer» C. Liver of guinea pig | |
| 19. |
Transgenic animals are produced whenGH gene fused with |
| A. | MT gene |
| B. | GH |
| C. | GRF |
| D. | FIX |
| Answer» B. GH | |
| 20. |
When a particular antigen is mixed with antibody in the presence of an electrolyte at suitable temperature and pH the particles are clumped, this is called: |
| A. | Precipitation |
| B. | Agglutination |
| C. | Electrophoresis |
| D. | CIE |
| Answer» C. Electrophoresis | |
| 21. |
An example of competitive inhibition of an enzyme is the inhibition of |
| A. | Succinic dehydrogenase by malonic acid |
| B. | Cytochrome oxidase by cyanide |
| C. | Hexokinase by glucose-6-phosphate |
| D. | Carbonic anhydrase by carbon dioxide |
| Answer» B. Cytochrome oxidase by cyanide | |
| 22. |
In Streptococcus fecalis, the conjugationtakes place at |
| A. | Pili |
| B. | Cell membrane |
| C. | Cell wall |
| D. | Flagella |
| Answer» D. Flagella | |
| 23. |
Antibodies in our body are produced by |
| A. | B-lymphocyte |
| B. | T-lymphocytes |
| C. | Monocytes |
| D. | RBC’s |
| Answer» B. T-lymphocytes | |
| 24. |
The mode of spread of tetanus neurotoxinfrom blood to brain is |
| A. | Via lymphaties |
| B. | Arterial blood |
| C. | Cranial nerves |
| D. | None of these |
| Answer» D. None of these | |
| 25. |
In human being str. pneumoniae causes |
| A. | Septicaemia |
| B. | Paronychia |
| C. | Pneumomnia |
| D. | None of these |
| Answer» D. None of these | |
| 26. |
The e lectron passed out from thespecimen are called |
| A. | Primary electron |
| B. | Secondary electrons |
| C. | Tertiary electrons |
| D. | None of these |
| Answer» C. Tertiary electrons | |
| 27. |
The points at which crossing over hastaken place between homologus chromosomes are called |
| A. | Chiasmata |
| B. | Synaptonemal complex |
| C. | Centromeres |
| D. | Protein axes |
| Answer» B. Synaptonemal complex | |
| 28. |
Special feature of Retro viruses |
| A. | Reverse transcriptase |
| B. | RNA directed DNA polymerases |
| C. | Both a & b |
| D. | Boils |
| Answer» D. Boils | |
| 29. |
The m in imum number of bacter ia required to produce clinical evidence of death in a susceptible animal under standard condition is called |
| A. | LD50 |
| B. | ID |
| C. | MLD |
| D. | All of these |
| Answer» D. All of these | |
| 30. |
The orderly increase in all componentsof protoplasm of a cell is called |
| A. | Reproduction |
| B. | Cell division |
| C. | Growth |
| D. | All of the above |
| Answer» D. All of the above | |
| 31. |
Innate immunity is |
| A. | Specific |
| B. | Non-specific |
| C. | Active |
| D. | Passive |
| Answer» C. Active | |
| 32. |
Clostridium acetobutylicum is used for theproduction of |
| A. | Acetone - Butanol |
| B. | Ethanol |
| C. | Vitamin-B12 |
| D. | None of these |
| Answer» C. Vitamin-B12 | |
| 33. |
Of which clostridia, the neurotoxin is mostpowerful? |
| A. | Cl. tetani |
| B. | Cl. welchii |
| C. | Cl. botulism |
| D. | Cl. septicum |
| Answer» D. Cl. septicum | |
| 34. |
V itam in B12 can be estimated anddetermined by using organism |
| A. | Lactobacillus sps |
| B. | Lactobacillus Leichmanni |
| C. | Bacillus subtilis |
| D. | E.Coli |
| Answer» C. Bacillus subtilis | |
| 35. |
Rhabdo viruses are belonging to thefamily: |
| A. | Rhabdo viridae |
| B. | Toga viridae |
| C. | Paramyxo viridae |
| D. | None of these |
| Answer» B. Toga viridae | |
| 36. |
Which of the following are acid faststructures? |
| A. | Mycobacteria |
| B. | Bacterial spores |
| C. | Nocardia |
| D. | All of these |
| Answer» E. | |
| 37. |
The radical teatment of malaria is to half |
| A. | Gametocyte |
| B. | Exo-erythrocytic phase |
| C. | Erythrocytic phase |
| D. | All of these |
| Answer» D. All of these | |
| 38. |
Biological false reaction in VDRL is relatedto |
| A. | Lepra bacilli |
| B. | Corynebacterium diphtheria |
| C. | Cl.welchi |
| D. | None of these |
| Answer» B. Corynebacterium diphtheria | |
| 39. |
Most bacteria do not require the ion |
| A. | Mg2+ |
| B. | Ca2+ |
| C. | Na+ |
| D. | Fe+2 |
| Answer» D. Fe+2 | |
| 40. |
Which of the following are inactive viralvaccines? |
| A. | Influenzae |
| B. | Rabies |
| C. | Russian spring summer encephalitis |
| D. | All of these |
| Answer» E. | |
| 41. |
Enzymes respons ib le for a lcoho l icfermentation |
| A. | Ketolase |
| B. | Zymase |
| C. | Peroxidase |
| D. | Oxidase |
| Answer» C. Peroxidase | |
| 42. |
First genetically engineered and biotechnologically produced vaccine was against |
| A. | AID |
| B. | Small pox |
| C. | Herpes simplex |
| D. | Hepatitis B. |
| Answer» C. Herpes simplex | |
| 43. |
The use of monoclonal antibodies is |
| A. | Immunotherapy |
| B. | Gene therapy |
| C. | Blood transfusion |
| D. | Organ transfusion |
| Answer» B. Gene therapy | |
| 44. |
Penicillin is a |
| A. | Primary metabolite |
| B. | Secondary metabolite |
| C. | Tertiary metabolite |
| D. | None of the above |
| Answer» C. Tertiary metabolite | |
| 45. |
The vitamin required for Lactobacillusspecies is |
| A. | Riboflavin |
| B. | Niacin |
| C. | Pyridoxine |
| D. | Folic acid |
| Answer» C. Pyridoxine | |
| 46. |
Growth of influenza virus is identified by |
| A. | Cytopathic effect |
| B. | Hela cells |
| C. | Both a and b |
| D. | None of these |
| Answer» C. Both a and b | |
| 47. |
In falciparum malaria, all of the followingstages are seen except |
| A. | Ring stage |
| B. | Schizont |
| C. | Gametocyte |
| D. | None of these |
| Answer» C. Gametocyte | |
| 48. |
Culture medium of Leishmania is |
| A. | Sabousand’s medium |
| B. | NNN medium |
| C. | Wilson Blair medium |
| D. | Czapek – dox medium |
| Answer» C. Wilson Blair medium | |
| 49. |
Influenza virus contains |
| A. | Eight segments of RNA |
| B. | Two strands of RNA |
| C. | Single RNA |
| D. | None of these |
| Answer» C. Single RNA | |
| 50. |
Theobacillus thio oxidans grow at pH |
| A. | 7.0 |
| B. | 1.0 |
| C. | 6.0 |
| D. | 9.5 |
| Answer» C. 6.0 | |