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 colonies produced by Pseudomonason Mac Conkey’s medium are |
| A. | Purple colored |
| B. | Pink colored |
| C. | Pale colored |
| D. | Green colored |
| Answer» D. Green colored | |
| 2. |
The most abundant antibody found inserum is |
| A. | IgA – 1 |
| B. | IgG – 1 |
| C. | IgG – 2 |
| D. | IgG – 3 |
| Answer» B. IgG – 1 | |
| 3. |
Incubation period of Cl. welchii is |
| A. | 8-12 hour |
| B. | 7-10 hours |
| C. | 5-7 hours |
| D. | 2-4 hours |
| Answer» B. 7-10 hours | |
| 4. |
Meosomes are the part of |
| A. | Plasma membrane |
| B. | ER |
| C. | Lysosomes |
| D. | Golgi |
| Answer» B. ER | |
| 5. |
Sexual reproduction of algae is carried by |
| A. | Isogamy |
| B. | Anisogamy |
| C. | Oogamy |
| D. | All the above |
| Answer» E. | |
| 6. |
Analysis of protein antigen is by |
| A. | Southern blot |
| B. | Northern blot |
| C. | Western blot |
| D. | None of these |
| Answer» D. None of these | |
| 7. |
Symbionts are |
| A. | Bacteria in symbiotic association |
| B. | The group of fungi in symbiotic association |
| C. | The groups participating in symbiotic association |
| D. | All of these |
| Answer» D. All of these | |
| 8. |
The size of virus particle may range |
| A. | 0.02–0.2 ìm |
| B. | 0.5–10 ìm |
| C. | 0.015–0.2 ìm |
| D. | 0.1–100 ìm |
| Answer» D. 0.1–100 ìm | |
| 9. |
Vibrio cholera differs from vibrio eltor by |
| A. | It shares some Inaba, Ogawa subtypes with eltor |
| B. | Resistant to polymuxin |
| C. | Eltor is non-motile |
| D. | Causes less subclinical infections as compared |
| Answer» E. | |
| 10. |
The first antibody to contact invadingmicroorganisms was |
| A. | IgG |
| B. | IgM |
| C. | IgA |
| D. | IgD |
| Answer» C. IgA | |
| 11. |
The causative organism of cholera, i.e., Vibrio show the movement called |
| A. | Gliding movement |
| B. | Darting movement |
| C. | Pseudopoidal movement |
| D. | None of these |
| Answer» C. Pseudopoidal movement | |
| 12. |
Culture medium for Mycobacteriumtuberculosis |
| A. | LJ medium |
| B. | Mac Conkey’s medium |
| C. | Wilson blair medium |
| D. | None of these |
| Answer» B. Mac Conkey’s medium | |
| 13. |
The condition required for autoclave |
| A. | 121oC temp.and 15 lbs. pressure for 20 min. |
| B. | 120oC temp.and 20 lbs. pressure for 30 min |
| C. | 150oC temp.for 1 hr. |
| D. | 130oC temp for 2 hr. |
| Answer» D. 130oC temp for 2 hr. | |
| 14. |
One flagelium at one end of the organ is called – |
| A. | Monotrichate |
| B. | Amphitrichate |
| C. | Iophotrichate |
| D. | Peritrichate |
| Answer» B. Amphitrichate | |
| 15. |
Premunition is particularly seen in – |
| A. | Ascari |
| B. | Giardia |
| C. | Plasmodium |
| D. | None of these |
| Answer» D. None of these | |
| 16. |
Production of RNA from DNA is called |
| A. | Translation |
| B. | RNA splicing |
| C. | Transcription |
| D. | Transposition |
| Answer» D. Transposition | |
| 17. |
In the sigmoid curve (or) growth curve ofbacteria how many stages are there |
| A. | 3 |
| B. | 4 |
| C. | 2 |
| D. | 5 |
| Answer» C. 2 | |
| 18. |
Techoic acid is – |
| A. | Found in the walls of Gram positive bacteria |
| B. | Provide receptors for phages |
| C. | Make up outer wall of Gram negative bacteria |
| D. | Influence the permeability of the membrane |
| Answer» B. Provide receptors for phages | |
| 19. |
Fungi producting mycelium are called |
| A. | Mould |
| B. | Filamentous fungi |
| C. | Both a and b |
| D. | Yeasts |
| Answer» B. Filamentous fungi | |
| 20. |
The term that is used for the bacteria which can withstand pasteurization but does not grow at higher temperatures |
| A. | Thermophiles |
| B. | Extreme thermophiles |
| C. | Thermoduric |
| D. | Facultative thermophiles |
| Answer» D. Facultative thermophiles | |
| 21. |
The raw material for citric acid productionis |
| A. | Corn |
| B. | Molasses |
| C. | Starch |
| D. | None of these |
| Answer» B. Molasses | |
| 22. |
The causative organism of rocky mountainspotted fever was first described by |
| A. | Howard Rickett |
| B. | da Rocha-lima |
| C. | Both a and b |
| D. | Robert Koch |
| Answer» D. Robert Koch | |
| 23. |
Phycobiont is |
| A. | The algal part in Lichens |
| B. | The fungal part in Lichens |
| C. | Laustoria formation |
| D. | None of these |
| Answer» B. The fungal part in Lichens | |
| 24. |
The ability of a pathogen to spread in ths host tissues after establishing the infection is known as |
| A. | Adhesion |
| B. | Invasiveness |
| C. | Toxigenicity |
| D. | None of these |
| Answer» C. Toxigenicity | |
| 25. |
The anthrax disease is most frequentlyinfected from |
| A. | Cattle |
| B. | Sheeps |
| C. | Rats |
| D. | Both a and b |
| Answer» E. | |
| 26. |
β-lactum ring is present in |
| A. | Erythromycin |
| B. | Penicillin |
| C. | Tetracyclins |
| D. | Chloramphenicol |
| Answer» C. Tetracyclins | |
| 27. |
Blood group antigens are |
| A. | Species specific |
| B. | Isospecific |
| C. | Autospecific |
| D. | Organ specific |
| Answer» C. Autospecific | |
| 28. |
The smallest virus is |
| A. | Parvo viru |
| B. | Rhabdo virus |
| C. | Pox virus |
| D. | Adeno virus |
| Answer» C. Pox virus | |
| 29. |
Symptoms of acute aflatoxicosis |
| A. | Osteogenic sarcoma |
| B. | Lymphatic leukemia |
| C. | Malaise & Anorexia |
| D. | Both a and b |
| Answer» E. | |
| 30. |
Important class of respiratory enzymes: |
| A. | NAD |
| B. | Cytochromes |
| C. | ATPase |
| D. | Hydrolases |
| Answer» C. ATPase | |
| 31. |
A mutation causing a substitution of oneamino acid is called |
| A. | Point mutation |
| B. | Silent mutation |
| C. | Missence mutation |
| D. | None of these |
| Answer» D. None of these | |
| 32. |
Growing trophozoites and schizonts are not seen in the peripheral blood in malaria due to |
| A. | P. falciparum |
| B. | P.vivax |
| C. | P.ovale |
| D. | P. malaria |
| Answer» B. P.vivax | |
| 33. |
Sun ray fungus is |
| A. | Actinomyces irraeli |
| B. | Chromoblastomycosis |
| C. | Streptomyces griseus |
| D. | Cryptococcosis |
| Answer» B. Chromoblastomycosis | |
| 34. |
Phenol co-efficient indicates |
| A. | Efficiency of a disinfectant |
| B. | Dilution of a disinfectant |
| C. | Purity of a disinfectant |
| D. | Quantity of a disinfectant |
| Answer» B. Dilution of a disinfectant | |
| 35. |
Virus causing Rabies is |
| A. | Orthromyxo viru |
| B. | Paramyxo virus |
| C. | Rhbdo virus |
| D. | Toga viruses |
| Answer» D. Toga viruses | |
| 36. |
Rickesia are stained with |
| A. | Giesna and Castaneda stains |
| B. | Macchiavello and Gimnezstains |
| C. | Both a and b |
| D. | Malachite green |
| Answer» D. Malachite green | |
| 37. |
Sulphur oxidizing bacteria is |
| A. | Alcaligene |
| B. | Pseudomonas |
| C. | Thiobacillus |
| D. | None of these |
| Answer» D. None of these | |
| 38. |
Pfeiffer phenomenon is related to |
| A. | Vibrio cholerae |
| B. | B.anthrax |
| C. | Rickettsial pox |
| D. | All of these |
| Answer» B. B.anthrax | |
| 39. |
The rejection of an organ transplant such as a kidney transplant, is an example of _____ Hypersensitivity. |
| A. | Immediate |
| B. | Delayed |
| C. | Allergy |
| D. | None of these |
| Answer» B. Delayed | |
| 40. |
The most common infection in AIDS is |
| A. | LGV |
| B. | CMV |
| C. | Pnemocystis carnii |
| D. | Syphilis |
| Answer» D. Syphilis | |
| 41. |
Arthus reaction was discovered by |
| A. | Marrice Arthu |
| B. | Von Perquit |
| C. | Richet |
| D. | Porter |
| Answer» B. Von Perquit | |
| 42. |
Listeriosis was ______ disease. |
| A. | Food borne |
| B. | Water borne |
| C. | Milk borne |
| D. | Air borne |
| Answer» B. Water borne | |
| 43. |
If the source of energy for bacteria is fromchemical compounds they are said to be |
| A. | Phototrophs |
| B. | Autotrophs |
| C. | Chemotrophs |
| D. | Chemolithotroph |
| Answer» D. Chemolithotroph | |
| 44. |
Eye cannot resolve any image less than |
| A. | 1ìm |
| B. | 2ìm |
| C. | 7ìm |
| D. | 5ìm |
| Answer» E. | |
| 45. |
The most important energy-yieldingreaction for an aerobic organism is |
| A. | Glycosi |
| B. | EMP |
| C. | KDPG |
| D. | Both b and c |
| Answer» E. | |
| 46. |
Which virus was first observed? |
| A. | Hepatitis Virus |
| B. | TMV |
| C. | Cauliflower mossaic virus |
| D. | None of these |
| Answer» C. Cauliflower mossaic virus | |
| 47. |
An organism that is osmophilic and has a specific requirements for sodium chloride resembles |
| A. | Halophile |
| B. | Basophile |
| C. | Barophile |
| D. | Xerophile |
| Answer» B. Basophile | |
| 48. |
Alkaliphiles grow at pH value between |
| A. | 1 to 6 |
| B. | 6 to 9 |
| C. | 1 to 11 |
| D. | 7 to 12 |
| Answer» E. | |
| 49. |
Streptococcus pyogens produces all of thefollowing lesions, except |
| A. | Impetigo contagiosa |
| B. | Erysipeals |
| C. | Boil |
| D. | Paronchia |
| Answer» E. | |
| 50. |
Examples for actinomycetes |
| A. | Streptomyce |
| B. | Spirillospora |
| C. | Frankia |
| D. | Dermatophillia |
| Answer» E. | |