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. |
Which of the following organisms is most commonly associated with AIDS pneumonia? |
| A. | Klebsiella |
| B. | Str. pneumonia |
| C. | Mycoplasma |
| D. | Mycobacterium tuberculosis |
| Answer» E. | |
| 2. |
The ce l ls hav ing F p lasm id in thechromosomes were termed as |
| A. | Hfr |
| B. | F– |
| C. | Hbr |
| D. | C+ |
| Answer» B. F– | |
| 3. |
AIDS disease is caused by a virus whichbelongs to |
| A. | Retro virus group |
| B. | Rhabdo virus group |
| C. | Hepatitis virus group |
| D. | Adeno virus group |
| Answer» B. Rhabdo virus group | |
| 4. |
Syphillis is caused by |
| A. | Staphylococcus aureuss |
| B. | Yersinia psdtis |
| C. | Treponema pallidum |
| D. | Streptococcus syphilitis |
| Answer» D. Streptococcus syphilitis | |
| 5. |
The function of (THFA) Tetrahydrofolic acidcoenzyme include |
| A. | Amino acid synthesis |
| B. | Thymidine synthesis |
| C. | Protein synthesis |
| D. | Both a and b |
| Answer» E. | |
| 6. |
Which Rickettsia can be grown on blood agar media? |
| A. | Lactobacilli |
| B. | Streptobacillus |
| C. | Bacillus anthrax |
| D. | Vibrio cholerae |
| Answer» B. Streptobacillus | |
| 7. |
Food poisoning is caused by |
| A. | Clostridum tetani |
| B. | Clostridum Welchi |
| C. | Diptheria |
| D. | Clostridium botulinum |
| Answer» E. | |
| 8. |
Pasteur effect is due to |
| A. | Change from aerobic to anaerobic |
| B. | Providing oxygen to anaerobically respiring structures |
| C. | Rapid utilization of ATP |
| D. | Nonsynthesis of ATP |
| Answer» C. Rapid utilization of ATP | |
| 9. |
Dose of BCG vaccine is |
| A. | 0.2–0.5 ml |
| B. | 0.1 ml |
| C. | 0.05 ml |
| D. | 0.2 to 0.3 ml |
| Answer» C. 0.05 ml | |
| 10. |
â-lactum antibiotics are |
| A. | Penicillin |
| B. | Cephalosporin |
| C. | Both a & b |
| D. | None of these |
| Answer» D. None of these | |
| 11. |
Bacteria multiply by |
| A. | Spore formation |
| B. | Simple binary fission |
| C. | Conjugation |
| D. | Gametes |
| Answer» C. Conjugation | |
| 12. |
In the medium other than nutrients, if any substance is used in excess, that medium is |
| A. | Enriched medium |
| B. | Special medium |
| C. | Enrichment medium |
| D. | None of these |
| Answer» B. Special medium | |
| 13. |
Mycoplasmas are bacterial cells that |
| A. | Fail to reproduce on artificial meida |
| B. | Have a rigid cell wall |
| C. | Are resistant to penicillin |
| D. | Stain well with Gram’s stain |
| Answer» D. Stain well with Gram’s stain | |
| 14. |
DPT is given for the prevention of |
| A. | Diphtheria, Tetanus |
| B. | Diphtheria, Pertusis |
| C. | Diphtheria, Tetanus & pertusis |
| D. | None of these |
| Answer» D. None of these | |
| 15. |
During conjunction the genetic materialwill be transferred through |
| A. | Cell wall |
| B. | Medium |
| C. | Pili |
| D. | Capsule |
| Answer» D. Capsule | |
| 16. |
Bacteriophage capable of only lyticgrowth is called |
| A. | Temperate |
| B. | Avirulent |
| C. | Virulent |
| D. | None of these |
| Answer» B. Avirulent | |
| 17. |
Reagenic type antibody is |
| A. | IgG |
| B. | IgA |
| C. | IgM |
| D. | IgE |
| Answer» E. | |
| 18. |
The purification and recovery of theproduction after fermentation is called |
| A. | Upstream process |
| B. | Downstream process |
| C. | Surface fermentation |
| D. | None of these |
| Answer» C. Surface fermentation | |
| 19. |
Which type of spores are produced sexually? |
| A. | Conidia |
| B. | Sporangiospores |
| C. | Ascospores |
| D. | None of these |
| Answer» D. None of these | |
| 20. |
Erythromycin is obtained from |
| A. | S.griseu |
| B. | S.rimosus |
| C. | S.scabies |
| D. | S.erythraeus |
| Answer» E. | |
| 21. |
Accridine dyes are more effective against |
| A. | Gram positive |
| B. | Gram negative |
| C. | Mycoplasmas |
| D. | Rickttsiae |
| Answer» B. Gram negative | |
| 22. |
The site of energy production in a cell |
| A. | Micro body |
| B. | Chromosome |
| C. | Ribosome |
| D. | Mitochondria |
| Answer» E. | |
| 23. |
Ergot disease is caused by |
| A. | Puccinia |
| B. | Rhizopus |
| C. | Claveceps |
| D. | Penicillium |
| Answer» D. Penicillium | |
| 24. |
Wet mount slide preparations are usedin microbiology as they allow to see |
| A. | Size and shape of individual organisms |
| B. | Characteristic arrangement or grouping of cells |
| C. | Motility of the organism |
| D. | All of these |
| Answer» E. | |
| 25. |
Phagocytes are |
| A. | Monocyte |
| B. | Macrophages |
| C. | Basophils |
| D. | All of these |
| Answer» E. | |
| 26. |
The primary cells involved in immuneresponse are |
| A. | NK-cell |
| B. | K-cells |
| C. | Lymphocytes |
| D. | None of these |
| Answer» D. None of these | |
| 27. |
How would you distinguish pseudomonasspecies from E-cloi? |
| A. | Gram staining |
| B. | Morphology |
| C. | Glucose fermentation Vs Respiration |
| D. | All of the above |
| Answer» D. All of the above | |
| 28. |
Ciprofloxacin acts by inhibiting |
| A. | Cellwall synthesis |
| B. | RNA synthesis |
| C. | Folate synthesis |
| D. | DNA gyrase |
| Answer» E. | |
| 29. |
Streptococcus pyogens produce infection – |
| A. | Streptococcal sore throat |
| B. | Acute glomerulo nephritis |
| C. | Rheumatic fever |
| D. | None of these |
| Answer» B. Acute glomerulo nephritis | |
| 30. |
Humans normally have 46 chromosomes in skin cells. How many autosomes would be expected in a kidney cell? |
| A. | 46 |
| B. | 23 |
| C. | 47 |
| D. | 44 |
| Answer» E. | |
| 31. |
Rickettsiae stained by this techniqueresponds as |
| A. | Gram positive |
| B. | Gram negative |
| C. | Between positive and negative |
| D. | None of these |
| Answer» C. Between positive and negative | |
| 32. |
Kuru disease in Humans is caused by |
| A. | Bacteria |
| B. | Viroides |
| C. | Prions |
| D. | Mycoplasma |
| Answer» D. Mycoplasma | |
| 33. |
Infermentor the top portion left withoutbroth is called |
| A. | Shaft |
| B. | Head space |
| C. | Impeller |
| D. | Sparger |
| Answer» C. Impeller | |
| 34. |
For thorough mixing of medium of medium and inoculum the part of fermentor useful is |
| A. | Shaft |
| B. | Headspace |
| C. | Impeller |
| D. | Sparger |
| Answer» D. Sparger | |
| 35. |
Example for live vaccine is |
| A. | Rubella & BCG |
| B. | Polio & TAB |
| C. | Diphtheria & Tetanus |
| D. | Hepatitis A & Rabies |
| Answer» B. Polio & TAB | |
| 36. |
Screening test for AIDS is |
| A. | Western blot test |
| B. | ELISA test |
| C. | Both a and b |
| D. | VDRL test |
| Answer» C. Both a and b | |
| 37. |
Koplic spots observed in the mucous membrane is characteristic feature of the disease |
| A. | Rubella |
| B. | Measles |
| C. | Mumps |
| D. | Influenza |
| Answer» D. Influenza | |
| 38. |
Basic principle in industrial microbiologyis |
| A. | Suitable growth conditions |
| B. | Fermentation |
| C. | Providing aseptic conditions |
| D. | All of these |
| Answer» C. Providing aseptic conditions | |
| 39. |
Hybridoma technique was first discoveredby. |
| A. | Kohler and Milstein |
| B. | Robert Koch |
| C. | ‘D’ Herelle |
| D. | Land Steiner |
| Answer» B. Robert Koch | |
| 40. |
Citrus canker is caused by |
| A. | Phytomona |
| B. | Salmonella |
| C. | Lactobacillus |
| D. | Hay bacillus |
| Answer» B. Salmonella | |
| 41. |
Genetic information transfer DNA to RNAis called – |
| A. | Transcriptase |
| B. | Transduction |
| C. | Transformation |
| D. | Recombination |
| Answer» B. Transduction | |
| 42. |
Aspergillus fumigatus can infect |
| A. | A. niger |
| B. | A. fumigatus |
| C. | A. flavus |
| D. | A. oryzae |
| Answer» E. | |
| 43. |
L-Lysine is produced from |
| A. | Corynebacterium glutamicum |
| B. | Clostridium botulinum |
| C. | Mycobacterium sps |
| D. | Pseudomonas |
| Answer» B. Clostridium botulinum | |
| 44. |
The test used for detection of typhoid fever |
| A. | WIDAL test |
| B. | ELISA |
| C. | Rosewaller test |
| D. | Westernblotting |
| Answer» B. ELISA | |
| 45. |
In bacteria pigment bearing structures are |
| A. | Chloroplast |
| B. | Protoplast |
| C. | Sphaeroplast |
| D. | Chromatophores |
| Answer» E. | |
| 46. |
Sporadic summer diarrhea may becaused by |
| A. | E.coli |
| B. | Enterobacter |
| C. | Hafnia |
| D. | Serratia |
| Answer» B. Enterobacter | |
| 47. |
Cytoplasmic streaming is present in |
| A. | Prokaryote |
| B. | Animals |
| C. | Eukaryotes |
| D. | Both a and b |
| Answer» D. Both a and b | |
| 48. |
Specific test for syphilis is |
| A. | VDRL test |
| B. | ELISA |
| C. | FTA |
| D. | None of these |
| Answer» B. ELISA | |
| 49. |
The method of DNA replication proposedby Watson and Crick is |
| A. | Semi conservative |
| B. | Conservative |
| C. | Dispersive |
| D. | Rolling loop |
| Answer» B. Conservative | |
| 50. |
The prote inaceous compound are converted to ammonia by |
| A. | Putrification bacteria |
| B. | Ammonifiaction bacteria |
| C. | Nitrification bacteria |
| D. | Denitrifying bacteria |
| Answer» C. Nitrification bacteria | |