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. |
All of the following statements about toxoplasmosis are true except: |
| A. | Maternal infection acquired after 6 months has high risk of transmission |
| B. | Arthalgia,sore throat and abdominal pain are the most common manifestations |
| C. | Oocyst in freshly passed cat's faeces is infective |
| D. | May spread by organ transplantation |
| Answer» C. Oocyst in freshly passed cat's faeces is infective | |
| 2. |
All are true about non typhoid salmonella except- |
| A. | can cause invasive disease in neonates |
| B. | Poultry is source |
| C. | Resistance to Fluoroquinolone has emerged |
| D. | Blood culture is more sensitive than stool culture in gastroenteritis in adults |
| Answer» E. | |
| 3. |
Positive shick's test indicates that person is |
| A. | Hypersensitive to diptheria |
| B. | Immune to diptheria |
| C. | Carrier of diptheria |
| D. | Susceptible to diptheria |
| Answer» E. | |
| 4. |
When acetate is the sole source of carbon for some microorganisms, the cycle which is used, is called |
| A. | glycolyic pathway |
| B. | pentose phosphate pathway |
| C. | oxaloacetate pathway |
| D. | glyoxylate pathway |
| Answer» E. | |
| 5. |
Treponema pallidum is stained using ? |
| A. | Albert staining |
| B. | Giemsa stain |
| C. | Fontana stain |
| D. | ZN stain |
| Answer» D. ZN stain | |
| 6. |
Toxins are implicated as the major pathogenetic mechanism in all of the following bacterial diarrheas except: |
| A. | Shigella sp. |
| B. | Vibrio cholerae |
| C. | Staphylococcus aureus |
| D. | Vibrio parahaemolyticus |
| Answer» E. | |
| 7. |
Louis Pasteur is associated with: |
| A. | Discovery of the bacillus of tuberculosis |
| B. | The cellular concept of immunity |
| C. | Introduction of anthrax vaccine |
| D. | Discovery of penicillin |
| Answer» D. Discovery of penicillin | |
| 8. |
Scrub typhus is caused by - |
| A. | Rickettsia tsutsugamushi |
| B. | Rochalimaea quintana |
| C. | Rickettsia prowazekii |
| D. | Rickettsia typhi |
| Answer» B. Rochalimaea quintana | |
| 9. |
All of the following statements about Penicillin Binding Proteins (PBP) are true, except |
| A. | PBP's act as carboxypeptidases and traspeptidases |
| B. | Alteration in PBP's is the primary bases of resistance in MRSA |
| C. | PBP's are localized on the outer face of cell wall |
| D. | PBP's are essential for cell wall synthesis |
| Answer» D. PBP's are essential for cell wall synthesis | |
| 10. |
The egg of which helminth can be concentrated in saturated salt solution - |
| A. | Taenia saginata |
| B. | Taenia solium |
| C. | Unfertilized egg of Ascaris |
| D. | Ancylostoma duodenale |
| Answer» E. | |
| 11. |
Which of the following statement regarding Enterococcus is False: |
| A. | It is a cause for peritonitis |
| B. | Common species are E.faecalis and E.faecium |
| C. | It is a cause for intra abdominal abscess |
| D. | It is universally susceptible to penicillin |
| Answer» E. | |
| 12. |
Positive ions in a sea of electrons are found in |
| A. | covalent bonds |
| B. | ionic compounds |
| C. | diatic bond |
| D. | metallic bonds |
| Answer» E. | |
| 13. |
Which dye is most suitable for fungal demonstration in biopsy - |
| A. | Mason's trichome |
| B. | P.A.S. |
| C. | Alziharian red |
| D. | Veirhoff dye |
| Answer» C. Alziharian red | |
| 14. |
Which of the following viruses has helical nucleocapsid ? |
| A. | Herpes |
| B. | Rubella |
| C. | Polio |
| D. | Measles |
| Answer» E. | |
| 15. |
In Titration the end point is indicated through |
| A. | crystallization of salt |
| B. | precipitation of salt |
| C. | a pink color |
| D. | change in the color of solution |
| Answer» E. | |
| 16. |
Acute haemorrhagic conjunctivities is caused by: |
| A. | Poliovirus |
| B. | Hepadima virus |
| C. | Entrovirus 70 |
| D. | Adenovirus |
| Answer» D. Adenovirus | |
| 17. |
Mycobacterium leprae can be grown in |
| A. | Teepol agar |
| B. | Tomato juice agar |
| C. | Foot pad of mouse |
| D. | LJ medium |
| Answer» D. LJ medium | |
| 18. |
Which of the following is a true statement regarding Enterobacteriaceae |
| A. | Motility is by polar flagellum |
| B. | Glucose is not fermented by all members of the family |
| C. | All members are oxidase positive |
| D. | Nitrate reduction negative |
| Answer» C. All members are oxidase positive | |
| 19. |
Aflatoxins are produced by: |
| A. | Aspergillus fumigatus |
| B. | Candida |
| C. | Aspergillus flavus |
| D. | Aspergillus niger |
| Answer» D. Aspergillus niger | |
| 20. |
Which of the following is microaerophilic |
| A. | Bacteroides |
| B. | Pseudomonas |
| C. | Campylobacter |
| D. | Vibrio |
| Answer» D. Vibrio | |
| 21. |
Predominant class of immunoglobulin during primary immune response is - |
| A. | IgA |
| B. | IgE |
| C. | IgM |
| D. | IgG |
| Answer» D. IgG | |
| 22. |
false about Hemophilus influenzae is- |
| A. | Protein capsule plays an important role in pathogenencity |
| B. | In needs factor X and V for growth in culture media |
| C. | Most common invasive manifestation is meningitis |
| D. | It is a rate cause of meningitis in first two months of life |
| Answer» E. | |
| 23. |
Which of the following acts as intermediate host of malaria parasite ? |
| A. | Culex |
| B. | Female anopheles |
| C. | Thromboculid mite |
| D. | Human |
| Answer» E. | |
| 24. |
The following statements are true regarding Chlamydia except - |
| A. | Erthromycin is effective for therapy of Chamydial infections |
| B. | Their cell wall lacks peptidoglycan layer |
| C. | They can grow in cell free culture media |
| D. | They are obligate intracellular bacteria |
| Answer» D. They are obligate intracellular bacteria | |
| 25. |
All occurs in botulism EXCEPT - |
| A. | Diplopia |
| B. | Diarrhoea |
| C. | Dysphagia |
| D. | Dysarthria |
| Answer» C. Dysphagia | |
| 26. |
Flame cells are found in ? |
| A. | Excretory portion of cestodes |
| B. | Excretory portion of nematodes |
| C. | Excretory portion of amoeba |
| D. | Excretory portion of protozoa |
| Answer» B. Excretory portion of nematodes | |
| 27. |
ROTA virus is diagnosed by: |
| A. | IgM specific antibody in stool |
| B. | ELISA demonstrates antibody in stool |
| C. | Immunoflorescence antigen in stool |
| D. | Culture of rota virus |
| Answer» D. Culture of rota virus | |
| 28. |
The following are gram-negative cocci EXCEPT |
| A. | Pneurnococci |
| B. | Meningococci |
| C. | Gonococci |
| D. | Veilonella |
| Answer» B. Meningococci | |
| 29. |
Which of the following parasitic infestation can lead to malabsorption syndrome? |
| A. | Hookworm infestation |
| B. | Giardiasis |
| C. | Amoebiasis |
| D. | Ascariasis |
| Answer» C. Amoebiasis | |
| 30. |
Which of the following is true about Rotavirus |
| A. | Commonly affects children |
| B. | Double-stranded |
| C. | Can be grown easily an cell culture |
| D. | Egg shell appearance under electron microscope |
| Answer» B. Double-stranded | |
| 31. |
Which bacteria acts by inhibiting protein synthesis: |
| A. | Streptococcus |
| B. | Klebscella |
| C. | Pseudomonas |
| D. | Staphylococcus |
| Answer» D. Staphylococcus | |
| 32. |
The foundation for the germ theory of disease was set down by |
| A. | Ronald Ross |
| B. | Robert Koch |
| C. | Walter Reed |
| D. | Louis Pasteur |
| Answer» E. | |
| 33. |
Mycoplasmas are different from the other prokaryotes by |
| A. | presence of murrain in cell walls |
| B. | presence of chitin in cell walls |
| C. | absence of cell wall itself |
| D. | presence of proteins in cell walls |
| Answer» D. presence of proteins in cell walls | |
| 34. |
True about corynebacterium diptheria are all except: |
| A. | Toxin production is responsible of local reaction |
| B. | Iron is required for toxin production |
| C. | Toxin production is by lysogenic conversion |
| D. | Nonsporing,noncapsular and non motile |
| Answer» B. Iron is required for toxin production | |
| 35. |
Innate immunity is stimulated by which part of bacteria ? |
| A. | Carbohdrate sequence in cell wall |
| B. | Flagella |
| C. | Bacterial cell membrane |
| D. | Nucleus |
| Answer» B. Flagella | |
| 36. |
All the following are true about Listeria except |
| A. | Gram negative bacteria |
| B. | Transmitted by contaminated milk |
| C. | Causes meningitis in neonates |
| D. | Causes abortion in pregnancy |
| Answer» B. Transmitted by contaminated milk | |
| 37. |
Group A streptococci is best diagnosed by - |
| A. | Optochin sensitivity |
| B. | Bacitracin sensitivity |
| C. | Catalase negative |
| D. | Bile solubility |
| Answer» C. Catalase negative | |
| 38. |
The range of −5 oC to −25 oC is of |
| A. | latent heat of freezing |
| B. | depression of freezing point of ice |
| C. | melting pure ice |
| D. | melting salted ice |
| Answer» E. | |
| 39. |
Intraspecies competition is the competition among - |
| A. | Species |
| B. | Individuals of a population |
| C. | Individuals of a community |
| D. | Populations and their regulatory factors |
| Answer» C. Individuals of a community | |
| 40. |
Undulant fever is caused by - |
| A. | Salmonella typhi |
| B. | Staphylococcus aureus |
| C. | Brucella melitensis |
| D. | Coxiella burnetti |
| Answer» D. Coxiella burnetti | |
| 41. |
Most common tumour caused by virus is - |
| A. | Warts |
| B. | Carcinoma cervix |
| C. | Nasopharyngeal carcinoma |
| D. | Lymphoma |
| Answer» B. Carcinoma cervix | |
| 42. |
Localized myogenic infection is caused by which bacteria ? |
| A. | Staphylococcus |
| B. | Clostridium |
| C. | Cornybacterium |
| D. | Streptococcal |
| Answer» B. Clostridium | |
| 43. |
Shick test is |
| A. | Neutralisation tests |
| B. | Delayed hypersensitivity |
| C. | Anaphylaxis |
| D. | Type II hypersensitivity reaction |
| Answer» B. Delayed hypersensitivity | |
| 44. |
An adolescent male developed vomiting and diarrhoea 1 hour after having food from a restaurant. The most likely pathogen is - |
| A. | Clostridium perfringens |
| B. | Vibrio parahaemolyticus |
| C. | Staphylococcus aureus |
| D. | Salmonella typhimurium |
| Answer» D. Salmonella typhimurium | |
| 45. |
Plaque formation in virus is done for: |
| A. | Cloning sepration of specific viruses |
| B. | Isolation and typing of viruses |
| C. | Accessing multiplication of virus |
| D. | Determining infectivity of virus |
| Answer» E. | |
| 46. |
All are true regarding H.Pylori Except - |
| A. | Less prevalent in developing countries |
| B. | Ulcer is caused by toxigenic strains |
| C. | Urea breath + ve test is a rapid method of detection |
| D. | Gram +ve organism |
| Answer» B. Ulcer is caused by toxigenic strains | |
| 47. |
Which of the following is not a cestode? |
| A. | D. latum |
| B. | T. saginata |
| C. | Schistsoma mansomia |
| D. | E. granulosus |
| Answer» D. E. granulosus | |
| 48. |
Larval form of which parasite resides in muscle - |
| A. | Taenia saginata |
| B. | Echinococcus |
| C. | Trichinella |
| D. | All of the above |
| Answer» E. | |
| 49. |
True regarding pertussis vaccine is: |
| A. | 95% of vaccinated are protected |
| B. | Erythromycin should be given to contacts |
| C. | Neuroparalytic Complication is seen in 1 in 15000 |
| D. | Leucocytosis is diagnostic |
| Answer» C. Neuroparalytic Complication is seen in 1 in 15000 | |
| 50. |
The infective form of malarial parasite in the vertebrate host is - |
| A. | Sporozoite |
| B. | Merozoite |
| C. | Schizont |
| D. | Gametocyte |
| Answer» B. Merozoite | |