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				This section includes 859 Mcqs, each offering curated multiple-choice questions to sharpen your Cloud Computing knowledge and support exam preparation. Choose a topic below to get started.
| 51. | 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 | |
| 52. | 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. | |
| 53. | 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. | |
| 54. | 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. | |
| 55. | Treponema pallidum is stained using ? | 
| A. | Albert staining | 
| B. | Giemsa stain | 
| C. | Fontana stain | 
| D. | ZN stain | 
| Answer» D. ZN stain | |
| 56. | 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. | |
| 57. | 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 | |
| 58. | Scrub typhus is caused by - | 
| A. | Rickettsia tsutsugamushi | 
| B. | Rochalimaea quintana | 
| C. | Rickettsia prowazekii | 
| D. | Rickettsia typhi | 
| Answer» B. Rochalimaea quintana | |
| 59. | 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 | |
| 60. | 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. | |
| 61. | 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. | |
| 62. | Positive ions in a sea of electrons are found in | 
| A. | covalent bonds | 
| B. | ionic compounds | 
| C. | diatic bond | 
| D. | metallic bonds | 
| Answer» E. | |
| 63. | 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 | |
| 64. | Which of the following viruses has helical nucleocapsid ? | 
| A. | Herpes | 
| B. | Rubella | 
| C. | Polio | 
| D. | Measles | 
| Answer» E. | |
| 65. | 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. | |
| 66. | Acute haemorrhagic conjunctivities is caused by: | 
| A. | Poliovirus | 
| B. | Hepadima virus | 
| C. | Entrovirus 70 | 
| D. | Adenovirus | 
| Answer» D. Adenovirus | |
| 67. | 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 | |
| 68. | 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 | |
| 69. | Aflatoxins are produced by: | 
| A. | Aspergillus fumigatus | 
| B. | Candida | 
| C. | Aspergillus flavus | 
| D. | Aspergillus niger | 
| Answer» D. Aspergillus niger | |
| 70. | Which of the following is microaerophilic | 
| A. | Bacteroides | 
| B. | Pseudomonas | 
| C. | Campylobacter | 
| D. | Vibrio | 
| Answer» D. Vibrio | |
| 71. | Predominant class of immunoglobulin during primary immune response is - | 
| A. | IgA | 
| B. | IgE | 
| C. | IgM | 
| D. | IgG | 
| Answer» D. IgG | |
| 72. | 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. | |
| 73. | Which of the following acts as intermediate host of malaria parasite ? | 
| A. | Culex | 
| B. | Female anopheles | 
| C. | Thromboculid mite | 
| D. | Human | 
| Answer» E. | |
| 74. | 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 | |
| 75. | All occurs in botulism EXCEPT - | 
| A. | Diplopia | 
| B. | Diarrhoea | 
| C. | Dysphagia | 
| D. | Dysarthria | 
| Answer» C. Dysphagia | |
| 76. | 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 | |
| 77. | 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 | |
| 78. | The following are gram-negative cocci EXCEPT | 
| A. | Pneurnococci | 
| B. | Meningococci | 
| C. | Gonococci | 
| D. | Veilonella | 
| Answer» B. Meningococci | |
| 79. | Which of the following parasitic infestation can lead to malabsorption syndrome? | 
| A. | Hookworm infestation | 
| B. | Giardiasis | 
| C. | Amoebiasis | 
| D. | Ascariasis | 
| Answer» C. Amoebiasis | |
| 80. | 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 | |
| 81. | Which bacteria acts by inhibiting protein synthesis: | 
| A. | Streptococcus | 
| B. | Klebscella | 
| C. | Pseudomonas | 
| D. | Staphylococcus | 
| Answer» D. Staphylococcus | |
| 82. | 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. | |
| 83. | 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 | |
| 84. | 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 | |
| 85. | 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 | |
| 86. | 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 | |
| 87. | Group A streptococci is best diagnosed by - | 
| A. | Optochin sensitivity | 
| B. | Bacitracin sensitivity | 
| C. | Catalase negative | 
| D. | Bile solubility | 
| Answer» C. Catalase negative | |
| 88. | 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. | |
| 89. | 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 | |
| 90. | Undulant fever is caused by - | 
| A. | Salmonella typhi | 
| B. | Staphylococcus aureus | 
| C. | Brucella melitensis | 
| D. | Coxiella burnetti | 
| Answer» D. Coxiella burnetti | |
| 91. | Most common tumour caused by virus is - | 
| A. | Warts | 
| B. | Carcinoma cervix | 
| C. | Nasopharyngeal carcinoma | 
| D. | Lymphoma | 
| Answer» B. Carcinoma cervix | |
| 92. | Localized myogenic infection is caused by which bacteria ? | 
| A. | Staphylococcus | 
| B. | Clostridium | 
| C. | Cornybacterium | 
| D. | Streptococcal | 
| Answer» B. Clostridium | |
| 93. | Shick test is | 
| A. | Neutralisation tests | 
| B. | Delayed hypersensitivity | 
| C. | Anaphylaxis | 
| D. | Type II hypersensitivity reaction | 
| Answer» B. Delayed hypersensitivity | |
| 94. | 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 | |
| 95. | 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. | |
| 96. | 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 | |
| 97. | Which of the following is not a cestode? | 
| A. | D. latum | 
| B. | T. saginata | 
| C. | Schistsoma mansomia | 
| D. | E. granulosus | 
| Answer» D. E. granulosus | |
| 98. | Larval form of which parasite resides in muscle - | 
| A. | Taenia saginata | 
| B. | Echinococcus | 
| C. | Trichinella | 
| D. | All of the above | 
| Answer» E. | |
| 99. | 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 | |
| 100. | The infective form of malarial parasite in the vertebrate host is - | 
| A. | Sporozoite | 
| B. | Merozoite | 
| C. | Schizont | 
| D. | Gametocyte | 
| Answer» B. Merozoite | |