medical MCQs – Page 286

Practise multiple-choice questions from medical for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

medical Mcqs

1. oral anatomy 2. microbiology 3. oral pathology and medicine 4. physiology 5. biochemistry 6. general anatomy 7. dental materials 8. pharmacology 9. pathology 10. oral histology

5701. Salmonella typhi can be isolated at different times from______________?
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A. Urine

B. Blood

C. All of the above

D. Feaces

5702. Type IV hypersensitivity reaction is mediated by which of the following________________?
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A. B-cells

B. Active T cells

C. NK cells

D. Plasma cells

5703. A child presents with infective skin lesions of the leg. Culture was done which showed gram positive cocci in chains and haemolytic colonies. Which of the following tests will best identify the organism ?
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A. Bile solubility

B. Optochin sensitivity

C. Bacitracin sensitivity

D. Cataslase positive

5704. CD4 cells recognize the antigens in association with_____________?
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A. B-cell receptor

B. MHC I

C. MHC III

D. MHC II

5705. The most primitive mode of gene transfer occurs by____________?
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A. Transduction

B. Cell fusion

C. Translation

D. Conjugation

5706. The facultative anaerobic bacteria are those who are_______________?
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A. Able to grow in the presence of absence of oxygen

B. Unable to grow in the absence of oxygen

C. Unable to grow in the presence of oxygen

D. Able to grow in the presence of carbon dioxide

5707. Which of the following is a live vaccine_____________?
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A. Hepatitis

B. 17 D

C. Salk

D. HDCV

5708. Graft versus host reaction is caused by_________________?
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A. T-lymphocytes

B. Monocytes

C. B-Lymphocytes

D. Leukocytes

5709. Each of the following viruses possesses an outer lipoprotein envelope except_____________?
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A. Influenza Virus

B. Papilloma Virus

C. Varicella Zoster Virus

D. Human immunodeficiency virus

5710. Salivary peroxidise system is known to be effective agianst________________?
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A. Lactobacillus acidophilus

B. Actinomyces viscosus

C. Streptococcus mutans

D. Veilonella parvula

5711. The most common pathogens responsible for nosocomial pneumonias in the ICU are______________?
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A. Mycoplasma

B. Virus infections

C. Gram negative organisms

D. Gram positive organisms

5712. Pseudomonas aeruginosa_________________?
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A. Produces heat stable enterotoxin

B. Causes Shangai fever

C. Cannot be destroyed at 55 degree at 1 hr.

D. Does not produce any pigment

5713. Culture medium used for Bordatella pertussis is_________________?
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A. Wilson Blair medium

B. Bordet Gengou medium

C. Robertson cooked meat medium

D. Bile broth

5714. Pathogenesis of diphtheria is attributed to__________________?
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A. Invasion

B. Capsule

C. Exotoxin

D. Endotoxin

5715. Negative staining is used to demonstrate________________?
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A. Bacterial capsule

B. Bacterial spore

C. Bacterial fimbriae

D. Bacterial Flagella

5716. Secretory Ig is_______________?
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A. IgE

B. IgD

C. IgM

D. IgA

5717. Granules in the corynebacterium diphtheria are called by following names, except______________?
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A. Voluntin granules

B. Refractile granules

C. Babes Ernst granules

D. Metachromatic granules

5718. Hospital dressing is best disposed by_____________?
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A. Burying

B. Dumping

C. Autoclaving

D. Incineration

5719. Pasteur developed the vaccine for_______________?
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A. Rabies

B. All of the above

C. Anthrax

D. Cholera

5720. About N. gonorrhoea, all are true except__________________?
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A. Found exclusively in human beings.

B. Most common cause of urethritis is male

C. Wide spread axoregnic stains cause disseminated gonococcal infection

D. All stains are highly susceptible to penicillin

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