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

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

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

B. Bacterial spore

C. Bacterial fimbriae

D. Bacterial Flagella

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
5721. Sterilisation control for moist heat is or The efficacy of the moist heat sterilization technique commonly used to sterlilize laboratory ware and culture media is tested by using_______________?
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A. Using chemical indicator

B. Using non-pathogenic strain of clostridium tetani

C. Using methylene blue

D. using Bacillus stearo thermo philus
5722. Leptospirosis, all are true except______________?
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A. Incubation period is 10 days

B. It is sensitive to penicillin

C. Faeces & urine of rodents is the cause

D. Onset of IgM in 2 days
5723. Drumstick appearance is seen in______________?
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A. Cl. sphenoids

B. Cl. tetanomorphum

C. Cl. tetani

D. All of the above

5724. which of the following is anaerobic_______________?
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A. Pseudomonas

B. E.coli

C. Klebsiella

D. Bacteroides
5725. Dark ground microscopy is useful to identify______________?
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A. Chlamydiae

B. Spirochaetes

C. Rickettsiae

D. Mycoplasma

5727. The commonly used fluorescent dye in the detection of tubercie bacilli________________?
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A. Auramine and Rhodamine

B. Congo red

C. Thioglavin

D. Acridine orange

5728. Immunoglobulin consists of________________?
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A. 1 heavy, 2 light chains

B. 3 light, 1 heavy chain

C. 1 light, 1 heavy chain

D. 2 light, 2 heavy chains
5730. Which of the following are non-spore forming anaerobic bacteria that asume major significance in disease processes________________?
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A. Fusobacterium nucleatum

B. Bacteroides fragilis

C. Actinomyces Israeli

D. Peptostreptococcus anaerobius

E. All of the above
5731. Multiple drug resistance of bacteria depends on which of the following_______________?
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A. Colicigenic factor (Col)

B. Fertility factor (F+)

C. All of the above

D. Resistance transfer factor (RTF)
5732. Following are the characteristics of Vincents angina EXCEPT_______________?
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A. Caused due to malnutrition

B. Ulcerative gingivostomatitis

C. A symbiotic infection

D. Caused by leptospira interrogans
5733. The diagnostic investigation for syphilis is__________________?
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A. TPI test

B. VDRL test

C. TPHA test

D. FTAB test

E. Both C & D
5734. Culture medium for corynebacterium diphtheria______________?
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A. Mc Conkey

B. Loefflers serum slope

C. Lowenstein Jensen Medium

D. Saborauds agar

5735. Which is not true about vibrio cholera_________________?
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A. Grows on simple media

B. Man is the only natural host

C. It is non-halophilic

D. Cannot survive in extracellular environment
5736. Actinomycosis is caused by______________?
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A. Acid fast, non-motile bacillus

B. Anaerobic, gram positive, non-acid fast bacteria.

C. Retrovirus

D. Fungus

5737. Common inhabitant of throat and tonsils is______________?
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A. Beta hemolytic streptococci

B. Alpha hymolytic streptococci (S. viridans)

C. Pneumococci

D. Staphylococci

5738. Commonest mycobacterial infection in tropical countries_______________?
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A. Kansasi

B. M. tuberculosis

C. M. leprae

D. M. avium intracellulare

5739. Phage conversion is required for________________?
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A. Tularemia

B. Diptheria

C. All o f the above

D. Gonorrhoea

5741. One of the following staining methods is an example of negative staining_______________?
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A. Zheil-Neilsons staining

B. Grams staining

C. India ink preparation

D. Fontanas staining

5742. Bacteria acquire characteristics by all the following except_______________?
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A. Through plasmids

B. Through bacteriophages

C. Incorporating part of host DNA

D. Through conjugation

5743. Neurotoxin of tetanus acts on______________?
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A. Brain

B. Synapse

C. Muscle

D. Spinal card
5744. The spirochete which is associated with fusospirochetosis is______________?
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A. Borrelia burgdorferi

B. Treponema pallidum

C. Treponjema pertenue

D. Borrelia vincenti
5745. Actinomycosis is a_________________?
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A. Aerobic fungal disease

B. Anaerobic bacterial disease

C. Aerobic bacterial disease

D. Anaerobic fungal disease

5746. Synthesis of antibodies in plasma cells occurs in_________________?
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A. Nucleus

B. Golgi body

C. Mitochondria

D. Endoplasmic reticulum
5748. The following are applicable to bacterial genoms except________________?
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A. It is composed of DNA

B. It doe not contain histones

C. It is circular

D. Its DNA has both introns and extrons
5749. Staphylococcal toxic shock syndrome (SSS syndrome) is due to______________?
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A. Enterotoxin D

B. Enterotoxin B

C. Enterotoxin A

D. Enterotoxin F
5750. Cough plate method is used to identify________________?
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A. Pertussis

B. M-Tuberculosis

C. Y. pestis

D. Mycoplasma