2651. Australia antigen is associated with_______?
a. Hepatitis B surface antigen in acute hepatitis ✅
b. AIDS
c. Chronic leukemia
d. Basal cell carcinoma
2652. Antibody to HSV will begin to appear_______?
a. in a week and reach a peak in 3 weeks ✅
b. only after one year
c. no antibodies are present in primary HSV
d. antibodies are present in recurrent and chronic apthous stomatitis
2653. Half-life of free HIV in plasma is_____?
a. 24 hours
b. 6 hours ✅
c. 12 hours
d. 3 months
2654. The culture media used for cultivation of HSV is______?
a. Chocolate agar
b. Robertoson’s cooked-meat broth
c. Chorio allantoic membrane ✅
d. Sabourad’s agar
2655. All of the following infections may be transmitted by dental instruments except_______?
a. HIV
b. Hepatitis C
c. Hepatitis B
d. Hepatitis E ✅
2656. HIV is transmitted by all of the following routes except_______?
a. Saliva ✅
b. Needle prick injury
c. Blood transmission
d. Sexual intercourse
2657. The mechanism by which most fungi cause disease is_____?
a. exotoxin production
b. lecithinase production
c. hypersensitivity ✅
d. Coagulase production
2658. Fungus capable of forming a fungal ball is_____?
a. Penicillium
b. Aspergillus ✅
c. Mucor
d. Rhizopus
2659. The culture media for fungus is_______?
a. Tellurite medium
b. NNN medium
c. Chocolate agar medium
d. Sabouraud’s medium ✅
2660. The medium of choice for culturing yeast from dimorphic fungi is_______?
a. Brain – heart infusion
b. Sabouraud’s
c. Sabouraud’s plus antibiotics ✅
d. Any medium incubated at 35-37°C
2661. Dematophytes are fungi infecting______?
a. Subcutaneous tissue
b. Systemic organs
c. Nails, hair, and skin ✅
d. Superficial skin and deep tissue
2662. Transmission of all of the following intestinal parasites takes place by the feco-oral route except______?
a. Giardia lambia
b. Ascaris lumbricoides
c. Strongyloides ✅
d. Entamoeba
2663. Investigation of choice for invasive amoebiasis is_______?
a. Indirect hemagglutination
b. ELISA ✅
c. Counter immune electroporesis
d. Microscopy
2664. Black water fever is caused by_____?
a. Plasmodium vivax
b. Plasmodium falciparum ✅
c. Leishmania donovani
d. Microfilaria
2665. Causative organism of Kalahazar is_____?
a. Plasmodium ovale
b. Leishmania donovani ✅
c. Entamoeba histolytica
d. Toxoplasma
2666. All the following amoeba live in the large intestine except_______?
a. coli
b. nana
c. gingivalis ✅
d. histolytica
2667. All are true about Entamoeba histolytica except______?
a. Cysts are 8 nucleated ✅
b. Cysts are 4 nucleated
c. Trophozoites colonize in the colon
d. The chromatid bodies are stained by iodides
2668. All are seen in a cyst of E. histolytica except_______?
a. Glycogen mass
b. Chromatid bars
c. Eccentric nucleus
d. Refractile nucleus ✅
2669. Sporozoites of Plasmodium falciparum are shaped_______?
a. Dot
b. Comma
c. Banana
d. Sickle ✅
2670. True about Toxoplasma gondii is, it is carried by______?
a. cats ✅
b. Dogs
c. Rats
d. Cow
2671. Which worm is longest_____?
a. T. Solium
b. T. Saginata ✅
c. Hookworm
d. A. Lumbricoides
2672. Thread worm is_____?
a. Enterobius ✅
b. Ancylostoma
c. Ascaris
d. Necator
2673. Highest incidence of anemia in the tropics is due to_____?
a. Hookworm ✅
b. Thread worm
c. Ascaris
d. Guinea worm
2674. Medusa lock appearance in X-ray is seen in_____?
a. Ascariasis ✅
b. Tapeworm
c. Hookworm
d. Ascariasis and tapeworm
2675. Culture media of Candida is_______?
a. Methylene blue dextrose agar
b. Sabouraud’s medium ✅
c. Pingolevin
d. All of the above
2676. The following is not true of Candida albicans_____?
a. Yeast-like fungus
b. Forms Chlamydospores
c. Blastomeres seen in isolates ✅
d. Seen in immunocompromised and causes meningitis in them
2677. Opportunistic infection is caused by_______?
a. Penicillium
b. Mucor
c. Aspergillus
d. All of the above ✅
2678. The inflammatory type of tinea capitis with superadded secondary bacterial infection leading to a painful, circumscribed, boggy, and indurated lesion, is called_______?
a. Kerion ✅
b. Alopecia areata
c. Pilomatrixoma
d. Tinea incognito
2679. Reynolds Braude phenomenon is shown by_____?
a. Candida albicans ✅
b. Mucor
c. Cryptococcus
d. Aspergillus
2680. Candidal hyphae can be stained using______?
a. Van Gieson’s stain
b. Periodic acid-Schiff stain ✅
c. Masson Trichrome stain
d. Toluidine blue stain
2681. Following are the characteristics of Cryptococcus neoformans EXCEPT_______?
a. Noncapsulated fungus infecting man ✅
b. Causes meningitis
c. Melanin production related to virulence
d. Basidiomycetes yeast
2682. Normal ratio of CD4 (T4) : CD8 (T8) is______?
a. 2:1 ✅
b. 1:2
c. 3:1
d. 1:3
2683. Lesions caused by Entamoeba histolytica predominantly involve______?
a. Caecum and large intestine ✅
b. Duodenum
c. Stomach
d. Jejunum and Ileum
2684. Which of the following parasite causes autoinfection______?
a. Giardia lambella
b. Isopora belli
c. Balantidium coli
d. Taenia solium ✅
2685. Probiotic organism used______?
a. E. coli
b. Bifidobacteria ✅
c. Staphylococcus
d. Salmonella
2686. Sleeping sickness is caused by______?
a. House fly
b. Sand fly
c. Tick
d. Reduvid bug ✅
2687. Injection abscesses due to use of contaminated vaccines occur in infections caused by______?
a. M. Kansasii
b. M. ulcerans
c. M. chelonae ✅
d. M. smegmatis
2688. Donovanosis, true is______?
a. Caused by Calymmatobacterium granulomatis ✅
b. Lymphadenopathy is remarkable & diagnostic
c. Penicillin is drug of choice
d. Characterized by painful genital ulcers
2689. CD4 count in a normal healthy adult is______?
a. 500
b. 200
c. 1000 ✅
d. 300
2690. A cerebrospinal fluid of a 2-year-old child has been sent to the laboratory to detect the presence of capsulated yeast. The staining technique most commonly employed for the purpose is_____?
a. India ink preparation ✅
b. Methanamine silver stain
c. Ziehl-Neelsen stain
d. Pyte-ferraco stain
2691. Most fungi of medical importance belong to_____?
a. Zygomycetes
b. Ascomycetes
c. Basidiomycetes
d. Deuteromycetes ✅
2692. A mother donated a kidney to her daughter having chronic renal failure, which kind of graft it represents_______?
a. Allo ✅
b. ISO
c. Xeno
d. Auto
2693. Which of the following is most potent antigen for stimulating both humoral and cell-mediated immunity?
a. Adjuvant
b. Proteins ✅
c. Polysaccharides
d. Lipids
2694. In falciparum malaria, causes of anemia are due to all except______?
a. Hemolysis
b. Malabsorption ✅
c. Spleen sequestration
d. Bone marrow depression
2695. Which of the following is not transmitted by lice?
a. Trench fever
b. Relapsing fever
c. Q fever ✅
d. Epidemic typhus
2696. Which stage of Plasmodium vivax is infective to the mosquito_______?
a. Sporozoite
b. Gametocyte ✅
c. Merozoite
d. Zygote
2697. Schuffner’s dots are seen in infection due to_____?
a. Plasmodium falciparum
b. Plasmodium vivax ✅
c. Plasmodium malariae
d. Plasmodium ovale
2698. Man is the only reservoir for_______?
a. Salmonella
b. Campylobacter jejuni
c. Entamoeba histolytica ✅
d. Y. enterocolitica
2699. A 30-year-old patient developed high fever of sudden onset. Peripheral blood smear showed crescent-shaped gametocytes. Malaria pigment was dark brown in color. Which of the following malarial parasites is the causative agent?
a. Plasmodium vivax
b. Plasmodium malaria
c. Plasmodium falciparum ✅
d. Plasmodium ovale
2700. Commonest site of extraintestinal amoebiasis is________?
