Medical MCQs – Updated Virology ( Microbiology ) MCQs
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Latest Medical MCQs
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Latest Virology ( Microbiology ) Mcqs
The most occurred mcqs of Virology ( Microbiology ) in past papers. Past papers of Virology ( Microbiology ) Mcqs. Past papers of Virology ( Microbiology ) Mcqs . Mcqs are the necessary part of any competitive / job related exams. The Mcqs having specific numbers in any written test. It is therefore everyone have to learn / remember the related Virology ( Microbiology ) Mcqs. The Important series of Virology ( Microbiology ) Mcqs are given below:
A rise in the anti-HBc immunoglobulin in a patient indicates________________?
A. Acute infection
B. Prodromal phase
C. Carrier state
D. Convalescence
HIV infection is known to be transmitted during all of the following EXCEPT______________?
A. Child birth
B. Breast feeding
C. Heterosexual intercourse
D. Kissing
Cytopathic effect is shown by_____________?
A. Virus
B. Spirochete
C. Bacteria
D. Anaerobe
Which of the following would you consider to be general properties of viruses______________?
A. Contain equal proportions of protein, lipo polysaccharide and nucleic acids
B. Fall in to the general size range of 200-3000 angstrom unit
C. New virus particle arises directly (by division) from preexisting viruses
D. Contain DNA but no RNA
Most common opportunistic infection in AIDS is_____________?
A. Tuberculosis
B. Cryptococcosis
C. Candidiasis
D. Aspergilosis
Viruses can be cultured in all except_______________?
A. Guinea pigs
B. Blood agar
C. Chick embryo
D. Cell culture
Following hepatitis B infection through blood transfusion disease manifests in_____________?
A. 1 week
B. 3 months
C. 6 week
D. 6 months
The Window period in HIV infection means______________?
A. The time lapse between the infection and detection of viral antibodies
B. The time lapse between obtaining the sample and detection of virus in the lab
C. The time lapse between the infection and development of AIDS
D. None of the above
Human immunodeficiency virus (HIV) affets_______________?
A. Fibroblasts
B. Red blood cells
C. Helper T lymphocytes (CD4)
D. Mast cells
The classic opportunistic infection in acquired immune deficiency syndrome is_____________?
A. Tuberculosis
B. Apthous stomatitis
C. Pneumocystis carinii pneumonia
D. Herpetic gingivostomatitis
Influenza is caused by_____________?
A. Paramyxo virus, which is a RNA virus
B. Orthomyxo virus, which is a DNA virus
C. Paramyxo virus, which is a DNA virus
D. Orthomyxo virus, which is a RNA virus
Human immune deficiency virus is ________________ virus?
A. Rhabdo
B. Retro
C. Rheo
D. Flavi
Both intranuclear and intracytoplasmic inclusions are present in which of the following viruses_____________?
A. Hepatitis B virus
B. Measles virus
C. Pox virus
D. HIV
In which of the following immunization is given after infection is started________________?
A. Rabies
B. Influenza
C. Poliomyelitis
D. Herpes
Incubation pariod of herpes zoster is________________?
A. 7-14 days
B. 1-2 years
C. 1 months
D. 3-6 months
True about prions________________?
A. Composed largely proteins without any nucleic acid
B. Viruses which are genetically deficient
C. Phase in which virus cannot be demonstrated in host cell
D. Viral components may be synthesized but maturation & assembling is defective
Pigs are important source of_____________?
A. Japanese encephalitis
B. Yellow fever
C. Kuru
D. Rabies
Herpes virus_____________?
A. Acquires its envelope from nuclear membrane
B. Acquires its envelope from cytoplasmi membrane
C. Acquires its envelope from nucleolar membrane
D. None of the above
The presence of Which of the following factors in viruses makes protective vaccines a possibility ?
A. Polysaccharide
B. Protein coat
C. Enzymes
D. Lipids
Certain viruses have been isolated in crytalline form and have been found to be_____________?
A. Phospholipids
B. Nucleotides
C. Scleroproteins
D. Nucleoproteins
The HIV virus can be destroyed invitro by which of the following_____________?
A. Ethanol
B. Boiling
C. Cidex
D. All of the above
Portal of entry of poliovirus in mainly_______________?
A. Gastrointestinal tract
B. Lung
C. Nasal mucosa
D. Skin
Presence of HBe Ag in patients with hepatitis indicates_____________?
A. Late convalescence
B. Simple carriers
C. High infectivity
D. Carrier status
Which does not have a viral etiology______________?
A. Nasopharyngeal carcinoma
B. Hepatoma
C. Carcinoma Cervix
D. Lymphoma
Viron is defined as______________?
A. Extracellular infectious virus particle
B. A smallest particle similar to virus
C. Smallest virus
D. None of the above
One virus particle prevents multiplication of 2nd virus. This phenomena is____________?
A. Viral interference
B. Supervision
C. Mutation
D. Permutation
The only virus, which has double stranded RNA, is______________?
A. Calci virus
B. Reo virus
C. Bunya virus
D. Rhabdo virus
Which of the following correctly indicates the infectivity of hepatitis virus in human ?
A. Anti-HBC
B. HBeAg
C. HBCAg
D. Anti-HBS
Which of the following represents the serologic evidence of recent Hepatitis B virus infection during window period ?
A. Anti HBs
B. IgM anti – HBc
C. HBs Ag
D. None of the above
For the treatment of case of class III dog bite, all of the following are correct except_____________?
A. Give ARV
B. Give inmunoglobulins for passive immunity
C. Immediately stitch wound under antibiotic coverage
D. Immediately wash wound with soap and water
Which of the following is a RNA virus ?
A. Measles virus
B. Papavo virus
C. Herpes Virus
D. Adeno virus
Following is a retrovirus_____________?
A. Immunodeficiency virus
B. Polio virus
C. Influenza
D. Hepatitis virus
General Microbiology MCQs ( Microbiology )
Type of Human papilloma virus associated with carcinoma cervix_____________?
A. 6,8,11
B. 16,18,31
C. Type 6,12,18
D. 3,10,19
The viral action is differentiated from bacterial action by_________________?
A. Interferon production
B. Lymphocytes production
C. Toxin production
D. Neutrophils production
What is the sequence which a retro virus follows on entering a host cell ?
A. RNA -DNA-RNA
B. DNA-RNA
C. RNA-DNA
D. DNA-RNA-DNA
Which of the following viruses appears to be involved in the pathogenesis of Kaposi’s sarcoma_____________?
A. Human Herpes Virus 1
B. Human Herpes Virus 3
C. Human Herpes Virus 8
D. Human Herpes Virus 4
Seroconversion in HIV infection takes place in______________?
A. 9 weeks
B. 4 weeks
C. 2 weeks
D. 12 weeks
Babu, a 28 year old male comes with compaint of exposure 3 wks back, having cervical Lymphadenopathy, Hepatosplenomegaly. Diagnosis of HIV is done by____________?
A. Western blot
B. ELISA
C. P24 antigen
D. Lymph node biopsy
Anti HBsAB indicates______________?
A. Acute infection
B. Resistance to hepatitis B
C. Good prognosis
D. Hepatocellular carcinoma
Presence of HBe Ag in Patients with hepatitis indicates_______________?
A. Late convalescence
B. Simple carriers
C. High infectivity
D. Carrier status
Which of the following does not go into chronic hepatitis stage ?
A. HCV
B. HBV
C. HDV
D. HEV
Which of the following belongs to cell fraction derived vaccine______________?
A. Mumps
B. Measles
C. Rubella
D. Hepatitis B
Dengue virus belongs to______________?
A. Flavi virus
B. Reoviridae
C. Togaviridae
D. Rhabdoviridae
Which of the following statement about P24 antigen of HIV is Not True ?
A. Virus load parallel P24 titre
B. Free P24 antigen disappears after the appearance of IgM response to it:
C. It can be detected during the window period
D. It remains during asymptomatic phase
Which of the following viruses are most likely to cross placenta and cause foetal defect ?
A. Mumps
B. Herpes Simplex
C. Rubella
D. Papilloma
Which of the following viruses produces both intranuclear and intracytoplasmic inclusion bodies_____________?
A. Rabies
B. Chicken pox
C. Small pox
D. Measles
Which of the following exposure carries the maximum risk of transmission of HIV____________?
A. Blood transfusion
B. Needle prick
C. Sexual intercourse
D. Transplacental
Characteristic feature of retrovirus is_____________?
A. DNA polymerase
B. Reverse transcriptase
C. Ribonuclease
D. Restriction endonuclease
Dengue Hemorrhagic fever is caused by_____________?
A. Virus
B. Parasite
C. Bacteria
D. Bacteria superadded on virus
Bacteriology MCQs ( Microbiology )
Interferon interferes with replication of virus at the time of_____________?
A. Protein synthesis
B. When virus enters the cell
C. DNA/RNA replication
D. Uncoating of the virus proteins capsule
Which of the following microbial cell is most resistant to antiseptics & disinfectants ?
A. Spore
B. Mycobacteria
C. Prions
D. Coccidia
Which of the following viruses does not infect salivary glands ?
A. Hepatitis C
B. Echo virus
C. HIV
D. Orthomyxovirus
Which of the following lesions is NOT an infection from human papilloma virus ?
A. Focal epithelial hyperplasia
B. Verruca vulgaris
C. Condyloma acuminatum
D. Keratoacanthoma
Prions true is____________?
A. Readily inactivated by autoclave at 121 C
B. Sensitive to most chemical sterilization
C. Evokes strong immunogenic reaction
D. Contains DNA/ RNA
A young pregnant woman presents with fulminant hepatic failure. The most likely aetiological agent is_____________?
A. Hepatitis C virus
B. Hepatitis B virus
C. Hepatitis E virus
D. Hepatitis A virus
Salivary protein, which prevents transmission of human immunodeficiency virus via saliva, is____________?
A. Secretory IgA
B. Sialoperoxidase
C. Salivary leukocyte proteinase inhibitor
D. Histidine rich proteins
A dentist suffred from Hepatitis B infection 3 months back. His laboratory tests are normal but he is not allowed by the medical board to do surgical practice. He is_____________?
A. Healthy carrier
B. Inactive carrier
C. Convalscent carrier
D. Paradoxical carrier
Virus is cultured in_______________?
A. Rogosa medium
B. Saubourd’s agar
C. Nonembryonated egg
D. Embryonated egg
Kaposi’s sarcoma (KS) usually occurs when CD4 Lymphocyte counts are_____________?
A. Between 1000-2000
B. Above 600
C. Below 200
D. Above 2000
Mark true in following ?
A. Hanta virus pulmonary syndrome is caused by inhalation of rodent urine and faces
B. Lyssa virus is transmitted by ticks
C. Kyanasur forest disease is caused by bite of wild animal
D. None of the above
The world german measles is applied for_____________?
A. Rubella
B. Herpes simplex
C. Rubeola
D. Herpetic ginglvostomatitis
Hepatitis A virus is best diagnosed by______________?
A. IgM antibodies in serum
B. Culture from blood
C. Isolation form stool
D. Isolation from bile
Which of the following is not a pox virus ?
A. Molluscum contagiosum
B. Cowpox
C. Small pox
D. chicken pox
Mycology And Parasitology MCQs ( Microbiology )
Serological study for prevalence of Hepatitis B is best done by______________?
A. Surface antigen
B. Core antigen
C. Surface antibody
D. Core antibody
ELISA test when compared to western blot technique is______________?
A. More sensitive, more specific
B. Less sensitive less specific
C. Less sensitive, more specific
D. More sensitive, less specific
The virus which causes Aplastic anemia in chronic hemolytic disease is_______________?
A. Hepatitis
B. Adeno
C. EB virus
D. Parvo virus
In HIV, gp 120, envelope glycoproteins bind specifically to______________?
A. B – cells
B. CD4 T-cells
C. CD8 T-cells
D. NK – cells
The small nonparticulate protein leading to enhanced replication of HBV as well as HIV is______________?
A. HBs Ag
B. HBc Ag
C. Hbe Ag
D. HBx Ag
patients with organ transplants are most frequently infected with______________?
A. Hepatitis B
B. Hepatitis A
C. CMV
D. EBV
EBV is responsible for all except______________?
A. Burkitt’s lymphoma
B. Nasopharyngeal carcinoma
C. Hepatoma
D. Infectious mononucleosis
Most common tumor associated with AIDS is______________?
A. Melanoma
B. Kaposi’s sarcoma
C. Carcinoma
D. Ewing’s sarcoma
The overall effect of HIV is to gradually impair the immune system by interference with______________?
A. Helper T lymphocytes
B. Plasma cells
C. Natural killer cells
D. Macrophages
Hepatitis C virus belongs to which one of the following virus groups ?
A. Herpes viruses
B. Picorna viruses
C. Hepadana viruses
D. Flavi viruses
Hepatitis B infection spreads through all of the following routes except______________?
A. Sexual contact
B. Blood transfusion
C. Faeco oral route
D. Perinatal transmission
Viruses can be isolated from clinical samples by cultivation in the following except_______________?
A. Embryonated eggs
B. Tissue culture
C. Animals
D. Chemically defined media
During the Window period of patient with AIDS_______________?
A. Western Blot is – ve
B. ELISA IS – ve
C. Both are – ve
D. PCR is – ve
Plaque test is used routinely in virology lab’s for________________?
A. Identification of viral disease
B. To maintain certain viral culture
C. To separate specific clone of virus
D. To prepare vaccines
All are oncogenic except________________?
A. Culex
B. Aedes
C. Anopheles
D. Mansoni
DNA covering material in a virus is called as________________?
A. Nucleocapsid
B. Capsid
C. Capsomere
D. Envelope
All are oncogenic except________________?
A. Papilloma virus
B. EB virus
C. Herpes simplex virus
D. Varicella zoster virus
True about HIV are all except______________?
A. DNA virus
B. Macrophages are the reservoir
C. Attacks CD4 cells
D. Decrease CD4 count in late stages
EBV causes all except_________________?
A. Infectious mononucleosis
B. Papilloma
C. Carcinoma of nasopharynx
D. Burkitt’s lymphoma
Australian antigen is_______________?
A. HBV
B. HBs AG
C. HB Ag
D. None of the above
Which of the following methods is adopted for screening HIV infection ?
A. Western blot followed by ELISA
B. Virus isolation
C. ELISA followed by western blot technique
D. Polymers chain reaction
Enterically transmitted NANB hepatitis B_____________?
A. Hepatitis D
B. Hepatitis C
C. Hepatitis E
D. Hepatitis F
True about immune response of hepatitis B is__________________?
A. Antibody of HBs Ag is associated with resistance to infection
B. CMI disappears soon after recover
C. Highest titres of anti HBC are found in persistent carriers of HBs Ag
D. Antibody to HBC is not protective
The best way of detecting the presence of viruses in the infected cell – culture is____________?
A. Cytopathic changes in culture cells
B. Haemagglutination test
C. Presence of viral protein in the infected monolayer
D. Haemagglutination inhibition test
The Dane particle is the______________?
A. HBV
B. Delta Virus
C. IgG anti HAV
D. HBC Ag
Baby born to mother suffering from AIDS, all are true except________________?
A. Have infections
B. Failure to thrive
C. 50% chances to have AIDS
D. All are true
The time gap between appearance of Koplik’s spot and cutaneous rash in measles is________________?
A. 2 weeks
B. 3-4 days
C. 24 Hrs
D. 10 days
Rabies virus________________?
A. Dermatotropic
B. Cytotropic
C. Chromophilic
D. Neurotropic
Virus are sharply differentiated from bacteria by_______________?
A. Simple structure
B. Presence of either DNA or RNA
C. Complex multiplication
D. All of the above
The following hepatitis virus is transmitted by faeco-oral route________________?
A. Hepatitis C virus
B. Hepatitis B virus
C. Hepatitis D virus
D. Hepatitis E virus
The virus HIV is produced and propagated in_______________?
A. B- lymphocytes
B. Circulating T4
C. Dendritic cells of the lymphnode germinal epithelium
D. Epithelial cells of the sex organs