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990+ Microbiology Solved MCQs

These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Bachelor of Agriculture (BSc agri) .

Chapters

Chapter: Medical Microbiology
801.

Dose of BCG vaccine is

A. 0.2–0.5 ml
B. 0.1 ml
C. 0.05 ml
D. 0.2 to 0.3 ml
Answer» B. 0.1 ml
802.

Negative Mantoux test is important in

A. Pulmonary Koch’s syndrome
B. Sarcoidosis
C. Carcinoma bronchus
D. Lymphoma
Answer» A. Pulmonary Koch’s syndrome
803.

Bacilli Calmette Guerin (BCG) contains the avirulent strains of

A. Human tubercle bacilli
B. Avian tubercle bacilli
C. Bovine tubercle bacilli
D. A typical mycobacteria
Answer» C. Bovine tubercle bacilli
804.

Drugs used against tuberculosis (TB) are

A. Refampicin, Isoniazid
B. Pyrazinamide, Streptomycin
C. Both a and b
D. None of these
Answer» C. Both a and b
805.

The greatest number of tubercle bacilli is present in

A. Large sized tuberculomas
B. Miliary tuberculosis
C. Tuberculous lymphadinitis
D. Tuberculous cavity of the lung
Answer» D. Tuberculous cavity of the lung
806.

Histoid Hansen is a veriety of

A. Tuberculoid Leprosy
B. Borderline tuberculoid
C. Borderline lepramatous
D. Lepronmetous leprosy
Answer» D. Lepronmetous leprosy
807.

Streptococcus pyogens produces all of the following lesions, except

A. Impetigo contagiosa
B. Erysipeals
C. Boil
D. Paronchia
Answer» D. Paronchia
808.

Causative agent of Scarlet fever:

A. Staphylococcus aureus
B. Streptococcus viridans
C. Stre. pyogens
D. None of these
Answer» C. Stre. pyogens
809.

Rheumatic fever is most commonly caused by

A. Str. viridan
B. Str. pyogenes
C. Stph. aures
D. None of these
Answer» B. Str. pyogenes
810.

Penicillin is the drug of choice for

A. Scarlet fever
B. Whooping cough
C. Brucellosis
D. Cholera
Answer» A. Scarlet fever
811.

In human being str. pneumoniae causes

A. Septicaemia
B. Paronychia
C. Pneumomnia
D. None of these
Answer» C. Pneumomnia
812.

Virulence factor for Stre. pneumoniae:

A. Capsular polysaccharide
B. Specific soluble substance
C. Vi-antigen
D. Forsmann antigen
Answer» A. Capsular polysaccharide
813.

Conjunctivitis in a new born is caused by

A. Streptococcu
B. Pneumococcus
C. Meningococci
D. None of these
Answer» A. Streptococcu
814.

Influenza is belonging to

A. Orthomyxoviridae
B. Retroviridae
C. Both a and b
D. None of these
Answer» A. Orthomyxoviridae
815.

Influenza virus contains

A. Eight segments of RNA
B. Two strands of RNA
C. Single RNA
D. None of these
Answer» B. Two strands of RNA
816.

‘Reye’s syndrome’ is caused by

A. St.pneumoniae
B. St.pyogenes
C. Influenza
D. None of these
Answer» C. Influenza
817.

Geraman measles is also known as

A. Rubella / 2-day measles
B. Rubella / 3day measles
C. Rubella / 4-day measles
D. Rubella / 1-day measles
Answer» B. Rubella / 3day measles
818.

The commonest cause of rubella in new bornes

A. Congential rubella
B. Post natal rubella
C. Expanded rubella syndrome (ERS)
D. Both a and c
Answer» D. Both a and c
819.

Mumps virus is belonging go

A. Retroviriae
B. Paramyxoviriae
C. Orthomyxo viridae
D. None of these
Answer» B. Paramyxoviriae
820.

Measles is characterized by

A. Negribodies
B. Babes-Ernest granules
C. Koplik’s spots
D. Fever
Answer» B. Babes-Ernest granules
821.

Brucella causes

A. Pertusi
B. Plague
C. Brucellosis
D. None of these
Answer» C. Brucellosis
822.

Mediterranian fever is caused by

A. M. tuberculosi
B. S. typhi
C. C.neoformans
D. Brucella
Answer» D. Brucella
823.

Which of the following test is specific for Brucellosis?

A. Frei
B. Weil
C. Castaneda strip
D. Rose water
Answer» C. Castaneda strip
824.

Malignant pustule is caused by

A. Anthrax
B. Tetanus
C. Diphtheria
D. None of these
Answer» A. Anthrax
825.

The commonest form of anthrax in man is

A. Alimentary
B. Cutaneous
C. Pulmonary
D. Hepatic
Answer» B. Cutaneous
826.

The animals most frequently infected with anthrax are

A. Sheep
B. Cattle
C. Goats
D. All of these
Answer» D. All of these
827.

Virus causing Rabies is

A. Orthromyxo viru
B. Paramyxo virus
C. Rhbdo virus
D. Toga viruses
Answer» C. Rhbdo virus
828.

Rhabdo viruses are belonging to the family:

A. Rhabdo viridae
B. Toga viridae
C. Paramyxo viridae
D. None of these
Answer» A. Rhabdo viridae
829.

Rabies Virus isolated from natural human or animal infection is termed as

A. Street viru
B. Fixed virus
C. Both a and b
D. None of these
Answer» A. Street viru
830.

Rabies virus can multiply in

A. The central nervous system only
B. The peripheral nerves
C. Muscle tissues
D. All the above
Answer» D. All the above
831.

Neurological complications following rabies vaccines is common with

A. Chick embryo vaccine
B. HDCS vaccine
C. Semple vaccine
D. BPL vaccine
Answer» C. Semple vaccine
832.

Which anti rabic vaccine has been recommended by WHO as the most effective?

A. Duck embryo vaccine
B. HDCS vaccine
C. Sheep brain vaccine
D. BPL vaccine
Answer» B. HDCS vaccine
833.

The causative agent of tetanus is

A. Clostridium botulinum
B. Cl. tetani
C. Cl. welchii
D. Cl. perfringens
Answer» B. Cl. tetani
834.

The mode of spread of tetanus neurotoxin from blood to brain is

A. Via lymphaties
B. Arterial blood
C. Cranial nerves
D. None of these
Answer» C. Cranial nerves
835.

Tetanus is caused by spread of

A. Exotoxin in sympathetic system
B. Exotoxin in para sympathetic system
C. Endotoxin in sympathetic system
D. Endotoxin in parasympathetic system
Answer» A. Exotoxin in sympathetic system
836.

The first symptom of tetanus is

A. Lock jaw
B. Trismus
C. Anorexia
D. Dyspagia
Answer» B. Trismus
837.

Of which clostridia, the neurotoxin is most powerful?

A. Cl. tetani
B. Cl. welchii
C. Cl. botulism
D. Cl. septicum
Answer» C. Cl. botulism
838.

Toxin produced by C. botulism is

A. Botulin
B. Tetanospasmin
C. Tetanolysin
D. Cholaragen
Answer» A. Botulin
839.

“Toxic shock syndrome” is caused by the toxin of

A. Staphylococcus aureus
B. Streptococcus pyoge
C. Vibrio cholerae
D. Candida
Answer» A. Staphylococcus aureus
840.

Causative agent of syphilis

A. T. pallidum
B. T. pertenue
C. T. carateum
D. T. endemicum
Answer» A. T. pallidum
841.

Spirochaelis are sensitive to

A. Penicillin
B. Chloramphenicols
C. Erythromycin
D. Tetracyclins
Answer» B. Chloramphenicols
842.

Specific test for syphilis is

A. VDRL test
B. ELISA
C. FTA
D. None of these
Answer» A. VDRL test
843.

VDRL test is a

A. Agglutination test
B. Slide flocculation test
C. Precipitation test
D. None of these
Answer» B. Slide flocculation test
844.

The following characters are true about Neisseria gonorrhoeae except

A. Gram-negative, aerobic bacteria
B. Non-motile diplococci
C. Oxidase positive organisms
D. Air borne infection
Answer» D. Air borne infection
845.

Gonorrhoea is

A. Air borne disease
B. Water borne disease
C. Sexually transmitted venereal disease
D. Both a and c
Answer» C. Sexually transmitted venereal disease
846.

Bartholin cyst is caused by

A. Candida
B. Streptococcus
C. Staphylococcus
D. Gonococcus
Answer» D. Gonococcus
847.

Neisseria gonorrhoeae causes

A. Urethriti
B. Conjuctivitis
C. Arthritis
D. All of the above
Answer» D. All of the above
848.

Virulence in gonococcus is due to

A. Pili
B. Cell membrane
C. Its cellular location
D. Cyclic enzymes
Answer» A. Pili
849.

Japanese encephalitis is caused by

A. Toga Viruse
B. Arbo Viruses
C. Para myxo Viruses
D. Ortho myxo Viruses
Answer» B. Arbo Viruses
850.

In India, Japanese b encephalitis was first isolated from the mosquitoes of the

A. Culex tritaeriorhynchus
B. Culex annulirostris
C. Culex vishnui
D. None of these
Answer» C. Culex vishnui

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