Latest History of Micro Biology Multiple Choice Questions And Answers

81. Serum sickness reaction was discovered by
a. Marrice Arthus
b. Von perquit
c. Richet
d. Porter
Ans: B

82. Hybridoma technique was developed by
a. Kochler & Milston
b. Niel’s Jerne
c. Both a and b
d. None of these
Ans: C

83. Disease that effects many people at different countries is termed as
a. Sporadic
b. Pandemic
c. Epidemic
d. Endemic
Ans: A

84. If the vectors transmit the infection mechanically they are called
a. Biological vectors
b. Mechanical vectors
c. Biological reservoir
d. Both a and c
Ans: B

85. If a person can be infected by direct contact with infected tissue of another person, it is termed as
a. Indirect contact transmission
b. Attachment
c. Direct contact transmission
d. None of these
Ans: C

86. Reduction of virulence is known as
a. Exaltation
b. Attenuation
c. Both a and b
d. None of these
Ans: B

87. Enhancement of virulence is known as
a. Exaltation
b. Attenuation
c. Both a and b
d. None of these
Ans: A

88. The virulence of a pathogen is usually measured by
a. LD
b. MLD
c. ID
d. All of the above
Ans: D

89. The lethal dose required to kill 50% of the lab animals tested under standard called
a. ID
b. LD50
c. ID50
d. MLD
Ans: B

90. The most important virulence factors are
a. Adhesions
b. Invasiveness
c. Toxigenicity
d. Enzymes
e. All of the above
Ans: E

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Frequently Asked History of Micro Biology Multiple Choice Questions And Answers

71. Who perfected a magnetic lens in 1927
a. Gabor
b. Broglie
c. Busch
d. None of these
Ans: A

72. The magnefication power of electron microscope developed by Knell and Ruska is
a. 10,000x
b. 12,000x
c. 15,000x
d. 20,000x
Ans: B

73. In electron microscope source of electrons is from
a. Mercury lamp
b. Tungsten metal
c. Both a and b
d. None of these
Ans: B

74. The electron passed out from the specimen are called
a. Primary electrons
b. Secondary electrons
c. Tertiary electrons
d. None of these
Ans: B

75. Mycorrhiza was first observed by 
a. Funk
b. Frank
c. Fisher
d. Crick
Ans: B

76. The transfer of genetic material during transformation is proved basing on Griffith’s experiment by
a. Avery Macleod & Mc.Carthy
b. Lederberg & Taulum
c. Zinder & Lederberg
d. Watson & Crick
Ans: A

77. Phagocytic theory was proposed by
a. Louis Pasteur
b. Elie Metchnikoff
c. Behring
d. Widal
Ans: B

78. Anaphylaxia was first observed by
a. Parter & Richet
b. Coombs
c. Gell
d. None of these
Ans: A

79. Primary mediators in anaphylaxis
a. Histamine
b. Seratonin
c. Heparin
d. All of these
Ans: D

80. Arthus reaction was discovered by
a. Marrice Arthus
b. Von Perquit
c. Richet
d. Porter
Ans: A

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History of Micro Biology Multiple Choice Questions And Answers

21. Which type of spores are produced sexually?
a. Conidia
b. Sporangiospores
c. Ascospores
d. None of these
Ans: C

22. Bacterial transformation was discovered by
a. Ederberg and Tatum
b. Beadle and Tatum
c. Griffith
d. None of these
Ans: A

23. Father of microbiology is
a. Louis Pasteur
b. Lister
c. A.V. Leeuwenhock
d. Robert Koch
Ans: C

24. The antiseptic method was first demonstrated by
a. Lwanowski
b. Lord Lister
c. Edward Jenner
d. Beijerinck
Ans: B

25. Small pox vaccine was first discovered by
a. Robert Koch
b. Louis Pasteur
c. Lister
d. Edward Jenner
Ans: D

26. The term mutation was coined by
a. Pasteur
b. Darwin
c. Hugo devries
d. Lamark
Ans: C

27. Compound microscope was discovered by
a. Antony von
b. Pasteur
c. Johnsen & Hans
d. None of these
Ans: C

28. Father of Medical Microbiology is
a. Pasteur
b. Jenner
c. Koch
d. A.L.Hock
Ans: C

29. Disease that affects many people at different countries is termed as
a. Sporadic
b. Pandemic
c. Epidemic
d. Endemic
Ans: B

30. Prophylaxis of cholera is
a. Protected water supply
b. Environmental sanitation
c. Immunization with killed vaccines
d. All of these
Ans: B

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