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AP Biology MCQ
Biological Macromolecules
Elements of Life
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MCQ on Epistasis
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Most Probable Number (MPN) Test
Neuroscience MCQ
291
Serum sickness reaction was discovered by
A:
Maurice Arthus
B:
Von Perquet
C:
Richet
D:
Porter
292
Arthus reaction was discovered by
A:
Maurice Arthus
B:
Von Perquet
C:
Richet
D:
Porter
293
Primary mediators in anaphylaxis are
A:
Histamine
B:
Serotonin
C:
Heparin
D:
All of these
294
Anaphylaxis was first observed by
A:
Parter & Richet
B:
Coombs
C:
Gell
D:
None of these
295
Phagocytic theory was proposed by
A:
Louis Pasteur
B:
Elie Metchnikoff
C:
Behring
D:
Widal
296
The transfer of genetic material during transformation is proved based on Griffith’s experiment by
A:
Avery MacLeod & McCarthy
B:
Lederberg & Tatum
C:
Zinder & Lederberg
D:
Watson & Crick
297
Mycorrhiza was first observed by
A:
Funk
B:
Frank
C:
Fisher
D:
Crick
298
The electrons passed out from the specimen are called
A:
Primary electrons
B:
Secondary electrons
C:
Tertiary electrons
D:
None of these
299
In an electron microscope, the source of electrons is from
A:
Mercury lamp
B:
Tungsten metal
C:
Both a and b
D:
None of these
300
The magnification power of the electron microscope developed by Knoll and Ruska is
A:
10,000x
B:
12,000x
C:
15,000x
D:
20,000x
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