In precipitation tests,the antigen ________.
A) is a soluble molecule
B) is an insoluble molecule
C) is a whole cell
D) antibody complex settles to the bottom of the tube
E) None of the choices are correct.
Correct Answer:
Verified
Q17: Phage typing is useful in identifying _.
A)Treponema
Q18: Which of the following is not a
Q19: Which of the following is involved in
Q20: Specimen collection _.
A)is always done by a
Q21: Serological tests should have low sensitivity and
Q23: A positive indirect ELISA result requires _.
A)one
Q24: The Weil-Felix test is used for diagnosing
Q25: Syphilis can be diagnosed most easily by
Q26: When minute samples of DNA need to
Q33: Serological testing always involves reactions between specific
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