Which of the following expressions demonstrates the correct procedure for multiplying a fraction by a whole number?
A) 10 =
B) 10 =
C) 10 =
D) 10 = 10 5 2
Question 2
A laboratory technician performs an antibody titer. A reaction is detected in every dilution from 1:2 up to and including 1:64. What does this tell the technician about the amount of antibody present?
A) The amount of antibody in the original sample can be calculated by multiplying 64 by the total number of tubes used in the dilution.
B) The antibody is able to detectably bind all the antigen present in a sample when the concentration of antibody is at a 1:64 dilution.
C) There is enough antibody in the serum to react visibly with antigen when diluted 64-fold, but not at 128-fold or more.
D) All of the above
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