Deck 9

Question 1

12) Which of the following statements is TRUE:

a. Lack of generation of bactericidal agents is related with defect in phagocytic function
b. Lack of receptor for chemotactic factor is related with defect in phagocytic function
c. Lack of adhesion molecules is related with defect in phagocytic function
d. All of the above is true

Answer 1

D

Question 2

Which of the following components is for IFA

Answer 2

Antibody labelled with fluorochrome

Question 3

The direct IFA is used for

Answer 3

Determination of antigen in a cell or tissue by direct labelling with antibodies labelled with FITC

Question 4

The indirect IFA is most commonly used for

Answer 4

Testing of autoimmune disorders

Question 5

To develop a test to screen circulating anti-brucella antibodies by immunofluorescence, you need all of the following EXCEPT

Answer 5

Isolated patient’s IgG labelled with a fluorescein compound

Question 6

FACS is used for

Answer 6

Analysis and sort a mixture of the cells based on their differential ability to bind fluorescence-dye labelled ATB

Question 7

The essential step for western blotting diagnosis of BSE is

Answer 7

Treatment of the sample with proteinase K

Question 8

Serological reaction is:

Answer 8

• Serology is the scientific study of blood serum and other body fluids
• Serological reaction is Ag + Ab → AgAb, antigen binds to the antibody

Question 9

The titer of an antibody is:

Answer 9

The highest dilution of an antiserum that still react with antigen in serological reactions (X)

Question 10

Serum is obtained after:

Answer 10

Centrifugation of clotted blood (X)