The exact part of the antigen that reacts with the immune system is called as_____________?

Related Mcqs:

1. The necrotic tissue and deposits of immune complexes, complement and plasma protein produce a smudy eosinophilic deposit is termed as_____________?

   A. Coagulative necrosis
   B. Fibrinoid necrosis
   C. Caesous necrosis
   D. Fatty necrosis

2. Phagocytosis enhanced by coating the surface of antigen is called______________?

   A. Opsonisation
   B. Chemotaxis
   C. De coding
   D. CFT

3. The antigen used in Weil Felix test is obtained from________________?

   A. Pseudomonas
   A. coli
   B. Proteus
   C. Staphylococcus

4. Antigen combining site of the antibody is____________________?

   A. Idiotope
   B. Paratope
   C. Epitope
   D. Hapten

5. Most sensitive test for antigen detection is_______________?

   A. Radioimmuno Assay
   B. ELISA
   C. Immunoflourescence
   D. Passive hemaglutination

6. Out of the following hypersensitivity reactions, in which type a single dose of the antigen can act as both the sensitizing and shocking dose_______________?

   A. Anaphylaxis
   B. Arthus reaction
   C. Serum sickness
   D. Contact dermatitis

7. Antigen used in Weil-Felix reaction______________?

   A. E.coli
   B. Haemophilus
   C. Proteus
   D. Staphylococcus

8. Australia antigen is associated with________________?

   A. Hepatitis B surface antigen in acute hepatitis
   B. AIDS
   C. Chronic leukemia
   D. Basal cell carcinoma

9. Australian antigen is_______________?

   A. HB Ag
   B. HBs AG
   C. HBV
   D. None of the above

10. Which of the following statement about P24 antigen of HIV is Not True ?

    A. It can be detected during the window period
    B. Free P24 antigen disappears after the appearance of IgM response to it:
    C. Virus load parallel P24 titre
    D. It remains during asymptomatic phase