The antigen used in Weil Felix test is obtained from________________?

Related Mcqs:

1. Antigen used in Weil-Felix reaction______________?

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

2. Most sensitive test for antigen detection is_______________?

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

3. Weil’s zone of pulp is__________?

   A. Cell degenerated zone
   B. Cell rich zone
   C. Cell regenerated zone
   D. cell free zone

4. A 9 year old child has increased horizontal anterior bone loss, cementum and on test shows excretion of phophoethanolamine in the urine. The child is suffering from________________?

   A. Hypophosphatasia
   B. Vit. D resistant Rickets
   C. Juvenile periodontitis
   D. Osteomalacia

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

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

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

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

7. Antigen combining site of the antibody is____________________?

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

8. 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

9. Which of the following is most potent antigen for stimulating both humoral and cell mediated immunity ?

   A. Adjuvant
   B. Proteins
   C. Polysaccharides
   D. Lipids

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