Lichenoid reactions are mainly due to:____________?

Related Mcqs:

1. R-RNA is mainly produced mainly in___________?

   A. Nucleus
   B. Nucleolus
   C. Ribosome
   D. Endoplasmic reticulum

2. Contraceptive action of combined pill is mainly due to_______________?

   A. Decrease in tubal motility
   B. Prevents the fertilization
   C. Prevents the implantation of fertilized egg
   D. Inhibits ovulation

3. All these reactions take place inside the mitochondria except____________?

   A. EMP pathway
   B. Krebs cylce
   C. Urea cycle
   D. Electron transfer

4. Hypersensitivity reactions like contact dermatitis can be caused by______________?

   A. polysulfides
   B. Condensation silicones
   C. addition silicones
   D. Polyether

5. 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

6. The phase I reactions of drug metabolism include The following except_____________?

   A. Hydolysis
   B. Reduction
   C. Oxidation
   D. Conjugation

7. Allergic reactions depends on all except____________?

   A. previous exposure to the drug
   B. Dosage of the drug received
   C. Pharmacological action of the drug
   D. Antigen antibody reaction

8. Which of the following drugs will not produce allergic reactions ?

   A. Pencillins
   B. Sulfonamides
   C. Certrizine
   D. Cephalosporins

9. Cavity formation in a tooth, due to dental caries is due to______________?

   A. Destructive potential of streptococcus mutans
   B. Destructive potential of lactobacillus acidophilus
   C. Lateral spread of caries along DE junction and weakening of the outer covering enamel
   D. Mastectomy force and unrelated to the extent of carious process

10. Hypodontia is mainly found in all except___________?

    A. Papillion levefre syndrome
    B. Osteopetrosis
    C. Cleidocranialdysostosis
    D. Ectodermal dysplasia