A. C3
B. C5
C. C2
D. Protein B
✅ The correct answer is option C3.
1122. The interaction of antigens with antibodies on the surface of a mast cel leads to degranulation and anaphylaxis. The mast cell granules produce anaphylaxis because they contain________________?
A. Lysosomes
B. Proteolytic enzymes
C. Lymphotoxins
D. Vasoactive mediators
✅ The correct answer is option Vasoactive mediators.
1118. Electron microscopic examination of the bacterial flora of necrotising ulcerative gingivitis indicates the presence of microorganisms within non-necrotic tissues in advance of other bacteria. The organisms involved are______________?
A. Cocci
B. Spirochetes
C. Bacteriophages
D. Filamentous rods
✅ The correct answer is option Spirochetes.
1145. Which of the following immunoglobulins has the highest mean serum concentration in humans_________________?
A. IgA
B. IgD
C. IgG
D. IgM
✅ The correct answer is option IgG.
1141. Bacteria reproduce mainly by______________?
A. Budding
B. Binary fission
C. Sporing
D. Bacterial components produced by host cells
✅ The correct answer is option Binary fission.
166. Superior thyroid artery accompanies which nerve ?
A. External laryngeal
B. Internal laryngeal
C. Superior laryngeal
D. C and A
✅ The correct answer is option A. External laryngeal.
1080. The faciolingual angulation of the upper central incisor is approximately___________________?
A. 20°
B. 28°
C. 33°
D. 38°
✅ The correct answer is option B. 28°.
In Hartnup’s disease _______ is excreted in the urine?
A. Ornithine
B. Glutamine
C. Tryptophan
D. Phenylalanine
✅ The correct answer is option C. Tryptophan.
45. What is common in amalgam and ceramics ?
A. More compressive strength but less tensile strength
B. More compressive strength and tensile strength
C. Less compressive strength but more tensile strength
D. Less compressive strength and tensile strength
✅ The correct answer is option B. More compressive strength and tensile strength.
48. To prevent porosity in dental porcelain it should be backed________________?
A. Boric oxide
B. In vacuum
C. For long period
D. Under pressure
✅ The correct answer is option B. In vacuum.