(A) Occlusal surface of premolars
(B) Furcation areas of permanent molars
(C) On the incisal edges of incisors
(D) None of the above

(A) Forebrain
(B) Rathke’s pouch
(C) Neural crest cells
(D) Odontoblasts

(A) Epithelial diaphragm
(B) Cell rests of Malassez
(C) Toot bud division or bell stage
(D) None of the above

(A) Incremental lines of retzius
(B) Incremental lines of von Ebner
(C) Contour lines lines of owen
(D) None of the above

(A) Booster Mechanism
(B) Seeding theory
(C) Alkaline Phosphatase theory
(D) Cartier/s Adenosine Triphosphate theory

(A) 25th day of Intra uterine life
(B) 34th day of Intra uterine life
(C) 56th day of Intra uterine life
(D) 20 wks of Intra uterine life

(A) Enamel prismatic arrangement
(B) Dentinal tubule arrangement
(C) Primary and secondary dentin
(D) Mineral content

(A) Type I
(B) Type II
(C) Type III
(D) Type IV

(A) Permanent teeth
(B) Deciduous teeth
(C) Succedaneous teeth
(D) None of the above

(A) Reduced enamel epithelium
(B) Dental papilla
(C) Inner enamel epithelium
(D) Dental sac