Dark bonds that are present in enamel rods at intervals of 4 μms are______________?
		A.	Neonantal bands
B.	Cross striations
C.	Striae of Retzius
D.	Hunter-Schregar bands
		A.	Neonantal bands
B.	Cross striations
C.	Striae of Retzius
D.	Hunter-Schregar bands
		A.	The gall bladder
B.	Kupffer cells
C.	Hepatic duct
D.	Hepatocytes
		A.	Dental papilla
B.	Reduced enamel organ
C.	Dental Sac
D.	Dental pulp
		A.	Maxillary lateral incisor & mandibular canine
B.	Maxillary 2nd premolar & maxillary 1st molar
C.	Maxillary 2nd premolar & mandibular canine
D.	Maxillary 1st molar & mandibular 2nd premolar
		A.	It is required for the process of transmination
B.	It is co-factor in oxidative reduction
C.	It is co-enzyme for transketolase in pentose phosphate pathway
D.	It is co-enzyme for pyruvate dehydrogenase
		A.	Kidney
B.	Spleen
C.	Liver
D.	Heart
		A.	Osteosarcoma
B.	Metastatic bone cancer
C.	Multiple myeloma
D.	Squamous cell carcinoma