249.Syndromes associated with both hyperdontia as well as hypodontia are all except

a.crouzon's disease
b.Down's syndrome
c.Hallerman streiff syndrome
d.Reiger syndrome

Ans-d.Reiger syndrome

248.First clinical sign of Vitamin A deficiency

a.corneal xerosis
b.conjuctival xerosis
c.Bitot's spots
d.Night blindness

Ans-b.conjuctival xerosis

Explanation-ref park 18th ed pg 443

247.Great sanitary awakening took place in

a.England
b.America
c.east Asia
d.Russia

Ans-England

Explanation-Ref park 18th ed pg 4