Otospongiosis is inherited as -: (A) Autosomal dominant, (B) Autosomal recessive, (C) X- linked dominant, (D) X- linked recessive
Answer is A. The exact etiology of otosclerosis is not known. In otosclerosis family history/heredity plays an important role. About 50% of patients of otosclerosis have a positive family history.

It is an automosal dominant conditionQ
Shows incomplete penetranceQ and variable expressionQ

Also Remember:      It may be associated with Vander Hoeve syndrome