Of nearly 200 forms of hereditary deafness,132 are autosomal recessive,64 autosomal dominant and 4 X-linked recessive.Hereditary deafness is therefore genetically

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The term "heterogenic" refers to a genetic condition caused by mutations in multiple different genes, which is applicable to hereditary deafness as there are multiple forms caused by mutations in different genes. The other choices are not relevant to the genetic nature of hereditary deafness.

Of Nearly 200 Forms of Hereditary Deafness,132 Are Autosomal Recessive,64