Hereditary deafness is inherited by a person's parent, or parents, based on their genes. In the chromosomes, just as a person's hair or eye color is identified, a person's hearing balance can be passed on, dominant or recessive, syndromic or nonsyndromic. Syndromic being associated with certain hearing traits as well as hearing impairment. Nonsyndromic being hearing loss as its only impairment. Dominant transmission of deafness needs only one faulty gene, from either parent to cause the hearing loss, however recessive transmission of deafness requires a faulty gene from both the mother and father.
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