What is the term for the marriage pattern that may contribute to hereditary deafness?

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The term consanguinity refers to a marriage pattern that involves unions between individuals who are closely related by blood, such as cousins. This practice can lead to an increased likelihood of genetic disorders, including hereditary deafness, due to the higher chance of both parents carrying the same recessive genes for certain conditions. When closely related individuals have children, any genetic traits they share, including those that may lead to deafness, can manifest more frequently in their offspring. In populations where consanguineous marriages are common, there is often a noted increase in the occurrence of genetic conditions, underscoring the genetic implications associated with this type of marriage pattern.

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