"Is hearing loss common in my family because of heredity, or because my grandmother fell down during her pregnancies?"
Honestly, this question did not make much sense to me. I would think that rather than having a fall cause deafness, it be more likely to cause other problems with the baby. In addition, IF the cause of deafness was due to the mother falling down, that would not be able to be genetically transmitted to others within the family because the original cause of deafness would not have been based on heredity. The text backs up my belief with "A simple medical fact: the fetus floats weightlessly, completely surrounded by fluid, in the amniotic sac-a great shock absorber-further protected by the mother's body and the layers of clothing" (pg 296). Genetics would have definitely been the cause of deafness within Shelley MacLean's family.
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