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Genetic causes of deafness
How a Costa Rican family are helping scientists understand deafness
How a Costa Rican family are helping scientists understand deafness. A 20-year study - involving a family who have disposition to go profoundly deaf - has found that genetics plays a much bigger role in hearing than had at first been thought. Also in the programme cancer research and a form of cell suicide treatment and the atomic energy industry. Presenter: Graham Easton
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Explorations in the world of science.