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even if some prospective parents are aware they have an increased risk of having a baby with a genetic disease |
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although human characteristics are more influenced by genes than by the environment |
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since a person's blood count of red and white cells varies quite a bit, depending on a wide range of factors |
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because the growing number of genetic tests available to the public has raised concern about how they are used |
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that the individual features of any organism arise from a combination of genetic and environmental factors |