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The upside of bad genes

from The New York Times

There’s a well-to-do couple thinking about having children. They order a battery of genetic tests to ensure that there’s nothing untoward lurking in their genomes. And they discover that they each carry one copy of the sickle cell gene. If their children inherit two copies of the gene, they could develop anemia, which can cause joint pain, weakness and even death. So what should the couple do? more

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