Chapter 3: DNA Testing and Analysis

The late Barbara Jordan, a noted United States Congresswoman, once said: “It has become commonplace to observe that we live in changing times. But the observer seldom adds the information “From what to what?”

In the world of DNA science and advancing genomic technologies we now can begin to answer “From what to what?” While traditional clinical genetics has focused on one or two genes related to a suspected disease, future genomic analyses will probably involve many more of the 30,000 to 40,000 genes in a person’s genome.

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