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Glenn Nichols, surrounded by his hospice team. The author is in yellow.

Genetic Linkage

Limits of Genome Sequencing Not a Surprise

April 3, 2012

Tags: whole genome sequencing, whole exome sequencing, Ricki Lewis, Bert Vogelstein, Science Translational Medicine

Comparing whole genome (or exome) sequencing to predict common diseases or identify rare single-gene diseases is like comparing the proverbial apples to oranges.
The news is being trumpeted everywhere – whole genome sequencing won’t help the average person predict common illnesses.

This isn’t exactly astonishing to anyone who has taken a genetics course, but the Johns Hopkins team, in Science Translational Medicine, provides elegant evidence to back up the long-held idea that the so-called “complex," common diseases result from so many intertwined inherited as well as environmental threads that using a DNA sequence as a crystal ball just won’t work – at least until more data accumulate. (more…)

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