The human genome includes all the genes and other genetic
information contained in human cells, and sequencing it is a monumental feat that's been
compared to the U.S. moon shot or even the Manhattan Project, minus the fireworks.
It is a text 3.5 billion years in the making, and the fact that it
is written in a language we don't fully understand doesn't diminish the excitement. It
might take a century to completely decipher the genome, but year by year, that quest will
provide fresh insights into what sets humans apart from other animals.
Post-Gazette Science Editor Byron Spice researched and wrote this
four-part series, with photography by Matt Freed and PG National Bureau photographer Allan
Detrich, and illustrations by James Hilston, including "The Building Blocks"
graphic primer on DNA above.

James Hilston - Post-Gazette
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Part 4
Creating
a 'genobility'
Genes
may become big business
Examining
genetics through the lens of faith
Part 3
Visiting
the doctor in 2010: Genetic tests may change the shape of everyday medicine in the future
Crossing
the boundaries
Using
genes to spy on infections
Genetic
Gap: It may be a hot new field, but few are being trained in it
Pharmacogenomics: One day, it may allow doctors to tailor drugs to
individuals
Genetic
technology is expensive now, but that may change
Q & A: Gene therapy
Part 2
Genetic testing can
affect relationships with family, employers and insurers
A family struggles
with a genetic flaw that can kill by stopping the heart
Test results: When
nothing can be done
Test results: Hard
choices loomed over a couple's decision to seek prenatal testing
Many
genetic tests may turn out to be a mixed blessing