| When James Watson and Francis Crick first
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| | the information flow from DNA without
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| discovered the structure of DNA in 1953
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| | actually changing the structure of DNA.
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| they thought they had discovered the
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| | This idea has widespread ramifications.
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| secret of life. This complex nucleic acid
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| | It is now thought that chronic diseases
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| was capable of storing all of the
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| | such as diabetes and heart disease are
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| information necessary to produce and
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| | not solely caused by genes but also have
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| maintain a living organism. The science
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| | a strong behavioral component.
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| of genetics was born and moved toward a
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| | Information not only travels from DNA to
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| complete understanding of the gene
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| | cells but can also travel back to DNA
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| culminating in the genome project which
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| | from outside sources. There is a feedback
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| mapped the human genome in 1993.
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| | loop of information flowing to and from
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| Our genes determine what our bodies look
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| | DNA. The system consists of more than a
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| like and how they work. Even behavioral
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| | static one-way flow of information but is
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| traits have been linked to our genes.
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| | more holistic and dynamic in nature
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| Information is thought to flow down a one
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| | involving feedback from the organism.
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| way street; from the DNA wellspring to
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| | A practical implication of this concept
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| cells to the rest of the body. This
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| | is the feedback from behaviors. For
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| concept of one-way information flow is
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| | example, following a healthy lifestyle
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| even called the central dogma of biology.
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| | can not only provide benefits to your
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| But are we really slaves to our genes?
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| | wellbeing but these benefits can also be
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| Watson and Crick's monumental discovery
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| | passed on to your offspring. We have been
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| was a giant step in understanding the
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| | touting the benefits of following a
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| inner workings of life but it was not the
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| | healthy lifestyle for years but until
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| whole story. The idea of a one-way flow
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| | recently no one knew that actual genes
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| of information is now changing with the
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| | could be turned on or off.
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| new science of epigenetics. Epigenetics
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| | This opens up a whole new realm of
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| has to do with changes in the function of
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| | thinking. In other words someone may have
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| genes without changing DNA. In other
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| | a gene for cancer or heart disease but it
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| words there may be a complex information
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| | is possible for that gene never to be
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| system that affects the information flow
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| | turned on. I personally find this
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| from DNA to the cell without affecting
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| | information hopeful in finding new ways
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| the DNA itself. This system is affected
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| | to live a healthy life and to heal. We
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| by behavioral and environmental changes.
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| | are not slaves to our genes after all.
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| This means that you may be able to change
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