Introduction to Epigeneitcs Science
What is epigenetics?
The term epigenetic is often used to describe a variety of unexpected patterns of gene regulation.
Chemical modifications of chromosomal DNA and/or structures that change the pattern of gene expression without altering the DNA sequence.
http://en.waleedabobatta.com/2018/03/28/introduction-to-epigenetics-science/The Epigenome
™The epigenome
consists of the chemical compounds that tell DNA what to do,
where to do it and when to do it,
™All of which can
be functions undertaken by any one of organism cells using the same identical DNA toolkit.
e.g. grow a finger vs. grow a nose,
grow cancer vs fight cancer.
in other words,
if DNA is hardware and epigenome as the software that controls hardware. 
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