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Last updated on April 23, 2014 at 15:23 EDT

Latest Ashley Farlow Stories

2011-01-31 13:37:28

DNA was originally thought to have a single function:  to help cells make the proteins they need.  Any DNA that is not immediately required to produce proteins was written off as "junk" and deemed unworthy of study.  Recently, however, it has become clear that junk DNA performs a wide range of important tasks.  As a result, attention is shifting to asking why some organisms have so much of it and other organisms so little.  A particular puzzle is posed by so-called...