It turns out that there are 2 known purposes for the genetic code. A tiny part of the DNA provides detailed step by step instructions on how to construct the parts that make up the proteins in our bodies. However the biggest part of the DNA has the job of telling the other DNA what to do, this used to be considered the "junk DNA". At what time proteins are created, the DNA is read 3 bases simultaneously, in Clusters of 3 called which are known as codons. So the DNA could act as the plans on how to build the protein but also at the same time be one step in a direction on how to govern genes. So now we know that the Genome uses 2 languages at the same time.
So in conclusion there is no such thing as junk DNA and thus one more evidence for evolution vanishes away.
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Reference : Genesis Week season 3 episode 16