SECOND CODE. “Scientists “discovered evidence of a “second code” written into DNA. This code controls what are called transcription factors (TF) which regulate the flow (or transcription) of genetic information from DNA to messenger RNA that manage the synthesis of proteins described in the DNA.”
http://www.forbes.com/sites/anthonykosner/2013/12/13/seven-ways-to-look-at-the-double-meaning-of-dna-code/#2715e4857a0b7770f02e109a