Sentence:  The <WSD>genon</WSD> is defined as the coding sequence (which can then revert to being called "gene," akin to the sense of cistron, but better (less ambiguously) expresed in terms of the mRNA that is translated into a protein) together with the additional information that is needed to fully express the coding sequence. The <WSD>genon</WSD> is therefore more akin to a program that results in a functionally active gene product. 
Meaning of the word marked with <WSD> tags:  A coding sequence (or gene) together with the information necessary to fully express that coding sequence, such as epigenetic factors.