<P> A cistron is an alternative term to a gene . The word cistron is used to emphasize that genes exhibit a specific behavior in a cis - trans test; distinct positions (or loci) within a genome are cistronic . </P> <P> The words cistron and gene were coined before the advancing state of biology made it clear that the concepts they refer to are practically equivalent . The same historical naming practices are responsible for many of the synonyms in the life sciences . </P>

Who gave the term cistron recon and muton