Question

Why every cistron is gene but every gene iis not a cistron?

Answer 1

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. A cistron nothing but an alternative term to a gene. It is a section of DNA or RNA which codes a specific polypeptide in a protein chain.


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Answer 2

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.