The terms recon, muton and cistron were coined in 1957 by

The terms recon, muton, and cistron were coined in 1957 by Benzer.
These terms were coined by Seymour Benzer in an article entitled “The elementary units of heredity.”
Recon is the unit of recombination present in the DNA.
Muton is the element of the DNA that is capable of undergoing mutation easily.
The cistron was defined by an operational test applicable to most organisms that are sometimes referred to as a cis-trans test.