Cistron

1 definition found

From WordNet (r) 2.0 [wn]:

  cistron
       n : (genetics) a segment of DNA that is involved in producing a
           polypeptide chain; it can include regions preceding and
           following the coding DNA as well as introns between the
           exons; it is considered a unit of heredity; "genes were
           formerly called factors" [syn: {gene}, {factor}]