资料来源 : pyDict

顺反子

资料来源 : WordNet®

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}]