DICT.TW Dictionary Taiwan

 cis·tron /ˈsɪsˌtrɑn/
 順反子

 cis·tron /ˈsɪsˌtrɑn/ 名詞
 順反子,作用子

 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]