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]