(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" 同义词：gene, factor,
A cistron is a gene. The term cistron is used to emphasize that genes exhibit a specific behavior in a cis-trans test; distinct positions (or loci) within a genome are cistronic
例句与用法
1.
Application of the cis-trans test defines the genetic unit of function, the cistron . 顺反测验可以用来确定遗传的功能单位顺反子。
2.
Application of the cis - trans test defines the genetic unit of function , the cistron 顺?反测验可以用来确定遗传的功能单位? ?顺反子。
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