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cistron
cis·tron [ sís tròn ] (plural cis·trons)


noun 
Definition:
 
DNA section coding for protein subunit: a section of DNA containing the genetic code for a short chain of amino acids polypeptide that is the smallest functional unit carrying genetic information
[Mid-20th century. <cis- + trans- + -on1]

cis·tron·ic [ sis trónnik ] adjective
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