One of them has the right sequence of codons to specify the amino acid sequence of the protein, and the other one has a complimentary sequence.

该段带有正确的密码子序列,能够指导氨基酸序列合成蛋白质,另一段则是它的互补序列

耶鲁公开课 - 生物医学工程探索课程节选