You first separated your DNA, let the primers bind, then turn on the enzyme, and it makes copies of each one of these.

首先解旋DNA双链,使引物结合,接着激活聚合酶,最终得到各链的复制产物

耶鲁公开课 - 生物医学工程探索课程节选

A primer is a short RNA sequence or DNA sequence that gets sort of the process of replication jump started, and that's just because of the biological properties of DNA polymerase that that primer's needed.

引物是一段短的RNA或者DNA序列,引物是整个复制的起点,因为DNA聚合酶的,生物特性,引物在复制过程是必不可少的

耶鲁公开课 - 生物医学工程探索课程节选