1.Finally, a ligase enzyme which would be the glue binds the two ends of DNA.

最后，一种连会将DNA两端连起来。

2.Finally, DNA polymerase fills the gaps on both sides of the union and DNA ligase seals the bond.

最后，DNA会填补两侧连处的空白；DNA连会将化学键连起来。

3.Then, DNA polymerase and ligase again fill in and repair the cut strand.

然后， DNA 和连再次填充并修复的链。机翻

4.He then mapped out how two other enzymes are involved: DNA polymerase, which fills in the gap, and DNA ligase, which stitches the pieces back together.

然后，他绘制了另外两种的参与方式：填补空白的 DNA 和将片段缝在一起的 DNA 连。机翻

5.Beginning with the lab of Paul Berg in 1972 (aided by EcoRI from Herbert Boyer's lab, building on work with ligase by Arthur Kornberg's lab), molecular biologists put these pieces together to produce the first transgenic organisms.

从1972年Paul Berg的实验室开始（在Herbert Boyer实验室的EcoRI的帮助下，Arthur Kornberg的实验室利用连进行工作），分子生物学家将这些碎片放在一起，生成了第一批转基因生物。