英语语法分析

PCR products were digested with endonuclease and sequenced.

PCR产物经限制性内切酶消化、序列测定及分析。

Methods:DNA sequencing and restriction endonuclease reaction was used.

方法：采用DNA测序及限制性酶切反应方法。

In this study, a detailed restriction map was constructed using multiple groups of restriction endonuclease analysis.

本研究利用多种组合的酶切分析，绘制了较为详细的酶切图谱。