英语语法分析

Saccharomyces cerevisiae is one of the most important heterologous expression systems.

酿酒酵母系统是最重要的外源基因表达系统之一。

Also, S. pombe has prospective biotechnological application in heterologous gene expression.

它在外源基因表达方面同样具有前景。

The production of polyketides in heterologous hosts offers many advantages over the use of natural producers.

利用异源宿主合成聚酮化合物要比使用天然生产菌有很多优点。