translation.en: Gene patents typically contain dozens of claims, but the most controversial of these are to so-called "isolated DNA" -- namely, a piece of DNA that has been removed from a cell.
translation.zh: 基因专利通常包含几十条要求， 但是最矛盾的是所谓的“离体 DNA”—— 也就是从细胞中移出的 DNA 片段。