selective marker

• 选择标记

selective marker的用法和样例：

例句

1. A new strategy that offers a approach for the elimination of those disadvantages caused by the selectable marker gene is developed.
   为了消除这些弊端，一种全新的发展策略即获取无选择标记的转基因植物应运而生。
2. One is the utilization of bio-safe positive selective markers which are genes mainly related to metabolism of auxins and carbohydrates.
   一是选用安全的正向选择标记，主要是与糖代谢和激素代谢相关的基因。