quadruplex

例句：

1. 1. The quadruplex chromosomes are responsible for the unique features of this species.
   四重体染色体是这种物种独特特征的原因。
2. 2.In genetics, a quadruplex DNA sequence is a type of repeating sequence that occurs in multiple copies.
   在遗传学中，四重体DNA序列是一种重复序列，它以多个拷贝的形式出现。
3. 3.The discovery of quadruplex structures has led to new insights into the behavior of materials under extreme conditions.
   发现四重体结构有助于我们深入了解材料在极端条件下的行为。