pyrimidine dimer

例句：

1. 1. DNA damage caused by exposure to ultraviolet radiation can lead to the formation of pyrimidine dimers.
   暴露于紫外线辐射下会导致DNA损伤，进而形成嘧啶二聚体。
2. 2.The study found that pyrimidine dimers could be a marker for cancer development.
   研究发现，嘧啶二聚体可能是癌症发展的标志。
3. 3.In this research, we focused on the role of pyrimidine dimers in cancer progression.
   在这项研究中，我们专注于嘧啶二聚体在癌症进展中的作用。