At that time, it had only been demonstrated that RNA could cleave or ligate phosphodiester bonds.

当时只能证明rna可以切割和连接磷酸二酯键。

youdao

At that time, it had only been demonstrated that RNA could cleave or ligate phosphodiester bonds.

当时只能证明rna可以切割和连接磷酸二酯键。

youdao