注：如果需要95%的纯度，就在90%的基础上乘以1.2。 肽核酸 (Peptide Nucleic Acid，PNA) 是一种人工合成的类似于 DNA 或 RNA的聚合物 ...

We have also studied an alternative to DNA, the Peptide Nucleic Acids (PNA) which have a neutral backbone. An array of PNA probes complementary to tRNAphe was used to study the hybridisation ...