The other (complementary or antisense) strand always has a sequence that matches the first strand, with each C complemented by a G, and each A by a T, and vice versa.
另一条链(互补链或反义链)的序列总是与第一条链相匹配,即C与G,A与T,反过来也一样。
2
Thus on top of the dependence on g-c content, the stability of pna-dna duplexes also depends on the purine fraction of the PNA strand.