也叫前导链（leading strand），DNA 复制时，若以走向为3ˊ-5ˊ的亲代链为模板，子代链就能连续合成，称为先导链。
先导链与滞后链编码序列的碱基使用频率基本一致。
There is same bases usage frequency in coding sequence between leading strand and lagging strand.
先导链与滞后链在第一、第二、第三密码子碱基使用频率基本一致且显著正相关。
The result show:1 there is same bases usage frequency in coding sequence between leading strand and lagging strand 2 There also same bases usage frequency in first codon, second codon and third codon.
应用推荐