Antisense nucleic acid technique is a method using single - stranded complementary sequences with specificity assigned by watson - crick base - pairing targeted specific messenger rna or dna to block expression of target gene 反义核酸技术是根据碱基互补原理,使用与目标靶的遗传物质( mrna或dna )特定互补的核酸片段封闭基因表达的技术方法。