rfscCOCA²⁵³⁷⁶⁶ 基本例句 🌏同义密码子相对使用频率性相对使用频度 The high-frequency codons were selected by high- frequency codon analysis according to relative frequency of synonymous codon ( RFSC which is calculated by RFCS program written by ourselves. 利用自编的 RFCS程序计算同义密码子相对使用频率 RFSC ，并根据 RFSC值筛选出高频密码子。 dictall