It is conjectured that MH can diretly act on DNA and adjust the rate of relevant genie replication or transcription so that the rate of biosynthesis of silk protein is changed.

• 由此认为MH能直接作用于遗传物质DNA,通过调节有关基因的复制或者转录速度,从而对丝蛋白的生物合成产生某种影响。