發(fā)布日期：2006-04-15 來(lái)源：- 作者：659 x 234 像素 瀏覽次數(shù)：
164
核心提示：The black gene “repressor”
is transcribed from its black promoter. The black repressor protein binds to the gray promoter
DNA sequence to block the production of the gray repressor protein. The gray repressor pro-
tein blocks the production of t
