乳糖操纵子模型的建立与教学中若干问题的解析

邢万金

The establishment process of lac operon model and the analysis of several teaching problems

Xing Wanjin

图3 几种半乳糖苷衍生物的分子结构 A：乳糖(lactose);B：异乳糖(allolactose);C：硫代甲基-β-D-半乳糖苷(thiomethyl-beta-D-galactoside, TMG);D：异丙基硫代β-D-半乳糖苷(isopropyl-beta-D-thiogalactoside, IPTG);E：苯酰硫代半乳糖苷(thiophenyl-galactoside)。

Fig. 3 Structural formula of several galactosidic derivatives