The lac operon is shut off when
A、 Lactose is present;
B、Lactose is absent;
C、Fructose is present;
D、 Glucose is absent;
E、Galactose is present
发布时间:2025-07-14 03:41:01
A、 Lactose is present;
B、Lactose is absent;
C、Fructose is present;
D、 Glucose is absent;
E、Galactose is present