Allolactose, an isomer of lactose, is formed in small amounts from lactose. An E. coli cell is presented for the first time with the sugar lactose (containing allolactose) as a potential food source. Which of the following occurs when the lactose enters the cell?
A) The repressor protein attaches to the regulator.
B) Allolactose binds to the repressor protein.
C) Allolactose binds to the regulator gene.
D) The repressor protein and allolactose bind to RNA polymerase.
E) RNA polymerase attaches to the regulator.
Synthesis of the active hormone formed from vitamin D or its precursor in skin.
The African Pygmy Goose (Nettapus auritus) is a very small perching duck from sub-Saharan Africa.
Grace Service, a YMCA missionary, explained that these porters worked at the base of Mount Omei in S
Small intestine.
Two normal frequency distributions with the same mean but different amounts of variation
Model of the lactose operon repressor