A normal E.coli cell that is grown for several hours in the presence of glucose alone will show _______ levels of the protein β -galactoside permease.A normal E.coli cell grown for several hours in the presence of lactase alone will show _______ levels of the protein β -galactoside permease.
A) extremely low;high B) extremely low;extremely low C) high;extremely low D) high;high E) high;variable