Fill in the blank with the appropriate word or phrase. You should be able to complete the exercise in about 10 minutes.
An enzyme that is found in the cell in about the same amount under all growth conditions is called a/an enzyme. [Hint]
The process whereby the end product of a pathway inhibits the activity of the first enzyme in a pathway is called inhibition. [Hint]
An enzyme is one that contains two binding sites, a substrate binding site and an effector binding site. Binding of the effector molecule renders the enzyme inactive. [Hint]
When the end product of a biosynthetic pathway suppresses the synthesis of the enzymes involved in the pathway, the process is called . [Hint]
The sugar is required for induction of -galactosidase synthesis. [Hint]
During enzyme repression, the repressor protein, after binding with the co-repressor, binds to a site on the DNA called the . [Hint]
During enzyme induction, the repressor only binds to the operator in the absence of the . [Hint]
In transcription , control of transcription occurs after initiation of RNA synthesis, but before its completion. [Hint]
When more than one operon is under the primary control of the same regulatory protein, these operons are collective known as a/an . [Hint]
When Escherichia coli is grown in a medium containing glucose and lactose, the will be used first. [Hint]
