Examlex
The ________ is located to the rear of the brain stem; it coordinates certain reflexes and controls balance.
Allosteric Site
A region on an enzyme that binds to molecules in the cell, resulting in a change in the enzyme's activity; not the active site where substrate molecules bind.
Tryptophan Operon
A segment of DNA in bacteria that regulates the production of tryptophan by switching the genes responsible for its synthesis on or off.
Active Repressor Protein
A protein that binds to specific DNA sequences to inhibit the transcription of certain genes, controlling gene expression.
Inactive RNA Polymerase
An RNA polymerase enzyme in a resting state that is not involved in the transcription of DNA into RNA.
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