Binding of Tryptophan to the ________ Makes a Holorepressor

Question

Binding of tryptophan to the ________ makes a holorepressor.
A) aporepressor
B) corepressor
C) repressor
D) inducer
E) activator

Accepted Answer

Tryptophan binds to the aporepressor, forming a holorepressor that can then bind to the operator region of DNA to repress transcription of the tryptophan operon in bacteria.