Tryptophan synthesis is controlled by a repressor protein which is activated by a corepressor which is
A)leader peptide.
B)promoter locus.
C)operator locus.
D)tryptophan.

Question

Quizplus · Accepted Answer

Tryptophan synthesis is controlled by a repressor protein which is activated by a corepressor. In this case, the corepressor is tryptophan itself. When there is ample tryptophan in the cell, it acts as a corepressor and binds to the repressor protein, activating it and turning off the genes involved in tryptophan synthesis.

Tryptophan Synthesis Is Controlled by a Repressor Protein Which Is