Tryptophan is an amino acid that is synthesized via a series of metabolic reactions. The genes for the enzymes involved in tryptophan biosynthesis are encoded in an operon in E. coli, a prokaryote. The operon is regulated by a repressor, which changes its shape when tryptophan binds to it. Which of the following statements explains the action of the repressor? (1 point)
When tryptophan levels are high, it binds to the repressor, changing its shape so that it cannot bind to the operator region.
When tryptophan levels are low, it binds to the repressor, changing its shape so that it cannot bi

Question

Tryptophan is an amino acid that is synthesized via a series of metabolic reactions. The genes for the enzymes involved in tryptophan biosynthesis are encoded in an operon in E. coli, a prokaryote. The operon is regulated by a repressor, which changes its shape when tryptophan binds to it. Which of the following statements explains the action of the repressor?  (1 point)
When tryptophan levels are high, it binds to the repressor, changing its shape so that it cannot bind to the operator region.
When tryptophan levels are low, it binds to the repressor, changing its shape so that it cannot bi