Answer:
Like the lac operon, the trp operon is a negative control mechanism. The lac operon responds to an inducer that causes the repressor to dissociate from the operator, derepressing the operon. The trp operon responds to a repressor protein that binds to two molecules of tryptophan.
The farther layers of earths crust
Valve created by soft palate keeps food out of nasal airway during swallowing
<span>I think the answer is A test cross can be used to: study how traits are inherited. </span>
