Which of these genes is not a part of the lac operon?

a.) operator gene
b.) promoter gene
c.) repressor gene

Donald trump will plan to use his emergency powers to build the wall between the us and mexico, instead of shutting down the government again?

Profits are maximized when marginal revenue and marginal costs are a. set c. equal b. less than market price d. greater than market price

Ive been stuck on this question! which of the following statements about the economic consequences of the civil war is not accurate. a. inflation caused prices to rise by 80% in the north. b. because southern farms could not produce enough food for everyone in the south, the union navy allowed food shipments from britain. c. to pay for all of the food, supplies and armaments that were necessary for the union army, congress instituted an income tax. d. business bloomed in the north as factories and farms always had a market for the products.