Acertain strain of e. coli is constitutive for the enzymes for lactose metabolism. on an f' plasmid you have the choice of adding one (but only one) element of the lac system to make the bacteria a merodiploid for that element. assume the original e. coli has wild-type structural loci. if your goal is to determine whether the lac operon is constitutive because of a mutant regulator or because of a mutant operator, which one wild-type element of the lac operon would you add using sexduction? a. operator region b. regulator (repressor) c. gene promoter region d. structural genes

Which one of the following is a characteristic of a jit partnership? a. frequent deliveries in large lot quantities b. removal of incoming inspection c. third-party logistics never used d. maximal product specifications imposed on supplier e. active pursuit of vertical integration

Lavage rapide is a canadian company that owns and operates a large automatic car wash facility near montreal. the following table provides data concerning the company’s costs: fixed cost per month cost per car washed cleaning supplies $ 0.70 electricity $ 1,400 $ 0.07 maintenance $ 0.15 wages and salaries $ 4,900 $ 0.30 depreciation $ 8,300 rent $ 1,900 administrative expenses $ 1,400 $ 0.03 for example, electricity costs are $1,400 per month plus $0.07 per car washed. the company expects to wash 8,000 cars in august and to collect an average of $6.50 per car washed. the actual operating results for august appear below. lavage rapide income statement for the month ended august 31 actual cars washed 8,100 revenue $ 54,100 expenses: cleaning supplies 6,100 electricity 1,930 maintenance 1,440 wages and salaries 7,660 depreciation 8,300 rent 2,100 administrative expenses 1,540 total expense 29,070 net operating income $ 25,030 required: calculate the company's revenue and spending variances for august.

Suppose that in an economy the structural unemployment rate is 2.2 percent, the natural unemployment rate is 5.3 percent, and the cyclical unemployment rate is 2 percent. the frictional unemployment rate is percent and the actual unemployment rate (in this economy) is percent.