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You cut a plasmid with a restriction enzyme that cuts it into three pieces — one fragment is 240 base pairs, one fragment is 600 base pairs, and one fragment is 1200 base pairs.  You carry out electrophoresis of the digested sample.  Which of the fragments will be closest to the top of the gel where the sample was loaded?

Liver cells detoxify many poisons and drugs. A structure that would be important to this specialized function of liver cells is the ________. 

A monopolist produces 50 units where MR = MC. At 50 units, price is $40 and average total cost is $28. Profit equals:

A perfectly competitive wheat farmer sells output at $18 per bushel. The farmer’s marginal cost of the 100th bushel is $16 and marginal cost of the 101st bushel is $19. To maximize profit, the farmer should:

Two internet providers, FiberFast and MetroNet, must decide whether to invest in a costly speed upgrade this year. Their profit (in millions) is shown in the payoff matrix below.MetroNet: UpgradeMetroNet: DelayFiberFast: Upgrade9, 813, 4FiberFast: Delay5, 1011, 11Which outcome is the Nash equilibrium?

In long-run equilibrium, a firm in monopolistic competition produces at a level of output where:

A tomato grower in a perfectly competitive market has the following data at output 200 crates:Price = $9ATC = $8AVC = $6MC = $9Economic profit equals:

A firm has fixed cost of $120. Its total cost when producing 8 units is $200. What is the average variable cost at 8 units?

Which of the following would most likely shift a firm’s marginal cost curve upward?

A competitive firm faces price of $7. At every output level, average variable cost is above $8. The firm should: