The Following Are Two Genotypes of the Lactose Operon in E

question 34

Multiple Choice

The following are two genotypes of the lactose operon in E. coli:
1) I⁺ P⁺ O^c Z⁺ Y⁺
"2) I^- P⁺ O⁺ Z⁺ Y⁺
Do either of these genotypes produce -galactosidase and permease in the absence of lactose?"

• A)Both produce  -galactosidase and permease.
• B)Neither produces  -galactosidase and permease.
• C)The first one produces  -galactosidase and permease; the second does not.
• D)The first one does not produce  -galactosidase and permease; the second does.

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Definitions:

Nondiscriminating Monopolist

A monopolist that charges all consumers the same price for its product or service, regardless of the market segment.

Profit-Maximizing

The process or strategy of adjusting production and pricing to achieve the highest possible profit.

Socially Optimal Price

The price of a product that results in the most efficient allocation of an economy's resources and that is equal to the marginal cost of the product.

Marginal Cost

The expenses associated with creating an extra unit of a good or service.