A Wild-Type Organism and a Genetic Variant Both Have a Gene

question 75

Multiple Choice

A wild-type organism and a genetic variant both have a gene encoding a receptor producing a chemotactic response to metabolite A. The genetic variant has a mutation in a regulatory gene for expression of the receptor. Which of the following statements with respect to the receptor is CORRECT?

• A) The organisms have the same receptor genotype but different phenotypes.
• B) The organisms have different genetic sequences for the receptor.
• C) The phenotypes of both organisms are the same, but the genotypes differ.
• D) The genotypes and phenotypes of both organisms are the same.
• E) The answer cannot be determined from the information provided.

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Definitions:

Efficient Allocation

The distribution of resources in a way that maximizes the net benefit received by an economy.

Allocative Efficiency

A state of the economy where resources are apportioned in a way that maximizes the overall benefit to society.

Productive Efficiency

A state where an economy or entity cannot produce more of one good without producing less of another, utilizing all resources in the best possible way without waste.

Economic Profit

The difference between total revenue and the total opportunity costs (both explicit and implicit) of all resources used.