A Good Example of a Product That Is Both Nonexcludable

question 87

Multiple Choice

A good example of a product that is both nonexcludable and nonrivalrous is

• A)natural gas.
• B)food.
• C)grazing land.
• D)public information.
• E)electricity.

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Definitions:

Epigenetics

The study of heritable changes in gene expression that occur without changes to the DNA sequence itself.

Genotype

The genetic makeup of an individual organism, encompassing all of its genes.

Phenotype

The set of observable characteristics of an individual resulting from the interaction of its genotype with the environment.

Carrier

A person whose genotype includes a gene that is not expressed in the phenotype. The carried gene occurs in half of the carrier’s gametes, and thus is passed on to half of the carrier’s children. If such a gene is inherited from both parents, the characteristic appears in the phenotype.