Which of the Following Is the Best Example of a Pure

question 111

Multiple Choice

Which of the following is the best example of a pure public good?

• A)Cable television
• B)A national park
• C)National defense
• D)Education

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Definitions:

Lac Operon

A regulatory mechanism in bacteria that controls the expression of enzymes involved in lactose metabolism.

Repressor

A protein that binds to specific DNA sequences, preventing the transcription of genetic information from DNA to mRNA.

Acetyl Groups

Organic functional groups consisting of a methyl group single-bonded to a carbonyl. The formula is CH3CO-, significant in metabolic processes.

Histones

Proteins that package and order the DNA into structural units called nucleosomes, playing a critical role in gene regulation.