Which of the Following Statements Concerning DNA,RNA,and Their Components Is

question 11

Multiple Choice

Which of the following statements concerning DNA,RNA,and their components is (are) not correct?

• A)Phosphoric acid has three dissociable OH groups which can also react with alcohols to form phosphoesters.
• B)Across the DNA helix,purine bases hydrogen bond only to other purine bases.
• C)The two substituted pyrimidines in DNA are cytosine and thymine.
• D)both B and C
• E)none of the above

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Definitions:

Consumer Surplus

The difference between what consumers are willing to pay for a good or service and what they actually pay, representing the benefit to consumers from participating in the market.

Utility

Utility refers to the total satisfaction received from consuming a good or service.

Diminishing Utility

The principle that as consumption of a good or service increases, the marginal utility derived from each additional unit decreases.

Marginal Utility

The additional satisfaction or benefit obtained from consuming one more unit of a good or service.