Base Pairing Between Guanine and Cytosine Is More Stable Than

question 36

Multiple Choice

Base pairing between guanine and cytosine is more stable than base pairing between adenine and thymine.Which of the following best explains why?

• A)G/C base pairing involves two large purine bases,while A/T base pairing involves two smaller pyrimidine bases.
• B)G/C base pairing involves three hydrogen bonds,while A/T base pairing involves only two hydrogen bonds.
• C)G/C base pairs are smaller and more compact than A/T base pairs.
• D)G/C base pairs are more widely separated and not as crowded as A/T base pairs.
• E)G/C base pairs appear in DNA and RNA,while A/T base pairs appear only in DNA.

Identify the characteristics of circulatory systems in different organisms, including open and closed systems.

Differentiate between the erythrocytes of mammals and those of other vertebrates.

Recognize the role of immune cells, including their involvement in producing antibodies and mediating allergic responses.

Understand the components and functions of vertebrate circulatory systems.

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Earnings Per Share

A company's profit divided by its number of outstanding shares, indicating the profitability of the company on a per-share basis.

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The profit a company reports after all operational expenses and tax obligations are subtracted from its revenue.

Cash Flow

The total interchange of cash and assets comparable to cash, circulating in and out of a commercial venture.