The Following Questions Are Based on the 15 Molecules Illustrated

question 109

Multiple Choice

The following questions are based on the 15 molecules illustrated in Figure 5.8. Each molecule may be used once, more than once, or not at all.

Figure 5.8
-Which of the following molecules could be joined together by a phosphodiester type of covalent bond?

• A) 3 and 4
• B) 3 and 8
• C) 6 and 15
• D) 11 and 12
• E) 11 and 13

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Definitions:

Meander Scars

Erosional features left in the landscape by the remnants of ancient river meanders.

Oxbow Lakes

Crescent-shaped lakes formed when a river meander is cut off from the main stream.

Cutbank

The steep or vertical bank on the outside bend of a river or stream, eroded by flowing water.

Braided Streams

Networks of river channels that are separated by small, often temporary, islands called braid bars, typically found in environments with high sediment loads.