Two Antiparallel Strands of DNA Combine to Form a Double

question 46

Multiple Choice

Two antiparallel strands of DNA combine to form a double helix. The specific interactions that permit this phenomenon occur by way of bonds between .

• A) ionic; deoxyriboses
• B) hydrogen; deoxyriboses
• C) ionic; phosphate groups
• D) hydrogen; nitrogenous bases
• E) ionic; nitrogenous bases

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Definitions:

Mark-up

A surplus included in the goods' purchase price to compensate for overhead costs and gain, determining the final sales price.

Cost

The cost involved in buying an item or the financial outlay needed to produce a good or service.

Mark-up

The amount added to the cost price of goods to cover overhead and profit, expressed as a percentage of the cost.

Markdown

A reduction from the original or listed price of a good or service, often used to stimulate sales or clear out inventory.