The Backbone of a Nucleic Acid Molecule Consists of

question 5

Multiple Choice

The backbone of a nucleic acid molecule consists of

• A)alternating sugar and phosphate groups linked by phosphate ester bonds.
• B)alternating sugar and nitrogen base groups linked by amide bonds.
• C)alternating nitrogen bases and phosphate groups linked by amide bonds and strengthened by hydrogen bonds.
• D)sugar molecules bonded from the #3 carbon of one molecule to the #5 carbon of the other by glycosidic linkages.
• E)complementary bases joined by hydrogen bonds.

---

Definitions:

Variable Costs

Costs that change in proportion to the level of activity of a business, such as material and labor costs.

Break-even Point

The point at which total revenues equal total costs, resulting in neither profit nor loss, indicating the minimum sales volume necessary to cover all costs.

Salary Increases

The upward adjustment or rise in an individual’s or group's pay rate, typically as a result of performance reviews, promotions, or inflation adjustments.

Break-even Point

The point at which total costs equal total revenue, indicating no profit or loss.