What Is the Function of the Enzyme Topoisomerase in DNA

question 60

Multiple Choice

What is the function of the enzyme topoisomerase in DNA replication?

• A) relieving strain in the DNA ahead of the replication fork caused by the untwisting of the double helix
• B) elongating new DNA at a replication fork by adding nucleotides to the existing chain
• C) reattaching the hydrogen bonds between the base pairs in the double helix
• D) building RNA primers using the parental DNA strand as a template

---

Definitions:

Absorption Costing

A cost accounting methodology that absorbs all production costs, like direct materials, direct labor, and overhead expenses whether variable or fixed, into the final cost of a product.

Variable Costing

A costing method that includes only the variable manufacturing costs (direct materials, direct labor, and variable manufacturing overhead) in product costs.

Unit Product Cost

The total cost (both variable and fixed) to produce a single unit of product.

Contribution Format

A type of income statement that separates variable costs from fixed costs to calculate a company's contribution margin.