The Molecular Fragment on an Antigen Molecule That a Lymphocyte

question 16

Multiple Choice

The molecular fragment on an antigen molecule that a lymphocyte recognizes and responds to is called a/an

• A)epitope.
• B)hapten.
• C)antigen binding site.
• D)variable region.
• E)None of the choices are correct.

---

Definitions:

Degree of Operating Leverage (DOL)

A measure of how much a company's operating income will change in response to a change in sales, indicating the company's sensitivity to changes in business volume.

Total Contribution Margin

The difference between sales revenue and variable costs of production, indicating how much revenue contributes toward covering fixed costs and generating profit.

Pretax Income

The income a company generates before income taxes are deducted, also known as earnings before tax (EBT).

Variable Costing

An accounting method that only allocates variable costs to production, treating fixed costs as period costs that are charged to expense as they are incurred.