Which of the Following Is Not True of the Antigen-Independent

question 23

Multiple Choice

Which of the following is not true of the antigen-independent period of lymphocyte development?

• A)Many lymphocytes with different specificities are formed.
• B)Random genetic rearrangements occur to produce different surface protein receptors.
• C)Lymphocytes with specificity for self are destroyed.
• D)Lymphocytes form from stem cells in the bone marrow.
• E)Mature lymphocytes populate lymphatic organs and encounter antigens.

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Definitions:

Fixed Expenses

Expenses that do not fluctuate with changes in production level or sales volume, such as lease payments, insurance, and property taxes.

Margin of Safety

The difference between actual or expected sales and the break-even sales, measured to assess the risk of incurring losses.

Contribution Margin

The amount by which sales revenue exceeds variable costs, indicating how much contributes to covering fixed costs and generating profit.

Capital Intensive

Describes industries or businesses that require large amounts of investment in heavy machinery, equipment, or other capital assets to produce goods or services.