Which of the Following Statements Concerning B Cell Receptors (BCRs)

question 38

Multiple Choice

Which of the following statements concerning B cell receptors (BCRs) is FALSE?

• A) They are formed in response to an encounter with an antigen.
• B) They are complementary in shape to a specific antigenic determinant that they may or may not encounter.
• C) They are bound to the surface of B lymphocytes and have two antigen-binding sites.
• D) Each B lymphocyte is randomly generated with antibody variable regions that determine its BCR.
• E) Scientists estimate that each person forms at least 10¹¹ different types of B lymphocytes with distinct BCRs.

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Definitions:

Demand

The quantity of a product or service that consumers are willing and able to purchase at various price levels at a given time.

Substitutes

Goods or services that can be used in place of each other; when the price of one goes up, the demand for the other can increase.

Elastic Demands

A market situation where the quantity demanded of a good or service significantly changes in response to a change in price.

Quantity Demanded

The total amount of a good or service that consumers are willing and able to purchase at a given price within a specified time period.