Which of the Following Statements Are Fundamental to the Clonal

question 37

Multiple Choice

Which of the following statements are fundamental to the clonal selection theory of how the adaptive immune system functions?
I. Each lymphocyte has a unique membrane receptor that recognises one antigen.
II. When the lymphocyte binds an antigen, it is activated and begins dividing to form many identical copies of itself.
III. Cloned lymphocytes have slight differences and are selected by the spleen for removal if they do not bind an antigen.
IV. Cloned cells descend from an activated lymphocyte and persist even after the pathogen is eliminated.

• A) only I and III
• B) only II and IV
• C) only I, II, and IV
• D) only II, III, and IV

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Definitions:

Demand Curve

A graph showing the relationship between the price of a good or service and the quantity demanded, typically downward sloping, reflecting an inverse relationship.

Demand Curve

A graphical representation that shows the relationship between the price of a good and the quantity of that good consumers are willing to purchase at various prices.

Profit-Maximizing Output

The level of production at which a firm achieves the highest possible profit.

Antimacassars

Small pieces of cloth or paper placed over the backs or arms of chairs or sofas to protect them from grease or dirt.