Which of the Following Is True About the Clonal Selection

question 29

Multiple Choice

Which of the following is true about the clonal selection theory?

• A)An antigen selects certain B cells to produce a clone of plasma cells.
• B)An antibody stimulates the multiplication of B cell antigens against it.
• C)T cells select those B cells that should produce antibodies,regardless of antigens.
• D)T cells suppress all those B cells except the ones that should multiply and divide.
• E)One B cell will give rise to plasma cells that produce antibodies against several antigens.

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Definitions:

Du Pont Identity

A financial analysis framework that breaks down return on equity into three components: profit margin, asset turnover, and financial leverage, highlighting how these factors affect a company's overall financial performance.

Return On Equity

An assessment of a firm's efficiency in producing profit from its shareholders' investments.

Financial Leverage

The use of borrowed funds ("debt") to amplify returns from an investment or project.

Price Earnings Ratio

A financial metric comparing the current price of a company's stock to its earnings per share to assess whether the stock is undervalued or overvalued.