Which of the Following Statements Regarding Igα and Igβ Proteins

question 43

Multiple Choice

Which of the following statements regarding Igα and Igβ proteins are correct? (Select all that apply.)

• A)They associate with all isotypes of antibodies on the cell membrane.
• B)They are not required to form the fully functional B-cell receptor.
• C)They facilitate signal transduction through their long cytoplasmic tails.
• D)They are linked to one another by disulfide linkages.
• E)They are made by somatic rearrangement.

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Definitions:

Optimum Level

The most favorable point or degree at which the efficiency or effectiveness of a function or system is maximized.

MSB Curve

The Marginal Social Benefit curve, representing the additional benefit to society as a whole from consuming one more unit of a good.

MCA Curve

A term that could be mistaken but likely refers to the Marginal Cost Curve, which depicts the additional cost of producing one extra unit of output.

Marginal External Cost

The additional cost incurred by society as a whole due to one more unit of a good being produced, not accounted for by the producer.