Although Our Understanding of the Kinetics of T-Cell Activation Has

question 41

Multiple Choice

Although our understanding of the kinetics of T-cell activation has changed over time, we now believe that

• A)antigen availability does not affect T-cell/APC interactions.
• B)antigen quantity does not affect T-cell/APC interactions.
• C)optimal proliferation of helper T cells requires only relatively brief APC exposure.
• D)optimal proliferation of helper T cells requires several hours of APC exposure.
• E)dendritic cell activation does not affect T-cell activation.

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Definitions:

Required Return

The minimum expected yield by investors for providing capital to a company or project.

Betas

A measure of the volatility, or systematic risk, of a security or portfolio in comparison to the market as a whole, often used in the Capital Asset Pricing Model.

Standard Deviation

A statistical measure of variance or dispersion in a set of values, commonly used to assess investment risk.

Expected Return

The anticipated amount of profit or loss an investment is projected to yield based on historical or estimated future performance.