How Do Memory Cells Develop

question 28

Multiple Choice

How do memory cells develop?

• A)Upon reinfection, memory centers in the brain send signals to the bone marrow to induce T-cell and B-cell differentiation.
• B)T cells and B cells from the primary response persist and become reactivated.
• C)Innate cells are trained to activate new T cells and B cells more quickly with secondary infection.
• D)T cells and B cells from the primary infection slowly mutate their receptors over time, priming themselves for the secondary response.
• E)Innate cells modify their cell surface receptors to prepare for reinfection.

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Definitions:

Identical Products

Goods that are exactly the same in every feature, quality, and specification, allowing them to be interchangeable.

Absolute Purchasing Power Parity

A theory that suggests that in the absence of trade barriers and transportation costs, identical goods will have the same price in different countries when prices are expressed in a common currency.

Covered Interest Arbitrage

A financial strategy to profit from the difference in interest rates between two countries while hedging against exchange rate risks.

Spot Rate

The current market price at which a particular asset, such as a currency, commodity, or security, can be bought or sold for immediate delivery.