Class Switching

question 237

Multiple Choice

Class switching

• A) refers to a B cell changing the immunoglobulin class it synthesizes.
• B) involves deletion of part of the variable region gene cluster.
• C) refers to a B cell changing the order of V, D, and J regions.
• D) involves a B cell switching from making IgA to making IgM.
• E) changes the antigen specificity of a B cell.

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Definitions:

Average Cost Method

An inventory costing method that calculates the cost of goods sold and ending inventory based on the average cost of all similar items available during the period.

Cost Of Merchandise Sold

The total expense of buying and preparing merchandise for sale, including the cost of the goods themselves and any additional expenses related to their sale.

Gross Profit

The amount of money a company makes after deducting the costs associated with making and selling its products, or the costs associated with providing its services.

FIFO Perpetual

An accounting method where the first items placed in inventory are the first ones sold, continuously tracking inventory levels.