B-Cell Development Has One Checkpoint to Determine If V-DJ Rearrangement

question 35

Multiple Choice

B-cell development has one checkpoint to determine if V-DJ rearrangement has produced a successful V_H-DJ_H combination that does not recognize self.If no successful combination is produced, then the B cell will undergo apoptosis.At what point of B-cell development does this checkpoint occur?

• A)Pre-pro-B cell
• B)Early pro-B cell
• C)Late pro-B cell
• D)Late pre-B cell
• E)Immature B cell

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Definitions:

Process Costing System

A cost accounting method used for homogeneous products, assigning costs based on departments or processes the products go through.

Processing Department

A specific area or segment of a manufacturing facility where a distinct process or series of activities is carried out.

Ending Inventory

At the conclusion of a financial cycle, the cost of products up for sale is figured out by taking the starting inventory, adding any acquisitions, and deducting the expense associated with the goods that have been sold.

Weighted-Average Method

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