During a Primary Immune Response IgM Sometimes Switches to IgE

question 3

Multiple Choice

During a primary immune response IgM sometimes switches to IgE.Which of the following best describes the consequence of this early switch?

• A)The B cell would switch again to IgG3.
• B)The B cell would remain in the germinal center but would not differentiate into a plasma cell.
• C)The B cell would die by apoptosis.
• D)The IgE produced would have low affinity for antigen.

---

Definitions:

Mark-up

Elevating the base cost of merchandise to reimburse for overhead activities and profit.

Markdown

A reduction from the original price of an item to increase its attractiveness to buyers.

Overhead

The ongoing business expenses not directly attributed to creating a product or service.

Operating Profit

The profit earned from a firm's normal business operations, excluding deductions of taxes and interest.