Which Is/are True of Viruses

question 15

Multiple Choice

Which is/are true of viruses?

• A)They may suppress the production of MHC Class I protein.
• B)They may produce an MHC Class I mimic protein.
• C)They may prevent cell suicide.
• D)They may bind to MHC class II antigens.
• E)They may suppress the production of MHC Class I protein,they may produce an MHC Class I mimic protein,AND they may prevent cell suicide.

---

Definitions:

Break-Even Point

The level of sales at which total revenues equal total costs, resulting in no net loss or gain.

Sales Mix

The composition of a company’s product or service sales, showing the relative proportions of each product or service sold.

Net Income

The total revenue minus total expenses, indicating the profitability of a company over a specific period.

Contribution Margin Ratio

The ratio of Contribution Margin to Sales Revenue, measuring the percentage of each sales dollar available to cover fixed costs and profit.