A Treatment for Bacterial Infections from the Early 20th Century

question 89

Multiple Choice

A treatment for bacterial infections from the early 20th century has made a comeback; the use of bacterial viruses to eliminate bacterial infections. Which explanation most accurately describes the mechanism of action behind this treatment?

• A) A wide variety of bacteria cause a large percentage of human infections, producing much sickness and death.
• B) Viruses can infect bacteria, transferring pathogenic genes. The viral genes can then be suppressed, causing the bacteria to not replicate viruses.
• C) The attachment structures on the virus and the receptors on the host cells make for exquisite speci?city of viruses for particular bacterial species.
• D) Antibiotic resistance in humans is on the increase, so using a different kind of therapy is more bene?cial.

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Definitions:

Net Cash Flow

The difference between a company's cash inflows and outflows within a specified period.

Investing Activities

Financial transactions related to the acquisition or disposal of long-term assets and investments, considered part of the cash flow statement.

Equipment Purchase

The acquisition of machinery or office equipment, usually classified as a capital expense, to be used in the operations of a business.

Land Purchase

An acquisition of real estate property involving a one-time payment or installment payments, considered a long-term asset on the balance sheet.