What Was the Initial Explanation for the Sensitivity of Cancer

question 28

Multiple Choice

What was the initial explanation for the sensitivity of cancer cells to radiation therapy and chemotherapy as compared to normal cells?

• A)Cancer cells are sensitive to radiation and chemotherapy because they divide more rapidly.
• B)Cancer cells are sensitive to radiation and chemotherapy because once they sustain genetic damage, they continue through the cell cycle while repair is incomplete and that triggers metastasis.
• C)Cancer cells are sensitive to radiation and chemotherapy because they divide more slowly.
• D)Cancer cells are sensitive to radiation and chemotherapy because they will not undergo apoptosis.

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Definitions:

Net Operating Income

The total profit of a company after operating expenses are subtracted from total revenue, but before deducting taxes and interest.

Margin

The difference between the sales price of a product and its cost of production, often expressed as a percentage of the sales price.

Turnover

The rate at which inventory or assets are sold or replaced in a given period, or the rate employees leave and are replaced in a company.

Return On Investment

A performance measure used to evaluate the efficiency of an investment or to compare the efficiency of multiple investments, calculated as a ratio or percentage of the return on an investment relative to its cost.