In Griffith's Experiment, Why Were S-Type Cells Virulent and R-Type

question 124

Multiple Choice

In Griffith's experiment, why were S-type cells virulent and R-type cells not virulent?

• A) S-type cells contain the transforming substance, and R-type cells do not.
• B) S-type cells have DNA, and R-type cells do not.
• C) S-type cells have a protective smooth capsule, and R-type cells do not.
• D) S-type cells could not be killed by heat treatment, and R-type cells could.
• E) S-type cells were resistant to DNase treatment, and R-type cells were not.

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Definitions:

Acid-test Ratio

A stringent indicator of a company's short-term liquidity, calculated by dividing cash, marketable securities, and net receivables by current liabilities.

Receivables Turnover

A financial metric indicating how quickly a company collects on outstanding accounts receivable in a given period, calculated as net credit sales divided by average accounts receivable.

Debt Ratio

A financial ratio that compares the amount of a company's debt to its total assets, indicating the proportion of a company's assets that are financed through debt.

Cash Flow from Operations

The amount of cash a company generates through its regular business operations over a specific period.