Alfred Hershey and Martha Chase Examined Transformation Using Bacteriophage (Bacterial

question 37

Multiple Choice

Alfred Hershey and Martha Chase examined transformation using bacteriophage (bacterial DNA virus) and bacterial cells.If phage are labeled with radioactive sulfur and allowed to infect bacterial cells,the radioactive sulfur will be localized to:

• A)the inside of infected cells (in phage DNA).
• B)the outside of infected cells (in phage ghosts).
• C)in newly synthesized phage viruses in the host bacterial cell.
• D)No radioactivity will remain after infection.
• E)The sulfur will be metabolically consumed,and therefore the radioactivity will be destroyed.

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Definitions:

Machine Hours

Machine hours refer to the total time that a machine is operated during a specific period, often used as a basis for allocating manufacturing overhead costs in cost accounting.

Units of Production

A method of depreciation that allocates the cost of an asset over its useful life based on the number of units it produces.

Departmental Overhead Rates

Specific overhead rates calculated for each department within a company, facilitating more accurate cost allocation.

Direct Labor Hours

The total number of working hours spent by employees directly involved in the production of goods or services.