Which One of the Following Statements About the Reverse Transcriptases

question 15

Multiple Choice

Which one of the following statements about the reverse transcriptases of retroviruses and the RNA replicases of other single-stranded RNA viruses,such as R17 and influenza virus,is correct?

• A)Both enzymes can synthesize either RNA or DNA from an RNA template strand.
• B)Both enzymes can utilize DNA in addition to RNA as a template strand.
• C)Both enzymes carry the specificity for the RNA of their own virus.
• D)Both enzymes have error rates similar to those of cellular RNA polymerases.
• E)Both enzymes require host-encoded subunits for their replication function.

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Definitions:

Variable Cost

Costs that vary directly with the level of production or service delivery.

Total Cost

The sum of all costs incurred by a business to produce a specific amount of goods or services, including fixed and variable costs.

Average Variable Cost

The total variable costs (costs that change with the level of output) of production divided by the quantity of output produced.

Marginal Cost

The financial outlay for producing an incremental unit of a product or service.