Which of the Following Characteristics Correctly Describes Retroviruses

question 45

Multiple Choice

Which of the following characteristics correctly describes retroviruses?

• A) They are made up of only a single protein.
• B) They can only reproduce by infecting bacteria.
• C) They have a single-stranded DNA that acts as a template for DNA synthesis.
• D) They have a single-stranded RNA that acts as a template for DNA synthesis.

---

Definitions:

Purely Competitive Seller

A seller in a market that has many buyers and sellers, with all firms selling identical products and no barriers to entry.

Marginal Revenue

The boost in revenue experienced by a company when it sells an extra unit of its goods or services.

Purely Competitive Firm

A company that operates in a market where there are many sellers and buyers, the products are homogeneous, and there is free entry and exit from the market.

Vertical Axis

The y-axis in a graph, which typically shows the range of values for the variable measured.