McGraw-Hill Online Learning Center Test

McGraw-Hill Online Learning Center Test


1. Review the image and answer the following questions.

Study this diagram. What does the Fraenkel-Conrat experiment show?

A. It shows that many viruses can recombine.
B. It illustrates the fact that proteins are necessary for infection by RNA viruses.
C. It shows that RNA can be transferred to a host cell and more RNA viruses formed within that cell.
D. It shows that genetic recombination occurs during reproduction of viruses.


2. How do RNA viruses, such as those shown here, manage to replicate inside host cells?

A. They employ RNA-dependent RNA polymerases, present in most plants to replicate viral RNA.
B. They use a virus-specific RNA replicase.
C. Replication can occur using a viral RNA polymerase.
D. Any of these are possible.
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