Exam 13: Characterizing and Classifying Viruses, Viroids, and Prions

The virions shown in Figure 13.1 have a (complex/helical/polyhedral) capsid.

Which of the following is CORRECT regarding the viral envelope?

Bacteriophage release is a gradual process in which small numbers are released at a time.

Tumors invade other organs and tissues in a process called

Reverse transcriptase is associated with which of the following?

Naked capsid animal viruses are commonly released from the infected cell by ________, a process the host cell does not survive.

Plaque assays are used for

Which of the following virus families has a double-stranded RNA genome?

Viruses with -ssRNA require the activity of (DNA polymerase/reverse transcriptase/RNA-dependent RNA polymerase) for their replication.

Compare and contrast the ways in which animal, plant, and bacterial viruses gain entry into their host cells.

In what ways do viruses differ from other pathogens?

RNA viruses such as HIV require the activity of reverse (polymerase/transcriptase/transposase) to become proviruses.

The process known as ________ is a mechanism of release for enveloped viruses.

The outermost layer of a virion fulfills which of the following functions of the virus?

A scientist discovers a new virus associated with a cancer. She is able to culture it in the laboratory and begins to analyze it. What features will help her determine the virus' classification? How does this help her understand the virus' mechanism for causing cancer?

The genome of influenzavirus is

Continuous cell cultures are developed from (embryonic/haploid/neoplastic) cells.

A (colony/plaque/prophage) is a clear zone on a bacterial lawn where cells have been killed by the activity of a bacteriophage.

The process during viral infection known as "uncoating" involves the removal of the (capsid/envelope/matrix).

Which of the following infectious particles is most susceptible to damage?