Activation of Prophages to Lytic Cycle Prophages can be activated into viral replication and enter the lytic cycle.

Infectious Proteins Infectious protein particles are called _______.

A negative-sense RNA virus ________.

Viral Genome Configurations Viral nucleic acids include which of the following?

Virus Shapes Helical and icosahedral are terms used to describe the shapes of a virus ______.

Discovery and Knowledge of Viruses Viruses mutate and some have not been discovered.

Attachment of Bacteriophages What structures are used by bacteriophages to attach to host cell receptors?

Viruses Are Obligate Parasites Viruses are unable to multiply outside of a host cell.

Visualizing Viral Infection Visible, clear, well-defined patches in a monolayer of virus-infected cells in a culture are called _______.

Purposes of Viral Cultivation Select the three choices that are the primary purposes of cultivating viruses.