How is a provirus related to disease symptoms?         A-the provirus continually lyses cells, causing disease symptoms       B-the provirus periodically shifts to a lytic cycle, causing disease symptoms       C-the provirus can produce endospores during unfavorable times       D-the provirus secretes powerful toxins that make the host ill

Discuss the structures found in a typical virus.

What are retroviruses, and how are they different from otherviruses?

The illustration best describes: A dormant bacterial infection A dormant viral infection An active bacterial infection An active viral infection

Polyomavirus and Papillomavirus, which is NOT correct? are circular dsDNA are icosahedral capsid are non-enveloped contain DNA and RNA polymerase their fusion with the host cell doesn’t involve in uncoating genome replicate in cytoplasm None of the above Both D and F D, E, and F

What is meant when it is said that a virus is in an inactive state?

Place the stages of the viral life cycle in their correct order.   ____ Attachment ____ Lysis ____ Biosynthesis ____ Maturation ____ Penetration

what makes retrviruses unique?

Which of the following is a similarity between viruses of bacteria (bacteriophages) and viruses of algae?     These viruses will enter host cells by membrane fusion.     They infect host cells by injecting nucleic acid (i.e., capsid does not enter cell)     After replication in a host cell, the newly-assembled viruses will exit the cell by budding.     These viruses are taken into host cells by phagocytosis.

Name three characteristics of viruses.  Are viruses living or nonliving?  Defend your answer.