Know parts and functions of parts of viruses; What is the size of viruses?
Describe the structure of a viral particle. What are prions?
Why are ribosomes important in the replication of DNA viruses?
Describe the general morphological features of a virus and speculate as to the reasons that they are so alike.
Which virus mutates more often: one using DNA for its genes or one using RNA for its genes?
Briefly describe, at least 2, fundamental characteristics of living cells that are missing in viruses.
The base composition of a newly discovered virus is 32.1% G, 16.9% A, 18.0% T, 0% U, and 33.0% C. The viral genome is resistant to exonucleases but is susceptible to endonucleases. What is the likely genome composition of the virus?A. Circular, double-stranded DNAB. Circular, single-stranded DNAC. Linear double-stranded RNAD. Circular, double-stranded RNAE. Linear single-stranded RNAF. Linear single-stranded DNA
The base composition ofa newly discovered virus is 32.1% G, 17.8% A, 0%T, 28% U, and 22.1% C. This viral genome is susceptible to exonucleases and endonucleases. What is the likely genome computation for thie virus?A. Linear, single-stranded DNAB. Circular, double-stranded RNAC. Circular, single-stranded DNAD. Linear, single stranded RNAE. Linear, double-stranded RNAF. Circular, double-stranded DNA
How is a helical virus different from an icosahedral virus?
Describe the lytic and lysogenic cycles of viral replication.
What is the role of the core proteins that some DNA viruses package along with their genome?
Describe the three required features present in all viruses. Include the name, function, and macromolecule composition of each structure involved.
What two types of shapes/symmetry are recognized in viruses? Describe (or give an example) to illustrate the major differences between the following: a "naked virus", an enveloped virus, and a complex virus.
What do virions of retroviruses contain that other animal virions do not?A. a double stranded DNA genomeB. a single stranded DNA genomeC. a reverse transcriptase enzymeD. a lysozyme enzymeE. both C and D
What is the name of a virus' protein shell?
In general, animal viruses differ from bacterial viruses in that _______.A. the entire virion of an animal virus enters the host cell.B. only the viral DNA of the virion enters the animal host cell.C. animal viruses are never enveloped.D. all animal viruses are lyticE. None of the above.
How do virus cross plasma membrane?
Discuss why viruses are considered infectious "particles" on the borderline between living and non-living.