Viruses - Chapter 18

What is correct name for 'A'?

• Tail sheath

• Tail fiber

• Head

• Capsid

What is correct order of the phases of the Lytic Cycle?

• Entry, Attachment, Self-Assembly, Synthesis, Release

• Attachment, Entry, Synthesis, Self-Assembly, Release

• Attachment, Synthesis, Self-Assembly, Release, Entry

• Synthesis, Self-Assembly, Entry, Release, Attachment

What is one way that a lysogenic infection differs from a lytic infection?

• A lysogenic virus can remain in the host DNA for a longer period without becoming active.

• A lysogenic virus does not act on bacteria as a lytic virus does.

• A lysogenic virus contains RNA instead of DNA.

• A lysogenic virus directs the production of new viruses right away.

What is shown here?

• Lysogenic Cycle

• Binary Fision

• Conjugation

• Lytic Cycle

What is shown here?

• Phagocytosis

• Lytic Cycle

• Lysogenic Cycle

• Formation of Antibodies

Which one of these are NOT a double-stranded DNA virus?

• Adenovirus

• Parvovirus

• Papillomavirus

• Herpesvirus

Which ssRNA virus below does NOT serve as a template for mRNA synthesis?

• Retrovirus

• Filovirus

• Orthomyxovirus

• Rhabdovirus

By using the image from above, what is the first step of Retrovirus replication?

• Transcription of retroviral DNA to make viral RNA genome copies and viral mRNA

• Entry by fusion of envelope with cell membrane at sites of specific receptors

• Uncoating of virion to release ssRNA; genome and virus-specific enzymes remain in virus core

• Budding of enveloped virions and release from the cell

How do retroviruses replicate their genetic material?

• Semi-conservative replication

• Conservative replication

• Reverse transcription

Prions are infections

• True

• False