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WorksheetsViruses - Chapter 18
Total questions: 13
Worksheet time: 7mins
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
What are prions?
Mobile segments of DNA
Viruses that invade bactera
Misfolded versions of normal brain protein
Tiny molecules of RNA that infect plants
Which option below is NOT an infectious prion found in humans?
Creutzfeldt-Jakob disease (CJD)
Scrapie
vCJD
Kuru
Which definition is associated with prions?
Slow acting, virtually indestructible infections proteins that cause brain disease in mammals. Can cause normal proteins to mutate or "misfold"
Circular RNA molecules that infect plants and disrupt their growth
