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Mic 205 Exam 3 Daydiff/143 Questions with Answers $12.49   Add to cart

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Mic 205 Exam 3 Daydiff/143 Questions with Answers

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Mic 205 Exam 3 Daydiff/143 Questions with Answers

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  • September 27, 2024
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Mic 205 Exam 3 Daydiff/143
Questions with Answers
-minuscule, acellular infectious agents carrying DNA or RNA
-obligate intracellular parasites - - viruses

- F - - T/F viruses have cytoplasmic membranes, cytosol, and organelles

- virons - - when viruses are outside their host they are called what?

- - possess a protein coat (capsid) that surrounds and protects the nucleic
acid (viral genome) - - what is the structure of a virus?

- -shed their protein capsids
-exist as naked nucleic acid - - when inside their cellular hosts viruses do
what?

- - genetic material
- capsid - - what are required features of a virus?

- - envelope
- appendages
- enzymes - - what are optional features of a virus?

- a phospholipid bilayer and proteins - - the viral envelope is composed of
what?

- glycoprotein spikes - - some viral proteins have ___________ that are
encoded by the viral genome

- viral replication - - viral envelopes are acquired from host cell during?

- narrow - - do viruses have a broad or narrow host range?

- - type of genetic material
- host range
- size and shape of virus
- structure of capsid
- if they have a envelope - - how are viruses categorized?

- destructive mechanism that results in death and lysis of host cell - - lytic
replication

, - extended period of dormancy caused by certain bacteriophages - -
lysogenic replication

- temporary or permanent dormancy elicited by certain types of animal
viruses - - latent replication

- 1. attachment
2. entry
3. synthesis
4. assembly
5. release - - lytic replication cycle

- perios of time required to complete entire lytic process - - burst time

- total number of new virions - - burst size

- 1. attachment
2. entry
3. integration
4. synthesis
5. assembly
6. release - - lysogentic replication cycle

- - presence of envelopes around some animal viruses
- eukaryotic nature of animal cells
- lack of cell wall - - what is the differences between lytic replication in
bacteriophages and animal viruses?

- T - - T/F sniaml viruses do not have tails/tail fibers like many
bacteriophages

- - direct (nonenveloped)
- membrane fusion (enveloped)
- phagocytosis (enveloped) - - what are the three mechanisms of entry?

- types of penetration - -

- nucleus, cytoplasm - - most DNA viruses assemble in and are released
from the ______ into _______

- cytoplasm - - most RNA viruses develops solely in the ______

- cause persistent infections as they are released slowly from the host cell;
budding one-by-one - - enveloped viruses

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