MIC 319 Exam 2 2025/2026 Exam
Questions with 100% Correct Answers |
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Class 1 - 🧠 ANSWER ✔✔Knowing the enemy: Virology
What makes a virus unique? - 🧠 ANSWER ✔✔they are infectious, obligate
intracellular parasites (cannot replicate on their own, they need a host)
- the way it infects (receptor to infect)
- it needs conducive environment (to replicate)
- its genetic makeup
What percentage of human DNA comes from viruses? - 🧠 ANSWER ✔✔8%
of human DNA comes from viruses
Why don't viruses we eat infect us? - 🧠 ANSWER ✔✔- they are dead
(usually get cooked and die)
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,- we do not have a receptor for them (Tropism = every virus has a special
molecule on their surface for infection) plant viruses cannot infect animals
and vice versa
- we have no survival habitat
What information do we get from physical measurement of virus particles? -
🧠 ANSWER ✔✔- the number of virus particles
- the shape of the virus
- the size of the virus
- hemagglutination
- viral enzymes
- electron microscopy
- nucleic acids
- serology
does *NOT* give infectivity (alive or dead) of virus
What happens when we eat plant viruses? - 🧠 ANSWER ✔✔Nothing
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, How many classes of viruses are there? - 🧠 ANSWER ✔✔there are 7
classes of viruses based on their nucleic acid and strandedness
- dsDNA
- gapped dsDNA
- SSDNA
- dsRNA
- SS (+) RNA
- SS (-) RNA
- SS (+) RNA with DNA intermediate
What are the biggest and smallest viruses? - 🧠 ANSWER ✔✔Smaller
viruses can be around 20 micrometers
- example: poliovirus (30 nm)
Larger viruses can be around 1 um
- example: mimivirus and pandora virus
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PRIVACY STATEMENT. ALL RIGHTS RESERVED
Questions with 100% Correct Answers |
Latest Update
Class 1 - 🧠 ANSWER ✔✔Knowing the enemy: Virology
What makes a virus unique? - 🧠 ANSWER ✔✔they are infectious, obligate
intracellular parasites (cannot replicate on their own, they need a host)
- the way it infects (receptor to infect)
- it needs conducive environment (to replicate)
- its genetic makeup
What percentage of human DNA comes from viruses? - 🧠 ANSWER ✔✔8%
of human DNA comes from viruses
Why don't viruses we eat infect us? - 🧠 ANSWER ✔✔- they are dead
(usually get cooked and die)
COPYRIGHT©BLAIRALISTERNEWTON 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
1
PRIVACY STATEMENT. ALL RIGHTS RESERVED
,- we do not have a receptor for them (Tropism = every virus has a special
molecule on their surface for infection) plant viruses cannot infect animals
and vice versa
- we have no survival habitat
What information do we get from physical measurement of virus particles? -
🧠 ANSWER ✔✔- the number of virus particles
- the shape of the virus
- the size of the virus
- hemagglutination
- viral enzymes
- electron microscopy
- nucleic acids
- serology
does *NOT* give infectivity (alive or dead) of virus
What happens when we eat plant viruses? - 🧠 ANSWER ✔✔Nothing
COPYRIGHT©BLAIRALISTERNEWTON 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
2
PRIVACY STATEMENT. ALL RIGHTS RESERVED
, How many classes of viruses are there? - 🧠 ANSWER ✔✔there are 7
classes of viruses based on their nucleic acid and strandedness
- dsDNA
- gapped dsDNA
- SSDNA
- dsRNA
- SS (+) RNA
- SS (-) RNA
- SS (+) RNA with DNA intermediate
What are the biggest and smallest viruses? - 🧠 ANSWER ✔✔Smaller
viruses can be around 20 micrometers
- example: poliovirus (30 nm)
Larger viruses can be around 1 um
- example: mimivirus and pandora virus
COPYRIGHT©BLAIRALISTERNEWTON 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
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PRIVACY STATEMENT. ALL RIGHTS RESERVED
