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Virus Pre-Test
Test Description: Questions taken/inspired from https://www.biologycorner.com/quiz/qz_virus.html
Instructions: Answer all questions to get your test result.
1) A virus consists of...
A
DNA or RNA and a protein coat
B
DNA or RNA and a cell membrane
C
DNA and RNA and a protein coat
D
proteins, cell membrane, and RNA
2) How do viruses reproduce?
A
By dividing through mitosis
B
By external fertilization
C
Through replication inside of a host cell
D
Through replication outside of a host cell
3) Which of the following is the smallest?
A
Eukaryote cell
B
Bacteriophage
C
Bacteria
D
Cell membrane protein
4) Retroviruses are a specific type of virus that...
A
have RNA and are able to perform reverse transcription.
B
only infect bacteria and archaea.
C
they are symmetrical.
D
can become dormant.
5) Vaccines can be used to prevent viral infection by...
A
preventing replication of the virus.
B
creating an immune response in the host.
C
destroying any viruses that enter into the host.
D
creating a blocking protein on the cell.
6) Antiviral drugs that are used after infection often prevent
A
uptake of the virus
B
cell division
C
immune system degradation
D
reinfection by other viruses
7) Why do some viruses seem to go away and then return later, like a cold sore?
A
Because the immune system has forgotten how to fight the virus.
B
Because the virus has entered the lysogenic cycle.
C
Because the virus has mutated.
D
Because the host has been infected by a different strain of the virus.
8) Why is it difficult to develop vaccines for retroviruses?
A
Because vaccines can only target blood-borne pathogens.
B
Because their small size allows them to evade immune systems.
C
Because the capsid of retroviruses is resistant.
D
Because RNA mutates more frequently than DNA.
9) Viruses are often named by...
A
where they were first discovered, who discovered it, and/or the animal that carries it.
B
the scientist who discovered it.
C
the animal that carries it.
D
where they were first discovered.
10) What happens after the virus has been taken up by the cell
A
It switches into infectious mode.
B
The virus begins to divide.
C
The virus starts creating proteins.
D
The viral capsid comes apart, releasing the virus's genetic material into the cell.
*select an answer for all questions
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