15973760
Questão 1
Questão
Which of the following does a virus lack? Select all that apply.
Responda
-
ribosomes
-
metabolic processes
-
nucleic acid
-
glycoprotein
Questão 2
Questão
The envelope of a virus is derived from the host’s
Responda
-
nucleic acids
-
membrane structures
-
cytoplasm
-
genome
Questão 3
Questão
What is another name for a nonenveloped virus?
Responda
-
enveloped virus
-
provirus
-
naked virus
-
latent virus
Questão 4
Questão
Scientists have identified viruses that are able to infect fungal cells.
Responda
- True
- False
Questão 5
Questão
Which of the following leads to the destruction of the host cells?
Responda
-
lysogenic cycle
-
lytic cycle
-
prophage
-
temperate phage
Questão 6
Questão
A virus obtains its envelope during which of the following phases?
Responda
-
attachment
-
penetration
-
assembly
-
release
Questão 7
Questão
Which of the following components is brought into a cell by HIV?
Responda
-
a DNA-dependent DNA polymerase
-
RNA polymerase
-
ribosome
-
reverse transcriptase
Questão 8
Questão
A positive-strand RNA virus:
Responda
-
must first be converted to a mRNA before it can be translated.
-
can be used directly to translate viral proteins.
-
will be degraded by host enzymes.
-
is not recognized by host ribosomes.
Questão 9
Questão
What is the name for the transfer of genetic information from one bacterium to another bacterium by a phage?
Responda
-
transduction
-
penetration
-
excision
-
translation
Questão 10
Questão
or lytic viruses, [blank_start]eclipse[blank_end] is a phase during a viral growth curve when the virus is not detected.
Responda
-
eclipse
Questão 11
Questão
Which of these infectious agents do not have nucleic acid?
Responda
-
virions
-
viruses
-
bacteria
-
prions
Questão 12
Questão
Which of the following is true of prions?
Responda
-
They can be inactivated by boiling at 100 °C
-
They contain a capsid.
-
They are a rogue form of protein, PrP.
-
They can be reliably inactivated by an autoclave.
Questão 13
Questão
Which of the following statements about virus structure is true?
Responda
-
All viruses are encased in a viral membrane.
-
The capsomere is made up of small protein subunits called capsids.
-
DNA is the genetic material in all viruses.
-
Glycoproteins help the virus attach to the host cell.
Questão 14
Questão
Which statement is true?
Responda
-
A virion contains DNA and RNA.
-
Viruses are acellular.
-
Viruses replicate outside of the cell.
-
Most viruses are easily visualized with a light microscope.
Questão 15
Questão
Which is true of DNA viruses?
Responda
-
They use the host cell’s machinery to produce new copies of their genome.
-
They all have envelopes.
-
They are the only kind of viruses that can cause cancer.
-
They are not important plant pathogens.
Questão 16
Questão
Which of the following is not associated with prions?
Responda
-
replicating shapes
-
mad cow disease
-
DNA
-
toxic proteins
Questão 17
Questão
Which statement is true of viroids?
Responda
-
They are single-stranded RNA particles.
-
They reproduce only outside of the cell.
-
They produce proteins.
-
They affect both plants and animals.
Questão 18
Questão
Which is NOT a Baltimore classification of viruses?
Responda
-
positive-strand DNA
-
negative-strand DNA
-
positive-strand RNA
-
negative-strand RNA
Questão 19
Questão
Group I uses its own or host DNA polymerases for replication.
Responda
- True
- False
Questão 20
Questão
Group I: [blank_start]Double stranded DNA[blank_end]
Group II: [blank_start]Single stranded DNA[blank_end]
Group III: [blank_start]Double stranded RNA[blank_end]
Group IV: [blank_start]Positive single stranded RNA[blank_end]
Group V: [blank_start]Negative single stranded RNA[blank_end]
Group VI: [blank_start]Retrovirus[blank_end]
Group VII: [blank_start]Double stranded DNA pararetrovirus[blank_end]
Responda
-
Double stranded DNA
-
Single stranded DNA
-
Double stranded RNA
-
Positive single stranded RNA
-
Negative single stranded RNA
-
Retrovirus
-
Double stranded DNA pararetrovirus
Questão 21
Questão
Spiders carry the Bluetongue virus into barns and fields. The virus causes high morbidity and mortality in ruminants. The Bluetongue virus is an orbivirus, which is part of the Reovirus family.
What is the Baltimore classification for Bluetongue virus?
Responda
-
Group I
-
Group II
-
Group III
-
Group IV
-
Group V
Questão 22
Questão
Spiders carry the Bluetongue virus into barns and fields. The virus causes high morbidity and mortality in ruminants. The Bluetongue virus is an orbivirus, which is part of the Reovirus family.
What type of genome does the Bluetongue virus have?
Responda
-
Single-stranded DNA
-
Double-stranded DNA
-
Single-stranded RNA
-
Double-stranded RNA
Questão 23
Questão
What’s the difference between a virion and a viroid?
Responda
-
There’s no difference. The terms are synonymous
-
A viroid is bigger than a virion
-
A viroid only infects plants while a virion only infects animals
-
A viroid only has a capsid and no genetic material
-
A viroid only has RNA and no capsid
Quer criar seus próprios Quizzes gratuitos com a GoConqr? Saiba mais.