specific viro

Question 1

Retroviruses

a. cause cell-associated infections.
b. are extremely resistant in the environment.
c. infect only mammals.
d. are mostly zoonotic

Answer 1

cause cell-associated infections

Question 2

Astroviruses

a. are sensitive to low pH.
b. cause splenomegaly and hepatomegaly in chicken.
c. may cause disease in human.
d. are fish pathogens

Answer 2

c. may cause disease in human

Question 3

The classical swine fever virus is transmitted by ticks.

a. True
b. Fals

Answer 3

b. false

Question 4

The parrot proventricular dilatation disease virus

a. has a segmented genome.
b. belongs to the Bunyavirales order.
c. belongs to the Bornaviridae family.
d. belongs to the Arenaviridae family

Answer 4

c. belongs to the bornaviridae family

Question 5

. The rhabdovirus genome is segmented.

a. True
b. False

Answer 5

b. False

Question 6

The arenavirus virion contains ribosomes.

a. False
b. True

Answer 6

b. true

Question 7

The rabies virus

a. does not cause viraemia.
b. is an arbovirus.
c. is a weak antigen.
d. cause strong CPE in cell culture.

Answer 7

a. does not cause viraemia

Question 8

Picornaviruses use reverse transcriptase enzyme for
their multiplication.
a. False
b. True

Answer 8

a. False

Question 9

Prions are resistant to heat treatment

a. True
b. False

Answer 9

a. true

Question 10

Reo- and birnaviruses

a. have a segmented genome.
b. are enveloped.
c. have binal symmetry.
d. use cellular transcriptase for the multiplication

Answer 10

a. have a segmented genome

Question 11

. The maintaining hosts of the Marburg virus are

a. African rodent species.
b. bats.
c. mosquitoes.
d. ticks

Answer 11

b. bats

Question 12

Coronaviruses are sensitive to detergents.

a. False
b. True

Answer 12

b. True

Question 13

The genome of astroviruses is ambisense.

a. False
b. True

Answer 13

a. false

Question 14

Filoviruses have helical capsid.

a. True
b. False

Answer 14

a. true

Question 15

Zoonotic viruses can be found in the

a. Birnaviridae family.
b. Circoviridae family.
c. Polyomaviridae family.
d. Togaviridae family

Answer 15

d. togaviridae family

Question 16

Corona- and arteriviruses
a. cause intranuclear inclusion bodies.
Only Arena
+
Bunya ambisense
b. cause notifiable diseases.
c. may infect fish.
d. are transmitted by insect vectors

Answer 16

b. cause notifiable diseases

Question 17

Which statement is true?

a. Mad cow syndrome is a notifiable disease.
b. Prions cause rash and fever.
c. All bacteriophages have binal symmetry.
d. Viroids consist only of proteins.

Answer 17

a. mad cow syndrome is a notifiable disease

Question 18

Toga- and flaviviruses

a. have -ssRNA genome.
b. have helical capsid.
c. are enveloped.

Answer 18

c. are enveloped

Question 19

Avulaviruses cause disease in birds.

a. False
b. True

Answer 19

b. true

Question 20

The variola virus is present worldwide.

a. True
b. False

Answer 20

b. false

Question 21

Arteriviruses cause disease mostly in birds.

a. True
b. False

Answer 21

b. false

Question 22

Some reoviruses are transmitted by insect vectors.

a. True
b. False

Answer 22

a. true

Question 23

Which virus uses reverse transcriptase for its
multiplication?
a. . Hepatitis A virus.
b. . Hepatitis E virus.
c. . Hepatitis C virus.
d. . Hepatitis B virus

Answer 23

d. hepatitis B virus

Question 24

The symmetry of caliciviruses is pleomorphic.

a. True
b. False

Answer 24

b. false

Question 25

Autovaccines are used against papillomaviruses. a. True b. False

Answer 25

a. true

Question 26

The bornavirus genome is ambisense. a. True b. False

Answer 26

b. false

Question 27

Which statement is true? a. Orthomyxoviruses infect only terrestrial animals. b. The mutation rate of orthomyxoviruses is very low. c. Some orthomyxoviruses are arboviruses. d. Orthomyxoviruses cause myxomatosis in rabbits

Answer 27

c. some orthomyxoviruses are arboviruses

Question 28

Influenza B and C viruses cause disease mainly in human. a. True b. False

Answer 28

a. true

Question 29

Parvo- and circoviruses cannot be propagated in vitro. ↳ parrot circo does a. True b. False

Answer 29

b. false

Question 30

The African swine fever virus causes intracytoplasmic inclusion bodies. a. False b. True

Answer 30

b. true

Question 31

Picorna- and caliciviruses a. are usually euryxen. b. are good antigens. c. are usually less resistant in the environment. d. have a dsRNA genome

Answer 31

b. are good antigens

Question 32

0. In the Picornavirales order, we can find honeybee pathogen viruses. a. True b. False

Answer 32

a.true

Question 33

The Crimean-Congo haemorrhagic fever virus is transmitted by a. Mosquitoes b. Ticks c. Bats d. Rodents

Answer 33

b. ticks

Question 34

Parvo- and circoviruses a. cause infection through skin lesions. b. have +ssRNA genome. c. have good resistance to the environment. d. use viral transcriptase for their multiplication.

Answer 34

c. have good resistance to the environment

Question 35

Hepadnaviruses have weak resistance in the environment. a. True b. False

Answer 35

a. true

Question 36

Paramyxoviruses a. are enveloped. b. cause slowly progressing infections. c. cannot be propagated in vitro. d. can use their genome as mRNA.

Answer 36

a. are enveloped

Question 37

Some birnaviruses can cause disease in fish. a. True b. False

Answer 37

a. true

Question 38

The Epstein-Barr virus is a retrovirus. a. True b. False

Answer 38

b. false

Question 39

Hepatitis A virus is transmitted by sexual contact a. True b. False

Answer 39

a. true