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Viruses From Animal and Plants
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Viropexis takes place in the phagocytic vacuoles and is due to the action of enzymes
lysosomal lipase
lysosomal protease
DNA gyrase
All of These
What can be coated to the plastic dish if an ELISA is performed to directly detect polio virus
Colored substrate
Polio capsid protein
Patient serum
Anti-polio antibody
Transfer of infection from cell to cell occurs mainly by direct transfer of virions via
NONE OF THESE
plasmodesmata
cytodesmata
protodesmata
The microbes which are most likely to be completely dependent on a plant or animal host are
viruses
Algae
Bacteria
Fungi
Which type of interferon is produced by T lymphocytes
α
β
γ
γ and β
The transcription of the viral nucleic acid into mRNA is not necessary in case of
All of These
ds DNA viruses
ss DNA viruses
RNA viruses
What does the positive strand in double stranded RNA viruses stands for
NONE OF THESE
tRNA
rRNA
mRNA
Plant viruses penetrate host cells through transient ores called
cytodesmata
ectodesmata
endodesmata
protodesmata
Which of the following reflects the correct order of events that take place during the multiplication of a virus
Attachment, penetration, biosynthesis, maturation, release
Attachment, penetration, maturation, biosynthesis, release
Penetration, attachment, biosynthesis, maturation, release
Attachment, release, biosynthesis, maturation, penetration
What is the function of positive strand in double stranded RNA viruses
Both (a) and (b)
Synthesis of protein
Production of ribosomes
NONE OF THESE
The RNA sarcoma viruses, the most strongly transforming viruses may transform which of the following cells in a culture
fibroblasts
iris epithelial
myoblasts
All of These
The reovirus and influenza virus contain
7 different segments of dsRNA and 5different segments of ssRNA respectively
10 different segments of dsRNA and 8 different segments of ssRNA respectively
8 different segments of dsRNA and 10 different segments of ssRNA respectively
5 different segments of dsRNA and 7 different segments of ssRNA respectively
The nucleocapsid is covered by an outer membrane like structure called
Covering
membronocapsid
Envelope
All of These
Negri bodies are found in cells infected with
Fowlpox virus
Paramyxoviruses
Rabies virus
Vaccinia virus
Which of the following virus is transmitted by genital route
Papillomaviruses
All of These
Herpes simplex virus type 2
Hepatitis B virus
The tissue structure deteriorates as the virusmultiplies.
This deterioration is called
aneuploidy
cytopathic effect
NONE OF THESE
protopathic effect
Supercoiling refers to the extra turns in the structure of ds DNA due to the action of
DNA gyrase
RNA pyrase
DNA pyrase
RNA gyrase
West Nile virus can cause a disease in human beings that may be transmitted from an infected bird to a person by amosquito.
This is an example of
endogenous infection
nosocomial infection
arthropod borne disease
fomite borne disease
The penetration of animal viruses into attached cells occur by mechanisms consisting of engulfment of whole virions by the cells in a phagocytic process called
vivopexis
vitropexis
ectodesmata
viropexis
Which of the following virus is transmitted by the respiratory route
Coronavirus
Measles virus
All of These
Rhinovirus
1
2
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