Viruses are tiny infectious agents that have a profound impact on human health, biology, and the environment. Whether you're a student, researcher, or job seeker, understanding the nature of viruses is crucial. Here Examtry team present a series of multiple-choice questions (MCQs) designed to help you test and improve your knowledge of these important pathogens. Whether you're preparing for a job test or simply looking to expand your knowledge, these Viruses MCQs are an excellent way to get started. With continued study and practice on the platform of Examtry.com, you'll be on your way to becoming an expert in the Viruses in no time.
MCQs under the topic of Viruses covers all tests conducted by FPSC, NTS, KPSC, PPSC, SPSC, BPSC, OTS, UTS, UPS, PTS, CTS, ATS, ETEA or any other institution. Anyone who wants to pass job test comprising one paper or MCQs based test come on examtry.com and get prepared himself.
1 - 252 identical molecules have capsid
polyhedral
2 - A capsid is shell of
protein
3 - A genetic code small collection which have either DNA or RNA and surrounded by a protien coat
Virus
4 - A nucleic acid that have genetic material determining the makeup of all living cells
DNA
5 - A small particle which can not produce itself is
virus
6 - According tp resalind frunklin virus is not solid and
hollow
7 - Acquired immune deficiency syndrome in short form
AIDS
8 - Adenoviruses have identical molecules
252
9 - Adolf mayer described the TMV as disease in
1883
10 - Adolf mayer thought that tmv is disease and spread by
bacterial infection
11 - Adults are immune from mumps
0.6
12 - AIDS caused by
HIV
13 - All plants viruses and pluge viruses are
without envelop
14 - All viruses belong to phyla each virus belong to sub phyla
two
15 - An obligate interacellular parasite can not live without
host
16 - An outer layer of virus is
envelope
17 - Another side of sheath have
layer
18 - Aphids kingdom is
animalia
19 - Aphids order is
hemiptera
20 - Aphids phylum is
arthropoda
21 - Aphids scientific name is
aphidoidea
22 - Aphids super family is
aphidoidea
23 - Are mainly used in phage studies
a and b both
24 - Bacteria brust and produce large number of phage is
lytic cycle
25 - Can not grow on artificial media or test tube
Virus
26 - Capsid containd protein subunits
capsomeres
27 - Capsid encloses with
nucleic acid
28 - Capsid is made of molecules of protien
2130
29 - Capsid made up molecules of protien
thousands
30 - Capsid of viruses have shaped
a and b both
31 - Capsomeres are present in herpes virus
162
32 - Capsomeres closely attached with
nucleic acid
33 - Cleaving the peptidoglycan component of bacterial cell walls
lysozyme
34 - Corona virus is
positive stranded RNA
35 - Coronam is the latin term for
crown
36 - Cotton family name is
malvaceae
37 - Crystallized the virus
meredith stanley
38 - Deoxybinala have family
phagoviriclae
39 - Deoxybinala have virus order
one
40 - Deoxybinala have virus order single name is
herpesvirdae
41 - Deoxycubica have orders
two
42 - Deoxyhelica have order
chaetovirals
43 - Deoxyhelica have single family
poxvirindae
44 - Deoxyvira have classes
three
45 - Disease infect the plants leaves stem of plants
yellow disease of potato
46 - Disease occurred in mouth and other skin site is
herpes simplex
47 - DNA containing binal virus is
deoxybinala
48 - DNA is located into
cell nucleus
49 - DNA virus which contain cubical symmetry is
deoxycubica
50 - Due to small size can pass through filter are
virus
51 - During multiplication phage viruses copy formed in 25 minuts
200
52 - Edward jenner vaccinated in
1796
53 - Enveloped virus are
peplovirles
54 - Enzyme which naturally occuring in milk
lysozyme
55 - Enzyme which naturally occuring in Saliva
lysozyme
56 - Enzyme which naturally occuring in tears
lysozyme
57 - Filterable agents were first purified in
1935
58 - Filtered through the bacterial tissue still conatined the infection by
martinus beijerinck
59 - First case of corona virus occurred in china in
November
60 - First electron microscopical on TMV in
1939
61 - First evidence that the non bacterial disease by
dimitri lvanovski
62 - First step of infection of virus
penetration
63 - First symptoms of TMV is
light green colouration
64 - First vaccinated boy edwaed jenner is years old
8
65 - First vaccinated boy name is
edward jenner
66 - First virus which was discovered
TMV
67 - Fluid filled vesicles are formed on body and then convert into pitted scars
pocks
68 - Fluid filled vesicles are formed on body in
small pox
69 - Form of protein make inner tube which called
core
70 - General structure of virus is called
virion
71 - Gymnovirales are
without envelope
72 - Gymnovirales have families
two
73 - Haplovirales have families
six
74 - Helical symmetry virus is
deooxyhelica
75 - HIV affect on
T Lymphocyte
76 - HIV transmitted by intimate
All
77 - HIV viruses penetrate into
leukocytes
78 - IIIV Virus cause of
AIDS
79 - Immune system of host destroyed by
AIDS
80 - Immunization and other control measures has largely decreased in small pox in
1950
81 - In LCV leaves become
leathery
82 - In lock and key model key is the
substrate
83 - In lock and key model lock is the
enzyme
84 - In measles rashes on skin
7 to 21 days
85 - In pakistan LCV spread in cotton by
White fly
86 - In tail of phage virus core is enclosed into
sheath
87 - In third world countries many people affected by small pox in
1980
88 - In which cycle bacteria can not control biosynthetic machinery
lysogenic cycle
89 - Incorporate into host genome as
provirus
90 - Incubation period of measles is
11 to 12 days
91 - Infection start from external to plants and spread from leave to leave
horizental transmission
92 - Influenza virus outer layer is
lipids
93 - Influenza virus structure is
spherical
94 - Influenza viruses are enveloped viruses
RNA
95 - Influenza viruses have types
four
96 - Inject the infectious nucleic acid into host cytoplasm
protien
97 - LCV spread by white fly name is
bemisia tabaci
98 - Lock and key analogy first postulated in
1894
99 - Louis pasteur date of birth is
1822
100 - Louis pasteur date of death is
1875
101 - Major component of immune system is
T Lymphocyte
102 - Major virus transmitted by
white fly
103 - Many type of virus have a envelope
glycoprotien
104 - Martinus beijerinck first discovered the filtered agents
1898
105 - Meredith awarded noble prize in
chemistry
106 - Meredith awarded noble prize in chemistry in
1946
107 - Meredith stanley crystallized the virus in
1935
108 - Metabolic machinery lackness in
virus
109 - Method of infection of plant viruses
two
110 - Molting and discolouration of leaves symptoms of
TMV
111 - Most plant viruses are
RNA
112 - Mostly genomic RNA is called
plus strand
113 - Necrotic disease occurd in mostly potato and
tomato
114 - Negative strand electron microphotographs show distinct channel
4nm
115 - Negative strand of DNA is present In virus
few
116 - Nucleic acid of each virus contain
genetic information
117 - Nucleocapsid is
virus
118 - Numbers of capsomeres in different viruses
different
119 - On the surface of virus present
Protein
120 - Oncoviruses are enveloped by
plasma membrane host
121 - Oncoviruses diameter is
100nm
122 - Oncoviruses shape is
spherical
123 - One nanometer is equal to
10 power minus nine
124 - One of the common disease in childhood is
measules
125 - One side of sheath have
collar
126 - Order of deoxycubica is
a and b both
127 - Organism can not store energy in the form of ATP
Virus
128 - Paramyxoviruses are
a and b both
129 - Part of TMV can be separated in the laboratory
a and b both
130 - Parvoviruses causing
chronic anaemia
131 - Parvoviruses have size
20nm
132 - Peplovirles have family
two
133 - Peplovirles have family one and name is
herpesvirdae
134 - Phage does not destroy the bacteria
lysogenic cycle
135 - Phage virus contain the body parts
a and b both
136 - Phage virus have cycle
two
137 - Phage virus have different shapes like
all
138 - Phage virus head is
elongated
139 - Phage virus infect only bacteria
E.coli
140 - Phage virus replicate only in host
inside
141 - Phage virus tail have special enzyme
lysozyme
142 - Plus strand act as
messenger RNA
143 - Polio virus shape is
spherical
144 - Poliomyelitis caused by
Polio virus
145 - Potato bunchy top disease cause by
virnid
146 - Potato family is
solancease
147 - Potato genus is
solanum
148 - Potato kingdom is
plantae
149 - Potato order is
solanales
150 - Potato scientific name is
solanum tubersum
151 - pox causing virus is
pox virus
152 - Present in liquid suspention of protien molecules
viral RNA
153 - Protect nucleic acid from digestion by enzyme of host
capsid
154 - Protein and nucleic acid can not synthesize by self
Virus
155 - Protien provide to the virus by the help of
capsid
156 - Pux virus size is
250nm
157 - Resalind frunklin designed and built up TMV in
1958
158 - Resalind frunklin was
crystallographer
159 - Respiratory track of animals affected by
adenovirus
160 - Retrovirus class is
retraviricetes
161 - Retrovirus have enzyme
reverse transcriptase
162 - Retrovirus have family
retroviridae
163 - Retrovirus kingdom is
paranavirae
164 - Retrovirus order is
ortervirales
165 - Retrovirus phylum is
artverviricota
166 - Retroviruses produce tumors in
all
167 - Rhabdovirales have envelope
glycoprotien envelope
168 - Rhabdovirales have families
six
169 - Ribocubica contain virus
RNA
170 - Ribovira have order
two
171 - RNA based viruses are
two
172 - RNA convert into DNA by the help of
reverse transcriptase
173 - RNA nucleotides per protien
three
174 - RNA of TMV is
single stranded
175 - RNA Tumor viruses are
oncoviruses
176 - RNA virus in which RNA single strand converted into double stranded DNA
retrovirus
177 - Robert koch date of birth is
1843
178 - Robert koch date of death is
1910
179 - Sagovirales have
envelope
180 - Sagovirales have families
three
181 - Sap remained infection found in
1892
182 - Size of virus
small
183 - Size of virus measure in
milimeter
184 - Small pox average length is
10 to 14 days
185 - Small pox has been eradicated from the world decleared by
WHO
186 - Small pox occurred as epidemic in
china
187 - Small pox occurred in century
12th
188 - Smaller viruses have genes
four
189 - Some normal cells can convert into cancer cell by
retrovirus
190 - Some organism can be only seen by microscope is
microorganism
191 - Some virus infect only single virus host
phage virus
192 - Some virus stimulate the lysosome of host cell to produce
hydrolytic enzyme
193 - Species of virus which live in animals and spend decades without infection
herpes virus
194 - Spikes made of
glycoprotien
195 - Structure of T4 is studied by
electron microscope
196 - Subphylum which contain RNA core is
ribovira
197 - Tail has structure
complex
198 - Tail of phage virus attach with
head
199 - Tails attach with end plate is
six
200 - The branch which deals with the study of viruses is
virology
201 - The cells or organism which have equal dimension
isometric
202 - The cycle where bacteria can not brust is
lysogenic cycle
203 - The first case of corona virus occurred in
china
204 - The host specific virus is
HIV
205 - The last known case of small pox was occurred in
1977
206 - The most familiar viruses in human is
HIV
207 - The mRNA which leave the nucleus and move to cytoplasm where protien synthesis
complementry messenger RNA
208 - The protien monomer contain the amino acids
158
209 - The retrovirus which contain two identical RNA strands are called
diploid
210 - The subphylum which includes viruses with DNA core are
deoxyvira
211 - The viral DNA start controlling the biosynthetic machinery of host
multiplication
212 - The virion with double copy of gene is
diploid
213 - The virion with single copy of gene is
haploid
214 - The virus attack on cotton plants
LCV
215 - The virus was named HIV
1986
216 - The viruses without enveloped is
naked viruses
217 - There are different phage of viruses but known phage is
T phage
218 - Thickning of sub veins in young leaves is disease
LCV
219 - TMV Affect the
all
220 - TMV after replication enter into neighbouring cells by
plasmodesmata
221 - TMV attacked the tobaco and family
solanaceae
222 - TMV can withstand up to
120F
223 - TMV can withstand up to 120F Minuts
30
224 - TMV class is
alsuviricetes
225 - TMV discovered as a virus on infectious plants in
1930
226 - TMV enters in plants
mechanically
227 - TMV family is
virgaviricetes
228 - TMV first described by
adolf mayer
229 - TMV genus is
tobamovirus
230 - TMV has appearance
rod like
231 - TMV have a codes
RdRp
232 - TMV infect the individuals species
125
233 - TMV is
thermostable
234 - TMV kingdom is
orthonavirae
235 - TMV moves from cell to cell by the complex of
all
236 - TMV order is
martellivirales
237 - TMV produce a movement protien is
p30
238 - TMV realm is
riboviria
239 - TMV reduce the production of tobacco upto
0.02
240 - TMV virus is
RNA
241 - TMV was known from the century
19th
242 - Tobaco mosaic virus have capsid shape
rod
243 - Togovirales are
enveloped
244 - Togovirales have family
single
245 - Translation of viral protein
messenger RNA
246 - Tumor produce by viruses in animals
AIDS
247 - Tumors caused in tomatoes ,cucumber and tobaco plants
virus
248 - Ultramicroscopic agents was seen in foot and mouth disease
1898
249 - Vaccination for HIV in human started first in
Sauth america
250 - Vaccine for HIV experimental administrationnin human started in early
2001
251 - Vascular lesions in epithelial layer of ectodermal tissues are formed in
herpes simplex
252 - Viral DNA Detaches from the bacterial chromosome and start lytic cycle is
induction
253 - Viral DNA incorporate in bacterial chromosomes this phage in the state is
lysogeny
254 - Viral DNA incorporate in bacterial DNA as
prophage
255 - Virion assembly into new viruses is spontaneous process is called
self assembly
256 - Virion attach to a cell by the help of
capsid
257 - Virion enable to penetrate into host by
protien
258 - Virion of TMV in length
300nm
259 - Virion of TMV is diameter
18nm
260 - Virus affect on tobaco plants
TM
261 - Virus can be seen by
electron microscope
262 - Virus can reproduce by
replication
263 - Virus can reproduce in
all
264 - Virus composed of
a and b both
265 - Virus derive their energy from
host
266 - Virus generally called is
nucleocapsid
267 - Virus identify by their host by
lock and key
268 - Virus infect only a limited range of hosts is called
host range
269 - Virus infect several type of host
Ribies
270 - Virus is derived from the word
venom
271 - Virus kills the leaves of plants by necrosis
necrotic disease
272 - Virus lack of
enzyme
273 - Virus which infect the plants seeds are
vertical transmission
274 - Virus word generate by
a and b both
275 - Viruses are classified into groups are
four
276 - Viruses are classified into groups on the base of
shape
277 - Viruses are obligate intracellular
parasite
278 - viruses are smaller than bacteria times
10 to 1000
279 - Viruses develop
spikes
280 - Viruses enveloped composed of
lipid layers
281 - Viruses enveloped composed of lipids layers
two
282 - Viruses mostly spread in plants by
a and b both
283 - Viruses transferred from one plant to another plant by asexual propagation
vertical transmission
284 - Viruses use biosynthetic system of their
host
285 - Viruses which enveloped by glycoprotien is called
enveloped viruses
286 - Volume of phage about the host is
1/1000
287 - When HIV affect then T lymphocyte
decrease
288 - When lysogenic cycle convert into lytic cycle this condition is
induction
289 - Which enzyme cause the brusting of host cell
hydrolytic enzyme
290 - White fly class is
insecta
291 - White fly family is
aleyrodidae
292 - White fly kingdom is
animalia
293 - White fly order is
hemiptera
294 - White fly phylum is
arthropoda
295 - Whole crops of cotton distroyed by
LCV
296 - Wide spread disease in man and occurs in epidemic form
influenza
297 - Without envelop virus is
haplovirales
298 - Word venom is word of
latin
299 - Word venom meaning is
poisonous fluid
300 - Yellow fever occurred in
1901
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