Temperature can be expressed as derived quantity in terms of
A
length and mass
B
mass and time
C
length, mass and time
D
None of these
Question 2Single Answer
Electron volt is a unit of
A
potential difference
B
charge
C
energy
D
capacity
Question 3Single Answer
Dimensions of impulse are
A
[MLT β1]
B
[MLTΒ²]
C
[MTβ2]
D
[MLβ1Tβ3]
Question 4Single Answer
Potential is measured in
A
joule/coulomb
B
watt/coulomb
C
newtonβsecond
D
None of these
Question 5Single Answer
One Nanometer is equal to
A
10β9m
B
10β6m
C
10β10m
D
10β3m
Question 6Single Answer
Maxwell is the unit of
A
magnetic susceptibility
B
intensity of Magnetisation
C
magnetic Flux
D
magnetic Permeability
Question 7Single Answer
Which of the following is derived physical quantity ?
A
Mass
B
Velocity
C
Length
D
Time
Question 8Single Answer
What are the units of magnetic permeability ?
A
Wb Aβ1 mβ1
B
Wbβ1 Am
C
Wb A mβ1
D
Wb Aβ1 m
Question 9Single Answer
The dimensions of pressure gradient are
A
[MLβ2 Tβ2]
B
[MLβ2 Tβ1]
C
[MLβ1 Tβ1]
D
[MLβ1 Tβ2]
Question 10Single Answer
The dimensions of Rydberg's constant are
A
[M0Lβ1T]
B
[MLTβ1]
C
[M0 Lβ1T0]
D
[ML0 T2]
Question 11Single Answer
'Farad' is the unit of
A
resistance
B
conductance
C
capacitance
D
inductance
Question 12Single Answer
S.I. unit of surface tension is
A
degree/cm
B
N/m
C
N/mΒ²
D
Nm
Question 13Single Answer
Which one of the following pairs does not have the same dimension ?
A
Potential energy and Kinetic energy
B
Density and specific gravity
C
Focal length and height
D
Gravitational force and frictional force
Question 14Single Answer
Which one of the following physical quantity has the same unit as that of pressure ?
A
Angular momentum
B
Stress
C
Strain
D
Work
Question 15Single Answer
The symbol of SI unit of inductance is H. It stands for
A
Holm
B
Halogen
C
Henry
D
Hertz
Question 16Single Answer
Light year is a measure of
A
time
B
distance
C
total amount of light falling on the Earth in a year
D
average intensity of light falling on the Earth in a year
Question 17Single Answer
Which one of the following is not a dimension less quantity ?
A
Strain
B
Relative density
C
Frequency
D
Angle
Question 18Single Answer
The dimensions of universal gas constant are
A
[LΒ² MΒΉ Tβ2 Kβ1]
B
[LΒΉ MΒ² Tβ2 Kβ1]
C
[LΒΉ MΒΉ Tβ2 Kβ1]
D
[LΒ² MΒ² Tβ2 Kβ1]
Question 19Single Answer
The dimensions of magnetic moment are
A
[LΒ²AΒΉ]
B
[LΒ²Aβ1]
C
[LΒ²/AΒ³]
D
[LAΒ²]
Question 20Single Answer
The dimensions of Wien's constant are
A
[ML0TK]
B
[M0LT0K]
C
[M0L0TK]
D
[MLTK]
Question 21Single Answer
The dimensional formula of wave number is
A
[M0L0Tβ1]
B
[M0Lβ1T0]
C
[Mβ1 Lβ1 T0]
D
[M0 L0 T0]
Question 22Single Answer
The dimensional of Hubble βs wave number is
A
[Tβ1]
B
[M0L0Tβ2]
C
[MLT4]
D
[MTβ1]
Question 23Single Answer
The dimensions of solar constant is
A
[M0L0T0]
B
[MLTβ2]
C
[MLΒ²Tβ2]
D
MTβ3
Question 24Single Answer
The dimensional formula for entropy is
A
[MLTβ2KΒΉ]
B
[ML2 T-2]
C
[MLΒ²Tβ2Kβ1]
D
[MLΒ²Tβ2K]
Question 25Single Answer
Dimension of specific heat are
A
[MLΒ² Tβ2 K]
B
[MLΒ² Tβ2 Kβ1]
C
[MLΒ²TΒ²Kβ1]
D
[LΒ²Tβ2Kβ2]
Question 26Single Answer
The physical quantity which has the dimensional formula [MΒΉTβ3] is
A
surface tension
B
solar constant
C
density
D
compressibility
Question 27Single Answer
Which one of the following elements is used as a timekeeper in atomic clocks ?
A
Potassium
B
Caesium
C
Calcium
D
Magnesium
Question 28Single Answer
Which one of the following is the value of one nanometer ?
A
10β7 cm
B
10β6 cm
C
10β4 cm
D
10β3 cm
Question 29Single Answer
What is the unit of pressure ?
A
Newton/sq. meter
B
Newtonβmeter
C
Newton
D
Newton/meter
Question 30Single Answer
The unit of pressure is
A
kg/cmΒ²
B
kg/cm
C
kg/mm
D
kg/cm3
Question 31Single Answer
Which one of the following quantities doe not have unit ?
A
Stress
B
Force
C
Strain
D
Pressure
Question 32Single Answer
Dimensional formula for thermal conductivity is here K denotes the temperature:
A
MLTβ2K
B
MLTβ2Kβ2
C
MLTβ3K
D
MLTβ3Kβ1
Question 33Single Answer
Which of the following is the unit of molar gas constant ?
A
JKβ1 molβ1
B
Joule
C
JKβ1
D
J molβ1
Question 34Single Answer
Density of liquid is 16.8 g cmβ3. Its value in the International System of Units is
A
16.8 kgmβ3
B
168 kgmβ3
C
1680 kgmβ3
D
16800 kgmβ3
Question 35Single Answer
The dimensional formula of couple is
A
[MLΒ² Tβ2]
B
[MLTΒ²]
C
[MLβ1Tβ3]
D
[MLβ2Tβ2]
Question 36Single Answer
Subtract 0.2 J from 7.26 J and express the result with correct number of significant figures.
A
7.1 J
B
7.06 J
C
7.0 J
D
7 J
Question 37Single Answer
Multiply 107.88 by 0610 and express the result with correct number of significant figures.
A
65.8068
B
65.807
C
65.81
D
65.8
Question 38Single Answer
When 97.52 is divided by 2.54, the correct result is
A
38.3937
B
38.394
C
38.39
D
38.4
Question 39Single Answer
Which of the following is the most accurate ?
A
200.0m
B
20 Γ 10ΒΉ m
C
2Γ10Β²m
D
data is inadequate
Question 40Single Answer
The area of a square is 5.29 cmΒ². The area of 7 such square taking into account the significant figures is:
A
37cmΒ²
B
37.030 cmΒ²
C
37.03 cmΒ²
D
37.0 cmΒ²
Question 41Single Answer
The SI unit of coeffient of mutual inductance of a coil is
A
henry
B
volt
C
farad
D
weber
Question 42Single Answer
The S.I. unit of pole strength is
A
AmΒ²
B
Am
C
Amβ1
D
Amβ2
Question 43Single Answer
Which is dimensionless ?
A
Force/acceleration
B
Velocity/accerleration
C
Volume/area
D
Energy/work
Question 44Single Answer
The expression [MLβ1Tβ2] does not represent
A
pressure
B
power
C
Stress
D
Young's modulus
Question 45Single Answer
The dimensional formul of current density is
A
[M0Lβ2Tβ1Q]
B
[M0L2T1Qβ1]
C
[MLTβ1Q]
D
[MLβ2Tβ1QΒ²]
Question 46Single Answer
Match the List β I with List β II
List - IΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β List - II
(Units)Β Β Β Β Β Β Β (Physical quantity)
A. WattΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β 1. Electric charge
B. TeslaΒ Β Β Β Β Β Β Β Β Β Β Β Β Β 2. Power
C. CoulombΒ Β Β Β Β Β 3. Luminous intensity
D. CandelaΒ Β Β Β Β Β Β 4. Magnetic field
Select the correct answer from the codes given below :
A
A B C D
1 4Β 1Β 3
B
1 2Β 3 4
C
1 2Β 4Β 3
D
2 4 3Β Β 1
Question 47Single Answer
Match the List β I with List β II
List - IΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β List - II
(Physical quantity)Β Β Β (Units)
A. PowerΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β 1. kg msβ1
B. EnergyΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β 2. kg mΒ²sβ1
C. MomentumΒ Β Β Β Β Β Β Β Β 3. Nmβ2
D. PressureΒ Β Β Β Β Β Β Β Β Β Β Β Β 4. kW
Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β 5. kWh
Select the correct answer from the codes given below :
A
A B C D
4 5 1Β 3
B
4 5 1 2
C
5 4 1 2
D
5 4 2 3
Question 48Single Answer
What is the correct sequence in which the lengths of the following units increase ?
(1) Angstrom
(2) Micron
(3) Nanometer
Select the correct answer from the codes given below :
A
1, 2, 3
B
3, 1, 2
C
1, 3, 2
D
2, 3, 1
Question 49Single Answer
Match the List β I with List β II
List - IΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β List - II
(Physical quantitiy)Β Β Β Β Β Β Β Β Β Β (Units)
A. DensityΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β 1. [MLTβ2]
B. ForceΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β 2. [MLβ3]
C. EnergyΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β 3. [MLTβ1]
D. MomentumΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β 4. [ML2Tβ2]
Select the correct answer from the codes given below :
A
A B C D
3 2Β 4Β 1
B
1 2 3 4
C
2 1 4 3
D
3 2 1 4
Question 50Single Answer
Match the List β I with List β II
List - IΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β List - II
(Physical quanitity)Β Β Β Β Β (Units)
A. Solid angleΒ Β Β Β Β Β Β Β Β Β Β 1. pascal
B. ImpulseΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β 2. Steradian
C. ViscosityΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β 3. Newtonβsecond
D. PressureΒ Β Β Β Β Β Β Β Β Β Β Β Β Β 4. Pascalβsecond
Select the correct answer from the codes given below :
A
A B C D
2 4Β 3 1
B
2 3 4 1
C
1 4 3 2
D
1 3 4 2
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Chemistry
Question 51Single Answer
Which of the following is not a synthetic fibre:
A
Anygora
B
Rayon
C
Nylon
D
Polyster
Question 52Single Answer
Which one of the following is not contained in Portland cement ?
A
Ca3Al2O6
B
Ca3SiO5
C
Ca2SiΒO4
D
Ca3(PO4)2
Question 53Single Answer
What is the reson for white cement to be white ?
A
It does not contain carbon
B
It does not contain silicon
C
It does not contain iron
D
It does not contain calcium
Question 54Single Answer
Which fertilizer is assimilated directly by the plant ?
A
Super phosphate
B
Nitrolim
C
Muriate of Potash
D
Humus
Question 55Single Answer
Which of the following chemicals is used in foam fire extinguishers ?
A
Aluminium sulphate
B
Copper sulphate
C
Cobalt sulphate
D
Nickel sulphateΒ
Question 56Single Answer
What is a mixture of potassium nitrate, powdered charcoal and sulphur called ?
A
Glass
B
Cement
C
paint
D
Gun powder
Question 57Single Answer
Which one of the following chemicals is used in beauty parlours for hair β setting ?
A
Sulphur based
B
Phosphorus based
C
Silicon based
D
Iron basedΒ
Question 58Single Answer
Which one of the following is used as a mordant in dyeing and tanning industry ?
A
Magnesium oxide
B
Magnesium carbonate
C
Magnesium chloride
D
Magnesium sulphate
Question 59Single Answer
Which one of the following substances is used in the manufacture of safety matches ?
A
Red phosphorus
B
White phosphorus
C
Phosphorus trioxide (P2O3)
D
Black phosphorus
Question 60Single Answer
Which one of the following polymeric materials is used for making bullet proof jacket ?
A
Nylon β6, 6
B
Rayon
C
Kevlar
D
Dacron
Question 61Single Answer
Which one of the following is another name of RDX
A
Cyanohydrin
B
Dextran
C
Cyclohexane
D
Cyclonite
Question 62Single Answer
Which one of the following is used as an explosive ?
A
Phosphorus trichloride
B
Mercuric oxide
C
Graphite
D
Nitroglycerine
Question 63Single Answer
Flint glass is obtained from which of the following ?
A
Zinc and barium borosilicate
B
Sand, red lead and potassium carbonate
C
Sodium aluminium borosilicate
D
Pure silica and zinc oxide
Question 64Single Answer
Which one of the following correctly defines the state of glass ?
A
Crystalline solid
B
Super cooled liquid
C
Condensed gas
D
Liquid crystal
Question 65Single Answer
Which one of the following is not used as fertilizer ?
A
Ammonium nitrate
B
Ammonium sulphide
C
Ammonium phosphate
D
Ammonium sulphateΒ Β
Question 66Single Answer
Which one of the following elements is needed in the human body to transfer electrical signals by nerve cells ?
A
Lithium
B
Sodium
C
Rubidium
D
Caesium
Question 67Single Answer
Which one of the following is NOT true for bleaching powder ?
A
It is used as a reducing agent in chemical industries
B
It is used for bleaching wood pup in paper factories
C
It is used for disinfecting drinking water
D
It is used for bleaching linen in textile industry
Question 68Single Answer
Hard glass having the same ingredientsas soft glass excepts.
A
hard glass have Na in place of K
B
hard glass having K in place of Na
C
hard glass having both Na and K
D
None of the above
Question 69Single Answer
A complete fertilizer provides
A
N,P, K
B
S, K, N
C
S, B, K
D
N, S, P
Question 70Single Answer
Antacids are commonly used to get rid of acidity in the Stomach. A commonly used antacid is.
A
sodium hydrogen phthalate
B
magnesium hydroxideΒ Β
C
calcium hydroxide
D
manganese acetate
Question 71Single Answer
Annealing of glass is done to.
A
make it brittle
B
make it opaque
C
make it transparent
D
None of the above
Question 72Single Answer
Petrochemicals are obtained from.
A
coal
B
petroleum
C
coal tar
D
All of these
Question 73Single Answer
The use of chemicals for treatment of diseases is called as.
A
isothermotherapy
B
angiotherapy
C
physiotherapy
D
chemotherapy
Question 74Single Answer
Which of the following is a hypnotic drug ?
A
luminal
B
salol
C
catechol
D
chemisol
Question 75Single Answer
Teflon is a polymer of which of the following monomers ?
A
Tetrafluoroethylene
B
Vinyl chloride
C
Acetylene dichlorideΒ Β
D
None of the above/More than one of the above
Question 76Single Answer
LPG used as domestic fuel chiefly containsβ
A
Methane
B
Propane
C
Ethylene
D
Butane
E
None of the above/More than one of the aboveΒ Β Β
Question 77Single Answer
Glass is a.
A
liquid
B
colloid
C
nonβcrystalline amorphous solid
D
crystalline solid
Question 78Single Answer
Which one of the following acids is used for etching glass ?
A
H2SO4
B
HNO3
C
HF
D
HCI
Question 79Single Answer
What is the purpose of adding plasticizers in paint manufacturing process ?
A
They act as a filmβforming constituent
B
They reduce the viscosity
C
They prevent the polymerization and condensation
D
They provide elasticity to the film and minimize its cracking
Question 80Single Answer
Which raw material is used in the preperation of soft glass ?
A
K2CO3, SiO2, CaCO3
B
K2CO3, SiO2, PbCO3
C
Na2CO3, SiO2, CaCO3
D
Na2CO3, SiO2,Β PbO
Question 81Single Answer
What is the composition of nitrolim β a chemical fertilizer ?
A
Nitrogen and limestone
B
Calcium carbide and nitrogen
C
Calcium carbide and carbon
D
None of above
Question 82Single Answer
the major component used in preparation of different type of glasses is.
A
Silica
B
Sodium borate
C
Calcium silicate
D
Sodium silicate
Question 83Single Answer
Salts of which of the following elements provide colours to fireworks ?
A
Zinc and sulphur
B
Potassium and mercury
C
Strontium and barium
D
Chromium and nickel
Question 84Single Answer
Given below are two statements :
Statement I : Phenyl is used as a household germicide.
Statement II : Phenyl is phenol derivative and phenol is an effective germicide.
In the light of the above statement, choose the correct answer from the options given below:
A
Both Statement I and II are correct and Statement II is the correct explanation of Statement I
B
Both Statement I and Statement II are true but Statement II is NOT the correct explanation of Statement I
C
Statement I is correct, but Statement II is incorrect
D
Statement I is incorrect, but Statement II is correct
Question 85Single Answer
Given below are two statements :
Statement I : Coalβbased thermal power stations contribute to acidβrain.
Statement II : Oxides of carbon are emitted when coal burns.
In the light of the above statement, choose the correct answer from the options given below:
A
Both Statement I and II are individually correct and Statement II is the correct explanation of Statement I
B
Both Statement I and Statement II are individiaully correct but Statement II is not the correct explanation of Statement I
C
Statement I is correct, but Statement II is incorrect
D
Statement I is incorrect, but Statement II is correct
Question 86Single Answer
Terfenadine is commonly used as a/an.
A
transquilizer
B
antihistamine
C
antimicrobial
D
antibiotic
Question 87Single Answer
Which one of the following is not a tranqualizer ?
A
Equanil
B
Veronal
C
Salvarsan
D
Serotonin
Question 88Single Answer
Barbituric acid and its derivatives are well known.
A
antipyreticsΒ Β Β
B
analgesics
C
antisepticsΒ Β
D
tranquilizersΒ
Question 89Single Answer
Which one among is not an analgesic ?
A
Ibuprofen
B
Naproxen
C
Aspirin
D
Valium
Question 90Single Answer
Various phenol derivatives, tincture of iodine (2 β 3%) I 2 in (water/alcohol) and some dyes like methylene blue are.
A
antiseptics
B
disinfectants
C
analgesics
D
antipyretics
Question 91Single Answer
Commonly used antiseptics 'Dettol' is a mixture of.
A
oβchlorophenozylenol + terpeneol
B
oβcresol + terpeneol
C
phenol + terpeneol
D
chloroxylenol + terpeneol
Question 92Single Answer
Which of the following is not an antiseptic drug ?
A
Iodoform
B
Dettol
C
Gammexene
D
Genatian violet
Question 93Single Answer
Which one of the following substances is made from natural raw materials ?
A
Rayon
B
Nylon
C
Polyster
D
Polystyrene
Question 94Single Answer
The polymeric fibre used as a substitute for wool in making synthetic blankets, sweaters, etc. is.
A
nylon
B
teflon
C
orlon
D
bakelite
Question 95Single Answer
The cleaning of dirty clothes by soaps and detergents is deue to a type of molecules called surfactants, which are present in soaps and detergents. The surfactant molecules remove the dirt by.
A
making the cloth slippery
B
producing some gases between the dirt and the cloth
C
dissolving the dirt
D
forming some aggregates of themselves and take away the dirt in the core of the aggregates
Question 96Single Answer
Contact lenses are made from.
A
polyvinyl chloride
B
polystyrene
C
lucite
D
teflon
Question 97Single Answer
On of the occupational health hazards commonly faced by workers of ceramics, pottery and glass industry is.
A
stone formation in gall bladder
B
melanoma
C
silicosis
D
stone formation in kidney
Question 98Single Answer
vermicompost is an/a.
A
inorganic fertilizer
B
toxic substance
C
organic bio fertilizer
D
synthetic fertilizer
Question 99Single Answer
The macro nutrients provided by inorganic fertilizer are.
A
carbon, iron and boron
B
magnesium, manganese and sulphur
C
magnesiu, zinc and iron
D
nitrogen, phosphorus and potassium
Question 100Single Answer
Which one of the following statement is not correct ?
A
Water starts boiling when its vapour pressure becomes equal to amospheric pressure
B
Water is known as universal solvent
C
Permanent hardness of water is due to presence of MgClΒΒ2Β,Β CaCl2,Β MgSO4Β and CaSO4
D
Density of ice is greater than that of water
Biology
Question 101Single Answer
Plant viruses usually contain :
A
RNA
B
DNA
C
DNA and RNA
D
DNA or RNA
Question 102Single Answer
Viruses were discovered by :
A
Stanley
B
Ivanowski
C
Twort
D
Herelle
Question 103Single Answer
Which statement best defines viruses?
A
Acellular infectious agents that replicate only inside living host cells
B
Cellular microorganisms containing only DNA
C
Free-living microorganisms capable of independent metabolism
D
Cellular microorganisms containing only RNA
Question 104Single Answer
Which infectious agents consist essentially of small, naked RNA molecules without a protein coat?
A
Virions
B
Prions
C
Viroids
D
Bacteriophages
Question 105Single Answer
Coliphage f X 174 contains :
A
double stranded RNA
B
single stranded DNA
C
double stranded DNA
D
single stranded RNA
Question 106Single Answer
Viruses differ from living organisms in that, they :
A
can grow inside a living host
B
can multiply inside a living host
C
can undergo mutation inside a living host
D
are non-cellular
Question 107Single Answer
Virus which attacks E.coli is called :
A
bacteriophage
B
coliphage
C
phytophage
D
zoophage
Question 108Single Answer
Which characteristic distinguishes viruses from cellular organisms?
A
They possess ribosomes for protein synthesis
B
They have independent energy metabolism
C
They are acellular and depend on host cells for replication
D
They reproduce by binary fission
Question 109Single Answer
The genome of a temperate bacteriophage integrated into the bacterial chromosome is termed as?
A
Prophage
B
Episome
C
Plasmid
D
Capsomere
Question 110Single Answer
Virus was crystallized and isolated first by :
A
J.D. Ivanowski
B
F.C. Bawden
C
W.M. Stanley
D
K.M. Smith
Question 111Single Answer
Little leaf disease of brinjal is primarily associated with which pathogen?
A
Phytoplasma
B
Begomovirus
C
Fungus
D
Viroid
Question 112Single Answer
Which approximate size range includes many of the smallest known conventional virus particles?
A
20β30 nm
B
100β150 nm
C
500β700 nm
D
1β2 Β΅m
Question 113Single Answer
Which of the following is devoid of protein coat, with a constitution of RNA only ?
A
Tobacco mosaic virus
B
Poxvirus
C
Potato spindle tuber virus
D
None of the above
Question 114Single Answer
Genetic modification brought about by a virus in a bacteria is known as :
A
transformation
B
transduction
C
conjugation
D
candidiasis
Question 115Single Answer
Which property makes the classification of viruses as strictly living or non-living problematic?
A
They reproduce independently outside cells
B
They possess cellular organelles but lack DNA
C
They replicate in host cells but are metabolically inactive outside them
D
They perform independent respiration outside host cells
Question 116Single Answer
Influenza viruses contain which type of genetic material?
A
Double-stranded DNA
B
Single-stranded RNA
C
Single-stranded DNA
D
Double-stranded RNA
Question 117Single Answer
Edward Jenner is best known for pioneering vaccination against which disease?
A
Smallpox
B
Chickenpox
C
Rabies
D
Poliomyelitis
Question 118Single Answer
Roux Sarcoma virus contains :
A
RNA
B
DNA
C
DNA and RNA
D
None of these
Question 119Single Answer
Which of the following is a viral disease of potato ?
A
Early blight of potato
B
Late blight of potato
C
Leaf roll of potato
D
None of the above
Question 120Single Answer
The term Virus' has been derived from a Latin word meaning :
A
poison
B
secretion
C
cell
D
venom
Question 121Single Answer
Which of the following is an example of DNA containing plant virus ?
A
Tobacco mosaic virus
B
Potato mosaic virus
C
Cauliflower mosaic virus
D
Tomato mosaic virus
Question 122Single Answer
Rabies is caused by :
A
viruses
B
slime moulds
C
fungi
D
bacterium
Question 123Single Answer
A clear area produced when bacteriophages lyse bacterial cells growing on a culture medium is called a?
A
Plaque
B
Colony
C
Streak
D
Capsule
Question 124Single Answer
An antiviral substance produced by many vertebrates in response to viral infection for resisting the multiplication of viruses is known as :Β
A
antivirin
B
antigen
C
virion
D
interferon
Question 125Single Answer
Viruses with two types of symmetry, i.e., icosahedral head and helical tail are called :
A
picornaviruses
B
binal viruses
C
riboviruses
D
none of these
Question 126Single Answer
What generally happens to contractile-vacuole activity when a freshwater Amoeba is transferred to a sufficiently hypertonic saline solution?
A
It increases rapidly
B
It remains unchanged
C
It decreases markedly or may cease
D
The vacuole divides repeatedly
Question 127Single Answer
What is the median adhesive pad located between the two terminal claws of a cockroach leg called?
A
Unguis
B
Arolium
C
Tibial spur
D
Cercus
Question 128Single Answer
The binomial system of Carolus Linnaeus was devoid of which of the following categories ?
A
Genus and species
B
Class and order
C
Phylum and family
D
Kingdom and class
Question 129Single Answer
The mouthparts of a cockroach are adapted primarily for which mode of feeding?
A
Biting and chewing
B
Piercing and sucking
C
Siphoning
D
Sponging
Question 130Single Answer
Which mosquito is the biological vector responsible for natural transmission of human malaria?
A
Male Culex
B
Female Culex
C
Female Aedes
D
Female Anopheles
Question 131Single Answer
Amniota group includes :
A
Aves and Reptiles
B
Pisces, Amphibia and Reptiles
C
Amphibia, Reptiles and Aves
D
Reptiles, Aves and Mammalia
Question 132Single Answer
Which combination correctly represents the principal mouthparts of a cockroach?
A
Labrum, mandibles, first maxillae, labium and hypopharynx
B
Labrum, antennae, tibia, labium and cerci
C
Mandibles, antennae, femur, maxillae and labium
D
Labrum, wings, mandibles, hypopharynx and tibia
Question 133Single Answer
In a typical winged insect, the two pairs of wings are borne on which thoracic segments?
A
Prothorax and mesothorax
B
Mesothorax and metathorax
C
Prothorax and metathorax
D
Prothorax and first abdominal segment
Question 134Single Answer
Which is true ?
A
Pisces, Reptiles and birds are poikilotherms
B
Pisces, Amphibians and Reptiles are Anamniota
C
Aves, Mammals and Reptiles are homeotherms
D
Reptiles, Aves and Mammais are Amniota
Question 135Single Answer
Which sequence correctly represents the general forward flow of haemolymph through the dorsal vessel of a cockroach?