Light of wave 500×10 -9 m falls normally on a plane diffraction grating having 8 x 10 +3 lines per cm. The minimum number of images seen is:

ETEA 2017
Physics
Elimination Tool:

A) 3
B) 4
C) 5
D) 1

What happens when charge is placed on a soap bubble?

ETEA 2017
Physics
Electrostatics
Elimination Tool:

A) It collapse
B) Its radius increases.
C) Its radius decreases.
D) None of the above.

Choose the correct arrangement of the various regions of the electromagnetic spectrum in terms of wave length.

ETEA 2017
Physics
Electromagnetic Waves
Production of electromagnetic waves
Elimination Tool:

A) Ir>uv> visible > microwave > radio frequency
B) Microwave >ir> visible >uv> radio frequency
C) Radio frequency > microwave >ir> visible >uv
D) Visible >ir>uv> microwave > radio wave

A body of mass 2kg collides with a wall with speed 100 m s-1 and rebounds with the same speed the force exerted on the wall is 2 x 104 N. The time of contactis:

ETEA 2017
Physics
Elimination Tool:

A) 1/50 Sec
B) 1/25 Sec
C) 1/60 Sec
D) 1 Sec

Laplace corrected Newton’s formula for the velocity of sound in gas because the sound propagates:

ETEA 2017
Physics
Elimination Tool:

A) As longitudinal
B) Adiabatically
C) Isothermally
D) Under isobaric conditions.

A cell of internal resistance 2.0Ω and electromotive force (e.m.f) 1.5V is connected a resistor of resistance 3.0Ω. What is the potential difference across the 3.0Ω resistor?

ETEA 2017
Physics
Current Electricity
Electomotive Force and Potential Difference
Elimination Tool:

A) 5V
B) 1.2V
C) 0.9V
D) 0.6V

When will 1 C of charge pass a point in an electrical circuit?

ETEA 2017
Physics
Current Electricity
Electric Current
Elimination Tool:

A) When 1A moves through a voltage of 1V
B) When a power of 1W is used for 1s
C) When the current is 5mA for 200s
D) When the current is 10A for 10s

Which experimental technique reduces the systematic error of the quantity being investigated?

ETEA 2017
Physics
Measurements
Errors and Uncertainties
Elimination Tool:

A) Adjusting am ammeter to remove its zero error before measuring a current.
B) Measuring several inter modal distance on a standing wave to find the mean inter modal distance
C) Measuring the diameter of a wire repeatedly and calculating the average.
D) Timing a large number of oscillation to find a period

The units of planks constant are the same as that of :

ETEA 2017
Physics
Atomic Spectra
Bohrs Model of the Hydrogen Atom
Elimination Tool:

A) Angular Momentum
B) Work
C) Force
D) Torque

In a simple electrical circuit the current in a resistor is measured as (2.50 +_ 0.05) mA. The resistor is marked as having a value of 4.7 _+2%. If these value where used to calculate the power dissipated in the percentage uncertainty in the value obtained ?

ETEA 2017
Physics
Elimination Tool:

A) 2%
B) 4%
C) 6
D) 8%

Two lamps are connected in series to a 250 V power supply. One lamp is rated 240 V, 60 W and the other rated 10 V, 2.5 W. Which statement most accurately describe what happens?

ETEA 2017
Physics
Current Electricity
Electrical Power and Power Dissipation in Resistors
Elimination Tool:

A) Both lamps light at less than their normal brightness.
B) Both lamps light at their normal brightness.
C) Only the 240 V lamp lights
D) The 10 V lamp blows.

If x-component of a vector is v3 and y-component is 1, then the angle made by the vectoralong x-axis is:

ETEA 2017
Physics
Scalars and Vectors
Vector Addition by Rectangular Components
Elimination Tool:

A) 60O
B) 30O
C) 45O
D) 90O

Work function for a certain surface is 3.3 ev. Minimum frequency, light must have in order to eject electron from surface will be:

ETEA 2017
Physics
Dawn of Modern Physics
Elimination Tool:

A) 8 x 1014 Hz
B) 3.2 x 1015 Hz
C) 4.8 x 1015 Hz
D) 6.4 x 1015 Hz

The Sum of 2 forces acting at a point is 16N. If the resultant force is 8N and its direction is perpendicular to minimum force, then the force is:

ETEA 2017
Physics
Elimination Tool:

A) 6N and 10N
B) 8N and 8N
C) 4N and 12N
D) None of them

The refractive index is equal to the tangent of the angle of polarization. It is called:

ETEA 2017
Physics
Optics, Nature of Light and Optical Instruments
Polarization of Light
Elimination Tool:

A) Brewster’s Law
B) Malu’s Law
C) Bragg’s Law
D) Grimaldi’s Law

The potential of the two plates of a capacitor are +10 V and -10 V the charge on one of the plates is 40C . The capacitance of the capacitor is :

ETEA 2017
Physics
Elimination Tool:

A) 2 F
B) 4 F
C) 0.5 F
D) 0.25 F

A Turning fork A produces 4 beats / second with another turning fork B of frequency 280 Hz. When fork A is loaded with a little wax, the beat frequency change to 2. The frequency of fork Abefore loading is:

ETEA 2017
Physics
Wave Motion and Sound
Beats
Elimination Tool:

A) 292 Hz
B) 284 Hz
C) 290 Hz
D) 288 Hz

Eight drops of water, each radius 2mm are falling through air at a terminal velocity of 8cms-1. If they coalesce to form a single drop the terminal velocity of the combined drop will be:

ETEA 2017
Physics
Elimination Tool:

A) 8 cms-1
B) 16 cms-1
C) 24 cms-1
D) 32 cms-1

A carnot engine working between 200k and 400k has a work output of 600 J per cycle. How much heat energy is supplied to the engine from the source of each cycle.

ETEA 2017
Physics
Heat and Thermodynamics
Thermodynamic Scale of Temperature
Elimination Tool:

A) 1400 J
B) 1200 J
C) 1700 J
D) 1300 J

A value for the acceleration of free fall on earth is given as (10+-2) m s-2. Which statement is correct?

ETEA 2017
Physics
Measurements
Precision and Accuracy
Elimination Tool:

A) The value is accurate but not precise
B) The value is both accurate and precise.
C) The value is neither precise nor accurate.
D) The value is precise but not accurate.

When a ray of light enters a glass slit from air:

ETEA 2017
Physics
Elimination Tool:

A) Its wave length decreases
B) Its wave length in creases
C) Its frequency increases
D) Its frequency decreases

A boy walks to his school at a distance of 6km with a speed of 3km/h and walks back with a constant speed of 2km/h. His average speed for round trip in km/h is:

ETEA 2017
Physics
Elimination Tool:

A) 2.5
B) 2.4
C) 5
D) 2.3

A metal sphere of radius r is dropped into a tank of water. As it sink at speed v, it experience a drag force F given by F= krv, where k is a constant: What are the SI base units of k?

ETEA 2017
Physics
Measurements
Physical Quantities
Elimination Tool:

A) kg m2s-1
B) kg m2s-2
C) kg m-1s-1
D) kg ms-2

In a stream lined flow the velocity of the liquid in contact with the containing vessel is:

ETEA 2017
Physics
Elimination Tool:

A) Zero
B) Minimum but not zero
C) Large
D) Peripheral

The resistance of a device is designed to change with temperature. What is the device?

ETEA 2017
Physics
Current Electricity
Wire Wound Variable Resistors
Elimination Tool:

A) A light dependent resistor
B) A potential divider
C) A semiconductor diode
D) A thermistor

An engine pumps out 40kg of water in second. The water comes out of vertically upward with a velocity of 3 ms-1, the power of engine in kilowatt is:

ETEA 2017
Physics
Elimination Tool:

A) 1.2 kW
B) 12kW
C) 120kW
D) 1200kW

The time period of the simple pendulum is 2 second. If its length is increased by 4 times, then its period becomes:

ETEA 2017
Physics
Oscillations and Simple Harmonic Motion
Simple Pendulum
Elimination Tool:

A) 16s
B) 12s
C) 8s
D) 4s

In Young double slit experiment with sodium light, the slit are 0.589m apart. What is the angular width of the third maximum given λ=589nm

ETEA 2017
Physics
Elimination Tool:

A) sin-1(3×10-6)
B) sin-1(3×10-8)
C) sin-1(3×10-6)
D) sin-1(3×10-8)

Standing waves are produced in 10 m long stretched string. If the string vibrates in 5 segments and wave velocity is 20 ms-1, its frequency is:

ETEA 2017
Physics
Elimination Tool:

A) 2 Hz
B) 4 Hz
C) 5 Hz
D) 10 Hz

An electric charge in an accelerated motion produce:

ETEA 2017
Physics
Elimination Tool:

A) An electric field only
B) A magnetic field only
C) Electromagnetic radiation only
D) All of the above

A circular disc of mass M and radius R is rotating about it’s with uniform speed v. Its kinetics energy is:

ETEA 2017
Physics
Elimination Tool:

A) Mv2
B) ½ Mv2
C) ¼ Mv2
D) 1/8 Mv2

A particle is moving with a constant speed a long a straight line. A force is NOT required to:

ETEA 2017
Physics
Elimination Tool:

A) Increased speed
B) Decreased the momentum
C) Change the direction
D) Keep it moving with uniform velocity

The sound waves of frequency more than 20 khz are termed as:

ETEA 2017
Physics
Wave Motion and Sound
Fundamental and Overtone Vibration
Elimination Tool:

A) Supersonic
B) Audible
C) Infrasonic
D) Ultrasonic

Before a thunder stand on end. A hair with mass 0.50 μgand charge 1.0 pC is supported by a force other than the weight of the hair and the electric force. What is the electric field strength ?

ETEA 2017
Physics
Electrostatics
Elimination Tool:

A) 4.9 x 103 N C-1
B) 4.9 x 106 N C-1
C) 4.9 x 105 N C-1
D) 4.9 x 109 NC-1

A bullets of mass m moving with a velocity v is fired into a large wooden block of mass M. If the bullet remains embedded in the wooden block, the velocity of the system will be:

ETEA 2017
Physics
Elimination Tool:

A) Option A
B) Option B
C) Option C
D) Option D

Two bodies are dropped from different heights h1 and h2. There ratio of the times taken by them to reach the ground will be:

ETEA 2017
Physics
Elimination Tool:

A) h22:h12
B) h1 :h 2
C) √M1=√M2
D) None of the above

The speed of sound in air at NTP is 300 ms-1. If the air pressure become 4 times; then the speed of the sound will be:

ETEA 2017
Physics
Elimination Tool:

A) 150 s-1
B) 300 s-1
C) 600s-1
D) None

A particle executes SHM along a straight line. Its amplitude is A. The potential energy of the particle is equal to the kinetic energy when the displacement of the particle from the mean position is:

ETEA 2017
Physics
Elimination Tool:

A) Zero
B) .±A/2
C) ±A/√2
D) 2A

A stationary nucleus has nucleon number A. The nucleus decays by emitting a proton with speed “v” to form a new nucleus with speed u. The new nucleus and the proton move away from one another in opposite directions. Which equation gives “v” in terms of A and u?

ETEA 2017
Physics
Nuclear Physics
Radioactivity
Composition of Atomic Nuclei
Elimination Tool:

A) v=(A/4-1)u
B) v=(A-1)u
C) v=Au
D) v=(A+1)u

A person, travelling on a motorway a total distance of 200 km,travels the first 90 km at an average speed of 80 km/hr. Which average speed must be obtained for the rest of the journey if the person is to reach the destination in a total time of 2 hours 0 minutes?

ETEA 2017
Physics
Forces and Motion
Displacement, Velocity and Acceleration
Elimination Tool:

A) 110 km/hr
B) 120 km/hr
C) 122 km/hr
D) 126 km/hr

Which of the following cannot be polarized ?

ETEA 2017
Physics
Elimination Tool:

A) Radio waves
B) Ultraviolet rays
C) X-rays
D) Ultrasonic waves

Choose the anisotropic behavior

ETEA 2017
Physics
Elimination Tool:

A) Coefficient of thermal expansion
B) Lattice energy
C) Viscosity
D) Infrared spectroscopy

The Ratio of electro force between two protons to that between two electrons is of the order of:

ETEA 2017
Physics
Elimination Tool:

A) 1042
B) 1039
C) 1036
D) 1

A parachutist is falling constant terminal velocity. Which statement is not correct?

ETEA 2017
Physics
Work, Power & Energy
Elimination Tool:

A) Gravitational potential energy is converted into kinetic energy of the air.
B) Gravitational potential energy is converted into kinetic energy of the parachutist.
C) Gravitational potential energy is converted into thermal energy of the air
D) Gravitational potential energy is converted into thermal energy of the parachutist.

Two boys weighting in the ratio 4:5 goes up stair taking time in the ratio 5:4. The ratio of their power is:

ETEA 2017
Physics
Elimination Tool:

A) 1
B) 16/25
C) 25/16
D) 4/5

How much kinetic energy will be gained by an (alpha) particle ion going from a point at 70 V to another point at 50 V ?

ETEA 2017
Physics
Elimination Tool:

A) 40 eV
B) 40 KeV
C) 40 MeV
D) Zero

A bomb explodes on the moon. How long will it take for the sound to reach the earth:

ETEA 2017
Physics
Elimination Tool:

A) 10 sec
B) 1000 sec
C) 1 day
D) None of the above

When 1012 electrons are received from a neutral metal sphere. The charge on the sphere becomes:

ETEA 2017
Physics
Elimination Tool:

A) 0.16uc
B) -0.16uc
C) 0.32uc
D) -0.32uc

In S.H.M, the fraction of kinetic energy to total energy when displacement is one-half of the Amplitude is

ETEA 2017
Physics
Elimination Tool:

A) 1/8
B) 1/2
C) 1/4
D) 3/4

A object of mass “m” travelling with speed “v” has a head-on collision with another object of mass “m” travelling with speed “v” in the opposite direction, the object sticks together after the collision.What is the total loss of kinetic energy in the collision?

ETEA 2017
Physics
Circular Motion & Momentum
Elimination Tool:

A) 0
B) 1/2mv2
C) mv2
D) 2mv2

In a stationary wave the distance between consecutive antinodes is 25cm. If the wave velocity is 300ms-1 then the frequency of the wave will be:

ETEA 2017
Physics
Wave Motion and Sound
Stationary Waves
Elimination Tool:

A) 150 Hz
B) 300 Hz
C) 600 Hz
D) 750 Hz

When a car travelling with constant velocity passes a stationary observer, the observer hears a change in the frequency of sound emitted by the car. Which statement is correct ?

ETEA 2017
Physics
Wave Motion and Sound
Progessive Waves
Elimination Tool:

A) The change in frequency is greater as a car moves away than as it approaches.
B) The greater the speed of the car, the greater the change in observed frequency.
C) The observed frequency is lower as the car moves toward the observer and higher as the car moves away from the observer
D) The volume of the sound heard by the observer does not change as the car approaches.

Moment of inertia of an object does not depend upon:

ETEA 2017
Physics
Elimination Tool:

A) Mass of object
B) Mass of distribution
C) Angular velocity
D) Axis of rotation

A man walk for some time with velocity v due east. Then he walks for same time with velocity v due north. The average velocity for man is:

ETEA 2017
Physics
Elimination Tool:

A) 2v
B) √2v
C) v
D) v/√2

A body of mass 10 kg is hanging from a spring inside a lift. If the lift falls with an acceleration 10ms-2 then what will be the reading of spring balance:

ETEA 2017
Physics
Elimination Tool:

A) Zero
B) 2.5 kg
C) 5 kg
D) 10 kg

The acceleration of free fall on the Moon is one-six of that of Earth. On Earth, it takes time ‘t’ for a stone to fall from rest a distance of 2 m. What is the time taken for a stone to fall from rest a distance of 2 m on the Moon?

ETEA 2017
Physics
Forces and Motion
Equations of Uniformly Accelerated Motion
Elimination Tool:

A) 6 t
B) T/6
C) t√6
D) t/√2

The frequency of a second’s pendulum is :

ETEA 2017
Physics
Elimination Tool:

A) 1 Hz
B) 2 Hz
C) 5Hz
D) None of the above.

A Radioactive substance has a half-life of 60 minutes. During 3 hours, the percentage of the material that decayed would be:

ETEA 2017
Physics
Nuclear Physics
Radioactivity
Elimination Tool:

A) 12.5%
B) 87.5%
C) 8.5%
D) 25.1%

Choose the synonym for the word “ATTENUATE”.

ETEA 2017
English
Elimination Tool:

A) Appear
B) Be absent
C) Weaken
D) Testify

The path _________ paved, so we were able to walk through the path.

ETEA 2017
English
Elimination Tool:

A) Had been
B) Was
C) Has been
D) Being

“He is busy. Would you like to leave a message?”, said the assistant.

ETEA 2017
English
Elimination Tool:

A) The assistant told that he is busy and asked me to leave a message.
B) The assistant told that he is busy and ask me to leave a message
C) The assistant told that he was busy and asked me to leave a message.
D) The assistant told that he was busy and asked me to leave a message.

Choose the correct sentence.

ETEA 2017
English
Elimination Tool:

A) The village folk were present.
B) The village folk was present.
C) The village folks were present.
D) The village folks was present

I enjoy ________ tennis

ETEA 2017
English
Elimination Tool:

A) To play
B) Plays
C) Playing
D) To playing

Choose the correct sentence.

ETEA 2017
English
Elimination Tool:

A) How long your wearing glasses ?
B) How long do you wear the glasses ?
C) How long you wear glasses ?
D) How long have you been wearing glasses ?

The rules forbid passenger to cross the railway line.

ETEA 2017
English
Elimination Tool:

A) Passenger was forbidden by the rules to cross the railway line.
B) Passenger are being forbidden by the rules to cross the railway line.
C) Passengers are forbidden by the rules to cross the railway line.
D) Passenger is forbid by the rules to cross the rail way line.

Why did your supervisor take such a strong disciplinary action when you were innocent ?

ETEA 2017
English
Elimination Tool:

A) Why has such a strong disciplinary action taken by your supervisor when you were innocent ?
B) Why was such a strong disciplinary action being taken by your supervisor when you were innocent ?
C) Why was such a strong disciplinary action taken by your supervisor when you were innocent ?
D) Why such a strong disciplinary action was taken by your supervisor when you were innocent?

He is grieving ___________ his deceased father.

ETEA 2017
English
Elimination Tool:

A) At
B) For
C) On
D) Over

Though Aleem is poor _________ he is honest.

ETEA 2017
English
Elimination Tool:

A) But
B) Nevertheless
C) Yet
D) Still

Choose the antonym from the word “ABROGATE”.

ETEA 2017
English
Elimination Tool:

A) Transgress
B) Signify
C) Alleviate
D) Ratify

Choose the correct sentence.

ETEA 2017
English
Elimination Tool:

A) Naila was exhausted that she lain down for a nap
B) Naila was so exhausted that she laid down for a nap
C) Naila was so exhausted that she was lying down for a nap.
D) Naila was so exhausted that she will lay down for a nap

Chose the antonym of the word “UNTENABLE”

ETEA 2017
English
Elimination Tool:

A) Tender
B) Sheepish
C) Supportable
D) Tremulous

Every person must learn ______________ ?

ETEA 2017
English
Elimination Tool:

A) That how wisely his time can be used.
B) To make wise use of his time.
C) That this time need a wise uses.
D) To using his time in a wisely manner

A *thrifty buyer purchases fruits and vegetables in season.

(The under lined word nearly means)

ETEA 2017
English
Elimination Tool:

A) Carefull
B) Professional
C) Disinterested
D) Healthy

Choose the synonym for the word “ABRIDGE”.

ETEA 2017
English
Elimination Tool:

A) To make a bridge
B) Shorten
C) Magnify
D) Divert

It is a general perception that doctors have a *callous disregard for feeling of others;

(The underlined word nearly means)

ETEA 2017
English
Elimination Tool:

A) Respectable
B) Careful
C) Unfeeling
D) Sensitive

That a driver * swerves in order to avoid an accident can be proven by examining themarks on the pavements.

(The underlined word nearly means)

ETEA 2017
English
Elimination Tool:

A) Stops quickly
B) Turns sharply
C) Hits something else
D) Goes backward

He asked me what my name was and what I did

ETEA 2017
English
Elimination Tool:

A) He said to me, ’’What was my name and what did I do?”
B) He said to me, ’’What is your name and what do you do?”
C) He said to me, ’’What my name was and what I did?”
D) He said to me, ’’What his name was and what did he do?”

While the city has earned record revenue this year, ________ well behind in exports:

ETEA 2017
English
Elimination Tool:

A) It still lag
B) It still lags
C) It lag still
D) It lags still

Colloidal particles can be separated by using:

ETEA 2017
Chemistry
Solution and Colloids
Colligative Properties of Solutions
Elimination Tool:

A) Ordinary filter paper
B) Coarse filter paper
C) Fine Filter paper
D) Extremely fine filter paper

Kolbe’s electrolysis of sodium butyrate CH3CH2CH2COONa gives:

ETEA 2017
Chemistry
Elimination Tool:

A) C6H12
B) C6H14
C) C5H10
D) C5H12

The IUPAC name of the compound given below:

ETEA 2017
Chemistry
Elimination Tool:

A) m-nitro benzoic acid
B) o-nitro benzene methanoic acid
C) o-nitro benzoic acid
D) None of the above

Excess of Ag2CrO4 was dissolved in distilled water its solubility was found to be 1.3×10-4mol dm-3. What is the solubility product:

ETEA 2017
Chemistry
Elimination Tool:

A) Ksp=[1.3×10-4]2[1.3×10-4]
B) Ksp=[2.6×10-4]2[1.3×10-4]
C) Ksp=[1.3×10-8][1.3×10-4]
D) Ksp=[1.3×10-8]2[1.3×10-4]2

Magnalium is an alloy of ______.

ETEA 2017
Chemistry
Periodicity in Elements
Introduction to the Periodic Table
Elimination Tool:

A) Magnesium and Lead
B) Magnesium and Aluminium
C) Aluminium and Zinc
D) Aluminium and Mercury

Which ion is stable in aqueous solution ?

ETEA 2017
Chemistry
Elimination Tool:

A) Sc3+
B) Li2+
C) Ba3+
D) Na+

KOH (alcoholic) + CH3 (CH3) 2 CH2Br (1), The reactants in the condition given will undergo:

ETEA 2017
Chemistry
Elimination Tool:

A) Nucleophilic substitution reaction.
B) Elimination reaction.
C) Nucleophilic addition.
D) None of the above.

Consider the following reactions

i.C2H2 (g) +H2 (g)→C2H6 (g) ii.N2 (g)+3H2→2NH3(g)

Choose the catalysts employed for the reaction.

ETEA 2017
Chemistry
Elimination Tool:

A) Ni for both reactions (i) and (ii)
B) Fe2O3for both the reactions (i) and (ii)
C) Ni for the reaction (i) and Fe2O3 for (ii)
D) Fe2O3 for the reaction (i) and Ni(ii)

Which of the following radiations cannot cause excitation in the molecule ?

ETEA 2017
Chemistry
Elimination Tool:

A) Red Colour
B) Green Colour
C) Ultra Voilet
D) None of the above

A container is having mixture of gases, 20% ammonia, 30% hydrogen and 50% oxygen under 50 a.t.m pressure choose the correct partial pressure respectively

ETEA 2017
Chemistry
Elimination Tool:

A) 10 atm, 25 atm, 15 atm
B) 10 atm, 15 atm, 25 atm
C) 25atm, 10 atm, 15 atm
D) 15 atm, 25 atm, 10 atm

Which cation is unstable in aqueous solution?

ETEA 2017
Chemistry
Elimination Tool:

A) Sb3+
B) Bi3+
C) Sn3+
D) Fe3+

Coagulation of proteins may be caused by:

ETEA 2017
Chemistry
Elimination Tool:

A) Heat
B) Change in pH
C) Heavy metal salts
D) All of the above

Choose the True product of the following reaction?

CH3C≡N+2H2O+HCl→

ETEA 2017
Chemistry
Elimination Tool:

A) CH3COOH +NH3
B) CH3COOH +NH4Cl
C) CH3COCl +NH3
D) CH3CONH2

The less energetic and more stable compound among the following is:

ETEA 2017
Chemistry
Hydrocarbons
Alkenes
Elimination Tool:

A) Cyclobutane
B) Hex-1-ene
C) Cyclopropane
D) Propene

The oxidation of pent-2-one with nascent oxygen gives:

ETEA 2017
Chemistry
Aldehydes and Ketones
Reactivity and Reactions of Carbonyl Group
Elimination Tool:

A) Propanal
B) Propanoic acid
C) Ethanoic acid
D) Both B and C

Many hexaaqua complex ions can undergo reaction with water as given below

[Fe(H2O)6]+2 aq + H2O⇌[Fe(H2O)5OH]+ + H3O+

The reaction is classed as:

ETEA 2017
Chemistry
Elimination Tool:

A) Redox reaction
B) Acid base reaction
C) Substitution reaction
D) Decomposition reaction

The number of chiral centres in a molecular of 5-bromo 3-chloro hexan-2-ol is/are:

ETEA 2017
Chemistry
Fundamental Principles of Organic Chemistry
Introduction to Fundamental Principles of Organic Chemistry
Elimination Tool:

A) 1
B) 3
C) 2
D) 5

Choose the correct statement about cycloakanes:

ETEA 2017
Chemistry
Hydrocarbons
Alkanes and Paraffins
Elimination Tool:

A) Cyclopropane and cyclobutane are liquids at room temperature.
B) Cycloalkanes are insoluble in ethanol and ether but soluble in water.
C) Their melting and boiling points show a gradual increase with increases molecular weight.
D) Both (B) & (C) are correct

OH-(alcoholic) +CH3(CH2)2Br- →

Product+Product

The nature of OH in the above reaction is:

ETEA 2017
Chemistry
Alkyl Halides and Amines
Reactivity and Reactions of Alkyl Halides
Elimination Tool:

A) Nucleophile
B) Lewis base
C) Ligand
D) All of the above

The bond energy of H2 molecule (H2→2H) is:

ETEA 2017
Chemistry
Thermochemistry
Heat Capacity and Calorimetry
Elimination Tool:

A) 436Kj/mol
B) 40.7 Kj/mol
C) 272 Kj/mol
D) 436÷Avagadros no Kj/mol

Arrange the following oxide of chromium in increasing acidic character:

ETEA 2017
Chemistry
Elimination Tool:

A) CrO> Cr2O3> CrO3
B) CrO3> Cr2O3>CrO
C) Cr2O3 >CrO>CrO3
D) CrO3>CrO> Cr2O3

The compound which can form hydrogen bond with water is:

ETEA 2017
Chemistry
Fundamental Principles of Organic Chemistry
Introduction to Fundamental Principles of Organic Chemistry
Elimination Tool:

A) CH3–O-CH3
B) CH3 –CH2 -OH
C) CH3 –CH2-NH2
D) None of the above.

Which one is a strong nucleophile:

ETEA 2017
Chemistry
Fundamental Principles of Organic Chemistry
Introduction to Fundamental Principles of Organic Chemistry
Elimination Tool:

A) C6 H5 –O
B) H-O-
C) NH3
D) C2 H5 –O

The Screening Effect is also called:

ETEA 2017
Chemistry
Periodicity in Elements
Introduction to the Periodic Table
Elimination Tool:

A) Shielding effect
B) Transition effect
C) Intervening effect
D) Electronic effect

The compound with most exothermic lattice energy is:

ETEA 2017
Chemistry
Thermochemistry
Heat Capacity and Calorimetry
Elimination Tool:

A) CaCl2
B) K2O
C) CaO
D) BaCl2

At standard conditions 45 liters of oxygen gas weight about 64 g, where as 45 liters of hydrogen weight only 4g. Which gas defuse faster ? Calculate how much faster.

ETEA 2017
Chemistry
Elimination Tool:

A) Hydrogen,4ɤO2
B) Hydrogen,2ɤO2
C) Oxygen,8ɤH2
D) Oxygen,3 ɤH2

Chlorine gas dissolves in water to some extent to give:

ETEA 2017
Chemistry
Elimination Tool:

A) Yellow Colored solution
B) Greenish Colored solution
C) Bluish Colored solution
D) Colorless solution

Choose the molecule that could not be represented by single electronic structure formula:

ETEA 2017
Chemistry
Elimination Tool:

A) CH4
B) H2O
C) SO2
D) O2

Which group when attached to benzene will increase its reactivity:

ETEA 2017
Chemistry
Hydrocarbons
Reactions of Benzene
Elimination Tool:

A) –NH4+
B) –NH3
C) –C≡N
D) –COR

In Saturated fatty acids more hydrogen are not accommodated because of:

ETEA 2017
Chemistry
Elimination Tool:

A) Presence of single bonds between carbon atoms.
B) Presence of Double bonds between carbon atoms
C) Presence of Triple bonds between carbon atoms.
D) Absence of bond between carbon atoms.

Ka values of some compound are given below, select the correct order of acidic strength:

i.H2O ⇌H++OH-Ka=1×10-14

ii. ROH⇌RO-+H+Ka=1×10-18

iii. RCOOH⇌RCOO-+H+Ka=1×10-5

iv.C6H5OH⇌C6H5O-+ H+Ka=1×10-10

ETEA 2017
Chemistry
Elimination Tool:

A) ROH> H2O> C6H5OH>RCOOH
B) C6H5OH > H2O> ROH > RCOOH
C) RCOOH > C6H5OH > H2O > ROH
D) RCOOH > ROH > C6H5OH > H2O

CH3CH2 NH2+ C2H5 -C-C2 H5→ Product:

ETEA 2017
Chemistry
Alkyl Halides and Amines
Introduction to Alkyl Halides and Amines
Elimination Tool:

A) Schiff’s salt
B) Diazonium salt
C) Amide D.Imine
D) Amide

Which polyatomic anion is unstable in solution ?

ETEA 2017
Chemistry
Elimination Tool:

A) BO2-
B) SnO32
C) S2O34-
D) MnO42-

In movies during fight a blood red solution is using as an artificial blood. Which of the following complex ion is used for this solution ?

ETEA 2017
Chemistry
d and f Block Elements
Elimination Tool:

A) [Fe(H2 O)6 ]+2
B) [Cu(NH3 )4 (H2 O)2 ]+2
C) [Fe (SCN) (H2 O)5 ]+2
D) [Fe(H2 O)6 ]

The range of projectile is the same for two angles which are mutually:

ETEA 2017
Physics
Motion in Two Dimensions
Maximum height and range of projectile
Elimination Tool:

A) Perpendicular
B) Supplementary
C) Complementary
D) 270̇°

What is the product when chlorine gas is passed over element silicon in powdered state and heated it produce colorless liquid having the formula?

ETEA 2017
Chemistry
s and p Block Elements
General Behaviour of Alkali and Alkaline Earth Metals
Elimination Tool:

A) SiCl2
B) SiCl4
C) Si2CI3
D) SiCl

The existence of H22+is not possible because

ETEA 2017
Chemistry
Elimination Tool:

A) It would be disproportion
B) It would be ratio active
C) It violates the pauli exclusion principle
D) No H-H bond would form

Choose the incorrect statement about corrosion:

ETEA 2017
Chemistry
Elimination Tool:

A) Corrosion cannot be eliminated completely
B) Employing modern techniques corrosion can be completely eliminates.
C) Corrosion process can be slowed down by certain methods.
D) The presence of acidic oxide in the environment can accelerate the process of corrosion.

The compound which can be hydrolyzed by means of water is:

ETEA 2017
Chemistry
s and p Block Elements
Introduction to s and p Block Elements
Elimination Tool:

A) CCI4
B) SiCl4
C) CH4
D) None of the above

Amorphous solids are made by fusing silicates with:

ETEA 2017
Chemistry
s and p Block Elements
General Behaviour of Alkali and Alkaline Earth Metals
Elimination Tool:

A) Boric acid B
B) Aluminum oxide
C) Phosphorus pent oxide
D) All of the above

What type of hybridization is/are present in Hex-4-ene 1-yne:

ETEA 2017
Chemistry
Elimination Tool:

A) Sp2
B) Sp
C) Sp and Sp2
D) Sp. Sp2. Sp3

The compound which purely acidic character is:

ETEA 2017
Chemistry
s and p Block Elements
Introduction to s and p Block Elements
Elimination Tool:

A) Mg (OH)2
B) AI(OH)3
C) Si (OH)4
D) None of the above

Which compound will undergo substitution reaction faster than benzene ?

ETEA 2017
Chemistry
Elimination Tool:

A) Option A
B) Option B
C) Option C
D) Option D

Four beakers containing ethanol, ethanal, propanone and phenol separately. Aqueous bromine was added to each beaker. A white ppt was produced in one beaker. This beaker contains.

ETEA 2017
Chemistry
Alcohol, Phenols, and Ethers
Elimination Tool:

A) Ethanol
B) Phenol
C) Ethanal
D) Propanone

Coordination number six complex having d2Sp3 hybridization exist in:

ETEA 2017
Chemistry
Elimination Tool:

A) Tetrahedral shape
B) Square planar shape
C) Trigonalbipyramidal shape
D) Octahedral shape

AlBr3 which is used in the alkylation of benzene possesses the properties of:

ETEA 2017
Chemistry
Elimination Tool:

A) A catalyst
B) A Lewis acid
C) An electron deficient specie
D) All of the above

Propene reacts with hypochlorous acid to form

ETEA 2017
Chemistry
Elimination Tool:

A) CH3–CH–CH2O ⋮ ClOHCl
B) CH3–CH–CH2Cl ⋮ OH
C) CH3–CH2–CH2Cl ⋮ OH
D) CH3–CH–CH2 ⋮ OH

To differentiate between the white ppt of AgCl and off-white ppt of AgBr we use:

ETEA 2017
Chemistry
d and f Block Elements
Elimination Tool:

A) Dil.solution of NaOH
B) Dil.solution of Pb(NO3)2
C) Dil.solution of NH3
D) Dil.solution of FeCl3

10.0 dm3 gas cylinder containing mixture of various gases 50cm3 of nitrogen gas is in the mixture what is the concentration of N2 gas in part per billion (ppb).

ETEA 2017
Chemistry
Elimination Tool:

A) Option A
B) Option B
C) Option C
D) Option D

Choose Mercaptans of the following:

ETEA 2017
Chemistry
Elimination Tool:

A) R–S–R
B) R–S–H
C) .R–O–R
D) R–O–H

Choose acids that are showing leveling effect.

i) HClO4 ii)HI iii) HCI iv) HF

ETEA 2017
Chemistry
Acids, Bases and Salts
Strength of Acid and Bases
Elimination Tool:

A) i & iv
B) i, iii, & iv
C) iii & iv
D) i, ii, & iii

The compound which cannot be hydrolyzed by water is

ETEA 2017
Chemistry
Elimination Tool:

A) CH3–CH2–C–Br
B) CH3–C–O–C– CH3
C) CH3– CH2–C–NH2
D) None of the above

If the primer annealing temperature is increased to 940C . What will happen ?

ETEA 2017
Chemistry
Macromolecules
Introduction and Structure of Polymers
Elimination Tool:

A) Annealing
B) Extension
C) No Annealing
D) Primer-dimer formation

Which of the following atoms in the given oxidation state have the highest electro negativity.

ETEA 2017
Chemistry
Elimination Tool:

A) Mo(ii)
B) Mo(iii)
C) Mo(v)
D) Mo(vi)

A wave of amplitude 20mm has intensity I. another wave of the same frequency but of amplitude 5mm has intensity Iy. What is Ix/Ty?

ETEA 2017
Physics
Wave Motion and Sound
Resonance of Air Column and Organ Pipes
Elimination Tool:

A) 2
B) 4
C) 16
D) 256

What is the name of the carboxylic acid given below?

HOOC(CH2)3COOH

ETEA 2017
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) Propanedioic acid
Show Explanation
B) Pentane dioic acid
Show Explanation
C) Pentane dicarboxylic acid
Show Explanation
D) Propane dicarboxylic acid
Show Explanation

Condidering the molecular orbital theory (MOT), chooses the correct relative energies order.

ETEA 2017
Chemistry
Chemical Bonding
VSEPR Theory
Elimination Tool:

A) σ1s<σ*1s< σ2s< σ* 2s< σ2px< π2py = π2pz B) σ1s<σ*1s< σ2s<σ*2s< π2py = π2pz<π2px C) σ1s<σ*1s< σ2s<σ*2s< π2px = π2pz< π2py D) σ1s<σ*1s< σ2s<σ*2s< π2py< π2pz< π2px

Consider the following reaction

2FeCl3 (aq)+6KI(aq)→2Fe2(aq)+6KCl(aq)+I2(s)

Rate=[ FeCl3]1[KI]2

Choose the correct molecularity and the order of reaction respectively.

ETEA 2017
Chemistry
Reaction Kinetics
Order of reaction and its determination
Elimination Tool:

A) 2 and 2
B) 6 and 2
C) 8 and 3
D) 8 and 2

If CO2 level increase from the normal level, what will happen?

ETEA 2017
Chemistry
Environmental Chemistry
Introduction and Types of Pollution
Elimination Tool:

A) Decrease in sea level
B) Increase in sea level
C) Longer winter season
D) Daytime will increase

Alkene+O3→Ozonide “Zn+H2O”→Propanone+Propanal, The IUPAC name of alkene is:

ETEA 2017
Chemistry
Elimination Tool:

A) Hex-2-ene
B) Hex-3-ene
C) 2-methyl pent-1-ene
D) 2-methyl pent-2-ene

Compound resistant to thermal decomposition is

ETEA 2017
Chemistry
s and p Block Elements
General Behaviour of Alkali and Alkaline Earth Metals
Elimination Tool:

A) Li2CO3
B) NaNO3
C) Ba(NO3)2
D) Na2CO3

Phosphorus (white) catches fire in air and burns with the formation of white smoke the product formed is:

ETEA 2017
Chemistry
Elimination Tool:

A) Phosphoruss (iii) oxide
B) Phosphoruss (v) oxide
C) Phosphorus (ii) oxide
D) Both (A) & (B)

The experiments by Hershey and Chase helped confirm that DNA was the hereditary material on the basis of the finding that :

ETEA 2017
Biology
Chromosomes and DNA
DNA Replication
Elimination Tool:

A) Radioactive phage were found in the pellet
B) Radioactive cells were found in the supernatant
C) Radioactive sulfur was found inside the cell
D) Radioactive phosphorus was found in the cell

XX-XY type of sex determination pattern is present in which of the following organisms?

ETEA 2017
Biology
Variation and Genetics
Sex Determination
Elimination Tool:

A) Humans
Show Explanation
B) Butterflies
Show Explanation
C) Grasshopper
Show Explanation
D) Drosophila
Show Explanation
E) Both A and D
Show Explanation

Nervous system that prepares itself for fight or flight:

ETEA 2017
Biology
Elimination Tool:

A) Para sympathetic
B) Sympathetic
C) Somatic
D) Peripheral

Otitis media is an inflammation of which part of the

ETEA 2017
Biology
Coordination and Control
Disorders of the Nervous System
Elimination Tool:

A) Brain
B) Middle ear
C) Lungs
D) Urinary tract

Acetabularia mediterranea is:

ETEA 2017
Biology
Elimination Tool:

A) A fungus
B) An algae
C) A protozoan
D) A prokaryote

In a mating between two individuals those are heterozygous for a recessive lethal allele.

What genotypic ratio (homozygous dominant : heterozygous : homozygous recessive) would you expect to observe in the offspring?

ETEA 2017
Biology
Elimination Tool:

A) 1:2:1
B) 3:1:1
C) 1:2:0
D) 0:2:1

Implantation of the embryo takes place in which week of pregnancy?

ETEA 2017
Biology
Growth and Development
Embryonic Development
Elimination Tool:

A) 1st
B) 2nd
C) 3rd
D) 4th

For which purpose myeloma cells (cancerous B.lymphocytes) are used in the production of monoclonal antibodies?

ETEA 2017
Biology
Transport
Elimination Tool:

A) Increased rate of cell division
B) Immunization with antigen
C) To avoid contamination
D) As nutrient in media

Innate behaviour is:

ETEA 2017
Biology
Coordination and Control
Nature and Types of Behaviour
Elimination Tool:

A) Acquired through learning
B) Acquired through observation
C) Is part of the inherited structure
D) None of the above options are correct

Which of the following is a non-sense codon?

ETEA 2017
Biology
Chromosomes and DNA
DNA Replication
Elimination Tool:

A) UGA
B) UAU
C) CAU
D) GAU

One of the following statement is true regarding Basidiomycota.

ETEA 2017
Biology
Elimination Tool:

A) They are most important source of antibiotics
B) They have no known sexual stage.
C) Hyphae fuse to give rise to dikaryotic mycelium
D) The vast majority of spores are formed asexually

If medulla oblongata of a person brain is damaged which of the following process will be disturbed?

ETEA 2017
Biology
Coordination and Control
Central Nervous System
Elimination Tool:

A) Thinking
B) Sleep
C) Thirst
D) Swallowing

Of 100 ml of arterial blood, oxygen provided to the tissues is:

ETEA 2017
Biology
Elimination Tool:

A) 2ml
B) 3ml
C) 4ml
D) 5ml

Which cell are the responsible for movement of sugar as per mass flow hypothesis.

ETEA 2017
Biology
Transport
Elimination Tool:

A) Tracheids, vessels, elements
B) Tracheids, Companion cells
C) Vessels elements, companion cells
D) Companion cell, sieve-tubes

For the location / detection of a gene in a DNA library which of the following is used ?

ETEA 2017
Biology
Biotechnology
Genetic Engineering & its tools
Elimination Tool:

A) Primer
B) Probe
C) Restriction enzyme
D) Taq Polymerase

What will happen if a vector (plasmid) is cut with a different restriction enzyme which cuts the external DNA to be incorporated in the vector (plasmid) ?

ETEA 2017
Biology
Biotechnology
Genetic Engineering & its tools
Elimination Tool:

A) Ligation
B) No ligation
C) Tight ligation
D) Cloning

How many nucleotides are in 12 mRNA codons?

ETEA 2017
Biology
Chromosomes and DNA
The Chemical Nature of DNA
Elimination Tool:

A) 12
B) 24
C) 36
D) 48

In order to see various aspects of specimen a three dimensional image of the object can be produced using:

ETEA 2017
Biology
Elimination Tool:

A) Compound microscope
B) Dark microscope
C) Transmission electron microscope
D) Scanning electron microscope

PGAL is formed during the oxidative phase of ______.

ETEA 2017
Biology
Bioenergetics
Respiration Mechanism – Glycolysis to Electron Transport Chain
Elimination Tool:

A) Calvin Cycle
B) Glycolysis
C) Oxidative Phosphorylation
D) None of the above options are correct.

Most conspicuous sea-weeds are:

ETEA 2017
Biology
Elimination Tool:

A) Red-algae
B) Blue-algae
C) Green-algae
D) Brown-algae

In which of the following disorders the structure and function of normal spinal cord is damaged?

ETEA 2017
Biology
Coordination and Control
Disorders of the Nervous System
Elimination Tool:

A) Arthritis
B) Sciatica
C) Spondylosis
D) Disc slip

If a new born baby possesses carboxyhemoglobin instead of the oxyhemoglobin, the condition may be:

ETEA 2017
Biology
Elimination Tool:

A) Embolism
B) Atherosclensis
C) Cyanosis
D) Arteriosclerosis

The three non-infective genes in HIV are;

ETEA 2017
Biology
Elimination Tool:

A) gag, pol, rev
B) gag, pol, vpu
C) gag, pol, vpr
D) gag, pol, env

In the intestine, amino acids are absorbed by?

ETEA 2017
Biology
Nutrition
Digestion and Absorption
Elimination Tool:

A) Capillaries
B) Lacteals
C) Both A and B
D) None of the above options are correct

The first that oxygenated the atmosphere were:

ETEA 2017
Biology
Elimination Tool:

A) Cyanobacteria
B) Phototrophic organisms
C) Anaerobic organisms
D) All of the above

What will happen if a nucleotide is deleted from a gene having 9 nucleotides in its transcriptional unit?

ETEA 2017
Biology
Chromosomes and DNA
Mutations
Elimination Tool:

A) Change in Phenotype
B) No change in Phenotype
C) Synthesis of 3 amino acids.
D) Synthesis of 4 amino acids.

The sprouting gametophyte of a moss consists of a filamentous, branched structure called:

ETEA 2017
Biology
Elimination Tool:

A) Mycelium
B) Hyphae
C) Protonema
D) Bud

DNA polymerase adds nucleotides to the 3’ end of the primer so the direction of replication will be?

ETEA 2017
Biology
Chromosomes and DNA
DNA Replication
Elimination Tool:

A) 5’ to 3’
B) 3’ to 5’
C) 3’ end of the primer to 3’ end of template strand
D) 3’ end of the template strand to the 3’ end of the primer

An acrinus is composed of:

ETEA 2017
Biology
Elimination Tool:

A) 10-20 Acinars
B) 20-40 Acinars
C) 20-30 Acinars
D) 30-40 Acinars

Sarcolemma is the membrane around?

ETEA 2017
Biology
Support and Movement
Ultrastructure & Mechanism of Skeletal Muscle Contraction
Elimination Tool:

A) Bone
B) Joints
C) Muscle fiber
D) Heart

Poisonous red-tides in coastal area are caused by the blooms

ETEA 2017
Biology
Elimination Tool:

A) Euglenoids
B) Rhodophyta
C) Diatoms
D) Dinoflagellates

Under UV illuminator, DNA bands are seen in agarose gel due to which of the following?

ETEA 2017
Biology
Biotechnology
Genetic Engineering & its tools
Elimination Tool:

A) Agarose
B) Charge in DNA
C) Fluorescent dye
D) Radioactive dye

2-FADH2 can yield energy:

ETEA 2017
Biology
Elimination Tool:

A) 4 ATP
B) 8 ATP
C) 6 ATP
D) 10 ATP

Which of the following vaccine has least side effects:

ETEA 2017
Biology
Variety of Life
Elimination Tool:

A) Attenuated vaccine
B) Killed vaccine
C) Subunit vaccine
D) Toxoid vaccine

ABO Blood groups are an example of:

ETEA 2017
Biology
Elimination Tool:

A) Multiple alleles and incomplete dominance
B) Co dominance and incomplete dominance
C) Incomplete dominance only
D) Multiple alleles and co dominance

If in solution some bacteria infected by a certain phages had somehow developed the ability to make a particular amino acid that was not in their genes before. What would be the possible explanation to his new ability ?

ETEA 2017
Biology
Kingdom Prokaryote
Growth and Reproduction in Bacteria
Elimination Tool:

A) Induction
B) Transformation
C) Transduction
D) Conjugation

Which statement about thylakoids in eukaryotes is not correct ?

ETEA 2017
Biology
Elimination Tool:

A) Thylakoids are assembled into stacks
B) Thylakoids exist as a maze of folded membranes.
C) The space surrounding thylakoids is called stroma.
D) Thylakoids contain chlorophyll.

What event is thought to have contributed to the evolution of eukaryotes ?

ETEA 2017
Biology
Elimination Tool:

A) Global warming
B) Glaciations
C) Volcanic activity
D) Oxygenation of the atmosphere

Sphagnum is also called as:

ETEA 2017
Biology
Elimination Tool:

A) Sphenopsida
B) Peat Moss
C) Club moss
D) Maiden hair ferns

When the sperm count is high, inhibin hormone release increases which:

ETEA 2017
Biology
Reproduction
Reproduction in Males
Elimination Tool:

A) Inhibits anterior pituitary release follicle stimulating g hormone
B) Increase anterior pituitary release of follicle stimulating hormone
C) Inhibit release of luteinizing hormone
D) Increaserelease of luteinizing hormoneave

Which one is not an opportunistic disease related to HIV infection:

ETEA 2017
Biology
Variety of Life
Elimination Tool:

A) Destruction of body immune system
B) Recurrent pneumonia
C) Pulmonary tuberculosis
D) Toxoplasmosis

For callus formation, auxin and cytokinin are required in which ratio?

ETEA 2017
Biology
Coordination and Control
Coordination in Plants
Elimination Tool:

A) Balanced
B) Only cytokinin required
C) Low auxin, very high cytokinin
D) Onlyauxin

Approximately how much calories of free energy is stored in plant biomass for every mole of CO2 fixed during photosynthesis ?

ETEA 2017
Biology
Bioenergetics
Light Independent Mechanism of Photosynthesis
Elimination Tool:

A) 110
B) 112
C) 114
D) 116

Rhizobium belongs to:

ETEA 2017
Biology
Elimination Tool:

A) Beta-protobacteria
B) Gama-protobacteria
C) Alpha-protobacteria
D) Delta-protobacteria

Which of the following Nutrient is incorrectly paired with its function in plant ?

ETEA 2017
Biology
Nutrition
Autotrophic Nutrition
Elimination Tool:

A) Iron-cytochromes and chlorophyll
B) Molybdenum cell permeability
C) Cobalt- Required by nitrogen fixers
D) Calcium- formation of cell wall.

Macronutrients are:

ETEA 2017
Biology
Elimination Tool:

A) K-Mg-N-P
B) Cu-Mg-Mn-S
C) Mn-S-P-Cu
D) Mg-Mn-Ca-P

If black and white true breeding mice are mated and they result is all gray offspring, what inheritance pattern would this be indictive of ?

ETEA 2017
Biology
Elimination Tool:

A) Dominance
B) Co dominance
C) Multiple alleies
D) Incomplete dominance

The usual position of the two centrioles in relation to each other is at right angle in:

ETEA 2017
Biology
Elimination Tool:

A) Higher plant cells
B) Lower plant cells
C) Animals cells
D) Both (B) &(C)

If one of the following components is missing , bacteria can not increase the number of its plasmid copies.

ETEA 2017
Biology
Kingdom Prokaryote
Size and Structure of Bacteria
Elimination Tool:

A) Antibiotic resistance gene.
B) Origin of replication
C) Cloning site
D) Ligases enzymes