ETEA MDCAT 2017

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

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

One of the following statement is true regarding Basidiomycota.

Which seedless plant is a renewable source of energy ?

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

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

The three non-infective genes in HIV are;

If a disorder is not present in a child family but the fetus itself is infected before birth, it is known as:

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

Nervous system that prepares itself for fight or flight:

Macronutrients are:

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

Which of the following is a non-sense codon?

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

Which of the following vaccine has least side effects:

Double fertilization occurs in:

Which statement about thylakoids in eukaryotes is not correct ?

Otitis media is an inflammation of which part of the

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 ?

Identify in which of the following the genetic information is catalyzed using reverse transcription;

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

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

Which of the following do not play a role in intra cellular movement?

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

Which of the following is the suitable vector to be incorporated with the large external DNA fragment?

In which of the following the female workers are sterile?

Acetabularia mediterranea is:

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

How many nucleotides are in 12 mRNA codons?

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

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

ABO Blood groups are an example of:

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

Which of the locomotor organ would likely be the shortest?

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

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

The first that oxygenated the atmosphere were:

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

In the intestine amino acids are absorbed by?

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

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

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

Most conspicuous sea-weeds are:

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)?

Sarcolemma is the membrane around?

PGAL is formed during the oxidative phase of ______.

Rhizobium belongs to:

An acrinus is composed of:

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

Innate behaviour is:

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

Identify the mismatch pair in the following:

Sphagnum is also called as:

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

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

After buying green bananas or unripe avocadoes, they can be kept in a brown bag to ripen. The hormones released by the fruit and trapped in the bag is probably

The deficiency of calcitonin results in ?

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

2-FADH2 can yield energy:

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?

Which ion is stable in aqueous solution ?

In movies during the fight, a blood-red solution is used as artificial blood. Which of the following complex ions is used for this solution?

Coordination number six complex having d2Sp3 hybridization exist in:

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

The IUPAC name of the compound given below:

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

The existence of H22+is not possible because

Which group when attached to benzene will increase its reactivity:

Consider the following reaction:2FeCl_{3 (aq)} + 6KI_(aq)→2Fe_2(aq) + 6KCl_(aq) + I_2(s)Rate = [ FeCl₃]¹[KI]² Choose the correct molecularity and the order of reaction respectively.

Choose the correct statement about cycloakanes:

Amorphous solids are made by fusing silicates with:

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

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.

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

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

Coagulation of proteins may be caused by:

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

Which one is a strong nucleophile:

Chlorine gas dissolves in water to some extent to give:

CH3CH2 NH2+ C2H5 -C-C2 H5→ Product:

If the primer annealing temperature is increased to 94°C . What will happen ?

Choose acids that are showing leveling effect:i) HClO4 ii)HI iii) HCI iv) HF

Colloidal particles can be separated by using:

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

The compound which purely acidic character is:

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

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

The compound which can form hydrogen bond with water is:

Ka values of some compound are given below, select the correct order of acidic strength:i.H2O ⇌H++OH-Ka=1x10-14 ii. ROH⇌RO-+H+Ka=1x10-18 iii. RCOOH⇌RCOO-+H+Ka=1x10-5 iv.C6H5OH⇌C6H5O-+ H+Ka=1x10-10

The compound which cannot be hydrolyzed by water is

What is the name of the carboxylic acid given below?HOOC(CH₂)₃COOH

Compound resistant to thermal decomposition is:

Excess of Ag2CrO4 was dissolved in distilled water its solubility was found to be 1.3x10-4mol dm-3. What is the solubility product:

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

Which compound will undergo substitution reaction faster than benzene ?

The compound with most exothermic lattice energy is:

OH^-(alcoholic) +CH₃(CH₂)₂Br^- →Product+Product. The nature of OH in the above reaction is:

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

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

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

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

Kolbe’s electrolysis of sodium butyrate CH3CH2CH2COONa gives:

Choose the incorrect statement about corrosion:

The Screening Effect is also called:

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

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

Choose the True product of the following reaction?CH3C≡N+2H2O+HCl→

Which polyatomic anion is unstable in solution ?

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

Consider the following reactionsi.C2H2 (g) +H2 (g)→C2H6 (g) ii.N2 (g)+3H2→2NH3(g)Choose the catalysts employed for the reaction.

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.

Which cation is unstable in aqueous solution?

Arrange the following oxide of chromium in increasing acidic character:

Choose Mercaptans of the following:

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).

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

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

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:

Propene reacts with hypochlorous acid to form

Magnalium is an alloy of ______.

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

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

Choose the anisotropic behavior

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:

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 ?

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:

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:

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

Light of wave 500x10 -9 m falls normally on a plane diffraction grating having 8 x 10 +3 lines per cm. The minimum number of images seen is:

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 :

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 describes what happens?

A tuning fork A produces 4 beats / second with another turning fork B of frequency 280 H_z. When fork A is loaded with a little wax, the beat frequency changes to 2. The frequency of fork A before loading is:

If x-component of a vector is √3 and y-component is 1, then the angle made by the vector along x-axis is:

The moment of inertia of an object does not depend upon:

An electric charge in an accelerated motion produce:

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

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

Before thunder, the hair stands on end. A hair with a mass of 0.50 ng and a charge of 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?

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

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:

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

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?

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

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:

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:

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:

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:

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

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?

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.

What happens when a charge is placed on a soap bubble?

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

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

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?

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

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?

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

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

Which of the following waves cannot be polarized?

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

The frequency of a second’s pendulum is :

A wave of amplitude 20mm has intensity I_x. another wave of the same frequency but of amplitude 5mm has intensity I_y. What is I_x/T_y?

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

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

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

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 ?

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

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:

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

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 ?

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

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

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?

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:

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

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

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

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:

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:

Choose the synonym for the word “Abridge”.

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

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

He is grieving ___________ his deceased father.

Choose the synonym for the word “Attenuate”.

It is a general perception that doctors have a callous disregard for feeling of others;(The underlined word nearly means)

I enjoy ________ tennis

He asked me what my name was and what I did

The rules forbid passengers to cross the railway line.

A thrifty buyer purchases fruits and vegetables in season.(The under lined word nearly means)

Chose the antonym of the word “Untenable”

Choose the antonym from the word “Abrogate”.

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

That a driver swerves in order to avoid an accident can be proven by examining themarks on the pavements.(The underlined word nearly means)

Though Aleem is poor _________ he is honest.

Every person must learn ______________ ?

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

Choose the correct sentence.

Select the most suitable synonym for the given word:BASHFUL

Select the most suitable synonym for the given word:CRUDELY