NEET 2016 — Code C_R_Y

In a testcross involving 𝐹1 dihybrid flies, more parental – type offspring were produced than the recombinant – type offspring. This indicates:

Water soluble pigments found in plant cell vacuoles are:

Which of the following pairs of hormones are not antagonistic (having opposite effects) to each other?

Mitochondria and chloroplast are: (i) Semi – autonomous organelles (ii) Formed by division of pre – existing organelles and they contain DNA but lack protein synthesizing machinery Which one of the following options is correct?

Which of the following is not a feature of the plasmids?

A plant in your garden avoids photorespiratory losses, has improved water use efficiency, shows high rates of photosynthesis at high temperatures and has improved efficiency of nitrogen utilization. In which of the following physiological groups would you assign this plant?

Emerson’s enhancement effect and Red drop have been instrumental in the discovery of:

Which type of tissue correctly matches with its location?

When does the growth rate of a population following the logistic model equal zero? The logistic model is given as 𝑑𝑁 𝑑𝑡⁄ = 𝑟𝑁(1 − 𝑁 𝐾⁄ ):

Which one of the following statements is not true?

Which one of the following statements is wrong?

The avena curvature is used for bioassay of:

Which of the following structures is homologus to the wing of a bird?

Blood pressure in the pulmonary artery is:

Fertilization in humans is practically feasible only if:

In meiosis crossing over is initiated at:

Chrysophytes, Euglenoids, Dinoflagellates and Slime moulds are included in the kingdom:

Lack of relaxation between successive stimuli in sustained muscle contraction is known as:

Identify the correct statement on ‘inhibin’:

Name the chronic respiratory disorder caused mainly by cigarette smoking:

Which of the following most appropriately describes hemophilia?

Select the correct statement:

Which of the following is required as inducer(s) for the expression of Lac operon?

A tall true breeding garden pea plant is crossed with a dwarf true breeding garden pea plant. When the 𝐹1 plants were selfed the resulting genotypes were in the ratio

Which of the following is not a characteristic feature during mitosis in somatic cells?

Which of the following statements is not true for cancer cells in relation to mutations?

One of the major components of cell wall of most fungi is:

Cotyledon of maize grain is called:

Which of the following would appear as the pioneer organisms on bare rocks?

Changes in GnRH pulse frequency in females is controlled by circulating levels of:

Antivenom injection contains preformed antibodies while polio drops that are administered into the body contain:

Photosensitive compound in human eye is made up of:

Specialized epidermal cells surrounding the guard cells are called:

Which of the following features is not present in the Phylum – Arthropoda?

Reduction in pH of blood will:

Which of the following characteristic features always holds true for the corresponding group of animals?

A typical fat molecules is made up of:

Proximal end of the filament of stamen is attached to the:

Which one of the following statements is wrong?

Water vapour comes out from the plant leaf through the stomatal opening. Through the same stomatal opening carbon dioxide diffuses into the plant during photosynthesis. Reason out the above statements using one of following options:

A complex of ribosomes attached to single strand of RNA is known as:

Which one of the following is a characteristic feature of cropland ecosystem?

Which of the following is the most important cause of animals and plants being driven to extinction ?

In a chloroplast the highest number of protons are found in:

Which of the following is not required for any of the techniques of DNA fingerprinting available at present?

The primitive prokaryotes responsible for the production of biogas from the dung of ruminant animals, include the:

Which of the following features is not present in Periplaneta americana?

A system of rotating crops with legume or grass pasture to improve soil structure and fertility is called:

Which of the following is wrongly matched in the given table?

In mammals, which blood vessel would normally carry largest amount of urea?

Pick out the correct statements: (i) Hemophilia is a sex – linked recessive disease (ii) Down’s syndrome is due to aneuploidy (iii) Phenylketonuria is an autosomal recessive gene disorder (iv) Sickle cell anaemia is an autosomal recessive gene disorder

Which of the following guards the opening of hepatopancreatic duct into the duodenum?

Microtubules are the constituents of:

The coconut water from tender coconut represents:

Tricarpellary, syncarpous gynoecium is found in flowers of:

The taq polymerase enzyme is obtained from:

Stems modified into flat green organs performing the functions of leaves are known as:

In higher vertebrates, the immune system can distinguish self – cells and non – self. If this property is lost due to genetic abnormality and it attacks self – cells, then it leads to:

Nomenclature is governed by certain universal rules. Which one of the following is contrary to the rules of nomenclature?

In bryophytes and pteridophytes, transport of male gametes requires:

In context of Amniocentesis, which of the following statement is incorrect? www.vedantu.com 50

In the stomach, gastric acid is secreted by the:

Spindle fibres attach on to:

Which is the National Aquatic Animal of India?

The two polypeptides of human insulin are linked together by:

In which of the following, all three are macronutrients?

Which of the following statements is wrong for viroids?

Analogous structures are a result of:

Select the incorrect statement:

Which one of the following characteristics is not shared by birds and mammals? www.vedantu.com 68

Which of the following statements is not correct?

Seed formation without fertilization in flowering plants involves the process of:

The amino acid Tryptophan is the precursor for the synthesis of:

A river with an inflow of domestic sewage rich in organic waste may result in:

Gause's principle of competitive exclusion states that:

Which of the following is a restriction endonuclease?

Following are the two statements regarding the origin of life: (i) The earliest organisms that appeared on the earth were non-green and presumably anaerobes. (ii) The first autotrophic organisms were the chemoautotrophs that never released oxygen. Of the above statements which one of the following options is correct?

A cell at telophase stage is observed by a student in a plant brought from the field. He tells his teacher that this cell is not like other cells at telophase stage. There is no formation of cell plate and thus the cell is containing more number of chromosomes as compared to other dividing cells. This would result in:

Depletion of which gas in the atmosphere can lead to an increased incidence of skin cancers:

Which one of the following is the starter codon?

The term ecosystem was coined by:

What is the minimum velocity with which a body of mass m must enter a vertical loop of radius R so that it can complete the loop? www.vedantu.com 19

If the magnitude of sum of two vectors is equal to the magnitude of difference of the two vectors, the angle between these vectors is:

At what height from the surface of earth the gravitation potential and the value of g are −5.4 ×107J kg−2 and 6.0 ms−2 respectively? Take the radius of earth as 6400 km:

A long solenoid has 1000 turns. When a current of 4A flows through it the magnetic flux linked with each turn of the solenoid is 4 ×10−3 Wb. The self-inductance of the solenoid is:

An inductor 20 mH, a capacitor 50 μF and a resistor 40 Ω are connected in series across a source of emf V =10si n340 t. The power loss in A.C. circuit is :

Two identical charged spheres suspended from a common point by two massless strings of lengths 𝑙, are initially at a distance d(d < < 𝑙) apart because of their mutual repulsion. The charges begin to leak from both the spheres at a constant rate. As a result, the spheres approach each other with a velocity υ. Then υ varies as a function of the distance 𝑥 between the spheres, as

A capacitor of 2μF is charged as shown in the diagram. When the switch S is turned to position 2, the percentage of its stored energy dissipated is:

A particle moves so that its position vector is given by r = cosωt x ̂ +sinωt y ̂. Where ω is a constant. Which of the following is true?

From a disc of radius R and mass M, a circular hole of diameter R, whose rim passes through the centre is cut. What is the moment of inertia of the remaining part of the disc about a perpendicular axis, passing through the centre?

The ratio of escape velocity at earth (υe) to the escape velocity at a planet (υp) whose radius and mean density are twice as that of earth is:

A potentiometer wire is 100 cm long and a constant potential difference is maintained across it. Two cells are connected in series first to support one another and then in opposite direction. The balance points are obtained at 50 cm and 10 cm from the positive end of the wire in the two cases. The ratio of emf’s is :

A siren emitting a sound of frequency 800 Hz moves away from an observer towards a cliff at a speed of 15 ms−1. Then, the frequency of sound that the observer hears in the echo reflected from the cliff is : (Take velocity of sound in air = 330 ms−1) www.vedantu.com 3

To get output 1 for the following circuit, the correct choice for the input is:

In a diffraction pattern due to a single slit of width ‘a’, the first minimum is observed at an angle 30o when light of wavelength 5000 Å is incident on the slit. The first secondary maximum is observed at an angle of:

When a metallic surface is illuminated with radiation of wavelength λ, the stopping potential is V. If the same surface is illuminated with radiation of wavelength 2λ, the stopping potential is V 4. The threshold wavelength for the metallic surface is:

When an α-particle of mass ‘m’ moving with velocity ‘v’ bombards on a heavy nucleus of charge ‘Ze’, its distance of closest approach from the nucleus depends on m as:

A particle of mass 10 g moves along a circle of radius 6.4 cm with a constant tangential acceleration. What is the magnitude of this acceleration if the kinetic energy of the particle becomes equal to 8 ×10−4 J by the end of the second revolution after the beginning of the motion?

A small signal voltage V(t)= V0 sinωt is applied across an ideal capacitor C:

A disk and a sphere of same radius but different masses roll off on two inclined planes of the same altitude and length. Which one of the two objects gets to the bottom of the plane first?

Coefficient of linear expansion of brass and steel rods are α1 and α2. Lengths of brass and steel rods are 𝑙1 and 𝑙2 respectively. If (𝑙2 − 𝑙1) is maintained same at all temperatures, which one of the following relations holds good?

A astronomical telescope has objective and eyepiece of focal lengths 40 cm and 4 cm respectively. To view an object 200 cm away from the objective, the lenses must be separated by a distance:

A uniform circular disc of radius 50 cm at rest is free to tum about an axis which is perpendicular to its plane and passes through its centre. It is subjected to a torque which produces a constant angular acceleration of 2.0 rad s−2. Its net acceleration in ms−2 at the end of 2.0 s is approximately:

A refrigerator works between 4oC and 30oC. It is required to remove 600 calories of heat every second in order to keep the temperature of the refrigerated space constant. The power required is: (Take 1 cal = 4.2 Joules)

A gas is compressed isothermally to half its initial volume. The same gas is compressed separately through an adiabatic process until its volume is again reduced to half. Then:

The intensity at the maximum in a Young’s double slit experiment is I0. Distance between two slits is d = 5λ, where λ is the wavelength of light used in the experiment. What will be the intensity in front of one of the slits on the screen placed at a distance D =10 d?

Two non-mixing liquids of densities ρ and nρ(n > 1) are put in a container. The height of each liquid is h. A solid cylinder of length L and density d is put in this container. The cylinder floats with its axis vertical and length pL(p < 1) in the denser liquid. The density d is equal to:

Consider the junction diode as ideal. The value of current flowing through AB is:

A car is negotiating a curved road of radius R. The road is banked at an angle θ. The coefficient of friction between the tyres of the car and the road is μs. The maximum safe velocity on this road is:

A long straight wire of radius a carries a steady current I. the current is uniformly distributed over its cross- section. The ratio of the magnetic fields B and B′, at radial distances a 2 and 2a respectively, from the axis of the wire is:

Given the value of Rydberg constant is 107 m−1, the wave number of the last line of the Balmer series in hydrogen spectrum will be:

If the velocity of a particle is υ =At+ Bt2, where A and B are constants, then the distance travelled by it between 1s and 2s is:

The angle of incidence for a ray of light at a refracting surface of a prism is 45o. The angle of prism is 60o. If the ray suffers minimum deviation through the prism, the angle of minimum deviation and refractive index of the material of the prism respectively, are:

The molecules of a given mass of a gas have r.m.s velocity of 200 ms−1 at 27oC and 1.0 ×105 Nm−2 pressure. When the temperature and pressure of the gas are respectively, 127oC and 0.05× 105 Nm−2, the r.m.s. velocity of its molecules in ms−1 is: www.vedantu.com 17

An air column, closed at one end and open at the other, resonates with a tuning fork when the smallest length of the column is 50 cm. The next larger length of the column resonating with the same tuning fork is:

The magnetic susceptibility is negative for:

An electron of mass m and a photon have same energy E. the ratio of de-Broglie wavelengths associated with them is: SS www.vedantu.com 14

A body of mass 1 kg begins to move under the action of a time dependent force F⃗ = (2t î + 3t2 ĵ)N, where î and ĵ are unit vectors along x and y axis. What power will be developed by the force at the time t?

The charge flowing through a resistance R varies with time t as Q =at− bt2 where a and b are positive constants. The total heat produced in R is :

A npn transistor is connected in common emitter configuration in a given amplifier. A load resistance of 800 Ω is connected in the collector circuit and the voltage drop across it is 0.8 V. If the current amplification factor is 0.96 and the input resistance of the circuit is 192 Ω, the voltage gain and the power gain of the amplifier will respectively be:

A piece of ice falls from a height h so that it melts completely. Only one-quarter of the heat produced is absorbed by the ice and all energy of ice gets converted into heat during its fall. The value of h is: [Latent heat of ice is 3.4 × 15 J/kg and g =10 N/kg] www.vedantu.com 23

A square loop ABCD carrying a current i, is placed near and coplanar with a long straight conductor XY carrying a current I, the net force on the loop will be: NATIONAL ELIGIBILITY CUM ENTRANCE TEST Phase-1 (Code:A-P-W) Answers & Solutions Physics www.vedantu.com 2

A uniform rope of length L and mass m1, hangs vertically from a rigid support. A block of mass m2 is attached to the free end of the rope. A transverse pulse of wavelength λ1 is produced at the lower end of the rope. The wavelength of the pulse when it reaches the top of the rope is λ2. The ratio λ2/λ1 is:

A black body is at a temperature of 5760 K. The energy of radiation emitted by the body at wavelength 250 nm is U1, at wavelength 500 nm is U2 and that at 1000 nm is U3. Wien’s constant, b = 2.88× 106 nmK. Which of the following is correct?

Out of the following options which one can be used to produce a propagating electromagnetic wave?

Which one of the following characteristics is associated with adsorption?

The pressure of H2 required to make the potential of H2 – electrode zero in pure water at 298 k is:

The addition of a catalyst during a chemical reaction alters which of the following quantities?

The product formed by the reaction of an aldehyde with a primary amine is:

The correct statement regarding the basicity of aryl amines is:

Equal moles of hydrogen and oxygen gases are placed in a container with a pin-hole through which both can escape. What fraction of the oxygen escape in the time required for one-half of the hydrogen to escape?

The correct statement regarding the comparison of staggered and eclipsed conformations of ethane, is:

The rate of a first-order reaction is 0.04 mol l−1s−1 at 10 second and 0.03 mol l−1s−1 at 20 seconds after initiation of the reaction. The half-life period of the reaction is:

When copper is heated with conc. HNO3 it produces:

In a protein molecule various amino acids are linked together by:

Fog is a colloidal solution of:

Which one given below is a non-reducing sugar?

The correct statement regarding RNA and DNA, respectively is:

The correct thermodynamic conditions for the spontaneous reaction at all temperatures is:

Which is the correct statement for the given acids?

MY and NY3, two nearly insoluble salts, have the same Ksp values of 6.2 ×10−13 at room temperature. Which statement would be true in regard to MY and NY3?

Which of the following is an analgesic?

The pair of electron in the given carbanion, CH3C ≡ C⊖ is present in which of the following orbitals? www.vedantu.com 46

Among the following, the correct order of acidity is:

Which one of the following statements is correct when SO2 is passed through acidified K2Cr2O7 solution?

Predict the correct order among the following:

Two electrons occupying the same orbital are distinguished by:

The product obtained as a result of a reaction of nitrogen with CaC2 is:

Nutural rubber has:

Which one of the following orders is correct for the bond dissociation enthalpy of halogen molecules?

The reaction Can be classified as:

Lithium has a bcc structure. Its density is 530 kg m−3 and its atomic mass is 6.94 g mol−1. Calculated the edge len gth of a unit cell of Lithium metal. (NA = 6.02× 1023 mol−1)

The ionic radii of 𝐴+ and 𝐵− ions are 0.98 × 10−10𝑚 and 1.81× 10−10 𝑚. The coordination number of each ion in AB is

At 100𝑜𝐶 the vapour pressure of a solution of 6.5 g of a solute in 100 g water is 732 mm. If 𝐾𝑏 = 0.52, the boiling point of this solution will be:

The electronic configurations of Eu (Atomic no. 63), Gd (Atomic NO. 64) and Tb (Atomic No. 65) are:

Which of the following statements about hydrogen is incorrect?

In the reaction X and Y are:

Consider the following liquid – vapour equilibrium. Liquid ⇌ Vapour Which of the following relations is correct?

Which of the following statements about the composition of the vapour over an ideal 1 : 1 molar mixture of benzene and toluene is correct? Assume that the temperature is constant at 25𝑜𝐶. (Given vapour pressure data at 25𝑜𝐶, benzene = 12.8 kPa, toluene = 3.85 kPa)

Which of the following biphenyls is optically active? www.vedantu.com 42

Which of the following reagents would distinguish cis-cyclopenta-1, 2-diol from the trans-isomer?

The correct statement regarding a carbonyl compound with a hydrogen atom on its alpha carbon, is:

Consider the molecules CH4,NH3 and H2O. Which of the given statements is false?

Consider the nitration of benzene using mixed conc. H2SO4 and HNO3. If a large amount of KHSO4 is added to the mixture, the rate of nitration will be:

Which of the following statements is false?

Which of the following has longest C – O bond length? (Free C – O bond length in CO is 1.128 Å).