NEET 2017 Solved Question Paper


180 Questions MCQ Test NEET Mock Test Series 2020 & Past Year Papers | NEET 2017 Solved Question Paper


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This mock test of NEET 2017 Solved Question Paper for NEET helps you for every NEET entrance exam. This contains 180 Multiple Choice Questions for NEET NEET 2017 Solved Question Paper (mcq) to study with solutions a complete question bank. The solved questions answers in this NEET 2017 Solved Question Paper quiz give you a good mix of easy questions and tough questions. NEET students definitely take this NEET 2017 Solved Question Paper exercise for a better result in the exam. You can find other NEET 2017 Solved Question Paper extra questions, long questions & short questions for NEET on EduRev as well by searching above.
QUESTION: 1

A spring of force constant k is cut into lengths of ratio 1: 2 : 3. They are connected in series and the new force constant is k'. Then they are connected in parallel and force constant is k''. Then k' : k'' is

Solution: For ratio constant x,1/k'=(1/1+1/2+1/3)x k'=6/11x k"=(1+2+3)x=6x k'/k"=1/11
QUESTION: 2

The ratio of resolving powers of an optical microscope for two wave lengths λ1 = 4000 Å and λ2  = 6000 Å is :-

Solution:

QUESTION: 3

The two nearest harmonics of a tube closed at one end and open at other end are 220 Hz and 260 Hz. What is the fundamental frequency of the system?

Solution:

Difference between any two consecutive frequencies

So fundamental frequency = 20 Hz

QUESTION: 4

Consider a drop of rain water having mass 1 g falling from a height of 1 km. It hits the ground with a speed of 50 m/s. Take 'g' constant with a value 10 m/s2. The work done by the

(i) gravitational force and the

(ii) resistive force of air is :-
 

Solution:

QUESTION: 5

A physical quantity of the dimensions of length that can be formed out of is velocityof light, G is universal constant of gravitation and e is charge] :-

Solution:

QUESTION: 6

Two rods A and B of different materials are welded together as shown in figure. Their thermal conductivities are K1 and K2. The thermal conductivity of the composite rod will be :-

Solution:

QUESTION: 7

A capacitor is charged by a battery. The battery isremoved and another identical uncharged capacitoris connected in parallel. The total electrostaticenergy of resulting system :-

Solution:

Decreases by a factor of 2

Charge on capacitor
q = CV
when it is connected with another uncharged capacitor.


QUESTION: 8

In a common emitter transistor amplifier the audio signal voltage across the collector is 3V. The resistance of collector is 3 kΩ. If current gain is 100 and the base resistance is 2 kΩ, the voltage and power gain of the amplifier is :-

Solution:

QUESTION: 9

Thermodynamic processes are indicated in the following diagram :

Solution:

Process (1) → volume constant → Isochroic

Process (2) → adiabatic

Process (3) → Temperature constant → Isothermal

Process (4) → Pressure constant → Isobaric

QUESTION: 10

Suppose the charge of a proton and an electrondiffer slightly. One of them is – e, the other is(e + De). If the net of electrostatic force and gravitational force between two hydrogen atoms placed at a distance d (much greater than atomicsize) apart is zero, then De is of the order of[Given mass of hydrogen mh = 1.67 × 10–27 kg]

Solution:

we know, a hydrogen atom has one electron and one proton
so, net charge on each hydrogen atom = (e + ∆e - e) = ∆e
so, electrostatic force , 
gravitational force, 
where Mh denotes mass of hydrogen
a/c to question,
gravitational force = electrostatic force


we know, K = 9 × 109 Nm²/C², G = 6.67 × 10-11 Nm²/Kg² , Mh = 1.67 × 10-27 Kg
so, 9 × 109 × ∆e² = 6.67 × 10-11 × (1.67 × 10-27)²
or, ∆e² = 6.67 × 10-11 × 1.67 × 1.67 × 10-54/9 × 109
or, ∆e = 1.43767 × 10-37 C

QUESTION: 11

The resistance of a wire is 'R' ohm. If it is meltedand stretched to 'n' times its original length, its newresistance will be :-

Solution:

QUESTION: 12

The given electrical network is equivalent to :

Solution:

QUESTION: 13

The de-Broglie wavelength of a neutron in thermalequilibrium with heavy water at a temperature T(Kelvin) and mass m, is :-

Solution:

Kinetic energy of thermal neutron with equilibrium

QUESTION: 14

Which one of the following represents forward bias diode ?

Solution:

QUESTION: 15

A long solenoid of diameter 0.1 m has 2 × 104 turnsper meter. At the centre of the solenoid, a coil of 100 turns and radius 0.01 m is placed with its axiscoinciding with the solenoid axis. The current in thesolenoid reduces at a constant rate to 0A from 4 A in 0.05 s. If the resistance of the coil is 10π2Ω.the total charge flowing through the coil during thistime is :-

Solution:




QUESTION: 16

Preeti reached the metro station and found that the escalator was not working. She walked up the stationary escalator in time t1. On other days, if she remains stationary on the moving escalator, then the escalator takes her up in time t2. The time taken by her to walk up on the moving escalator will be

Solution:

As we learnt in
Case of Relative velocity -
When A & B are moving along with straight line in opposite direction.

Relative velocity of A with respect to B is.

QUESTION: 17

Young's double slit experment is first performed inair and then in a medium other than air. It is foundthat 8th bright fringe in the medium lies where 5th dark fringe lies in air. The refractive index of themedium is nearly :-

Solution:

Fringe Width in a medium -

- where in
Since wavelength in a medium become

Fringe width in air 
Fringe width in any other medium 
According to question

QUESTION: 18

A beam of light from a source L is incident normallyon a plane mirror fixed at a certain distance x fromthe source. The beam is reflected back as a spoton a scale placed just above the source I. When themirror is rotated through a small angle q, the spotof the light is found to move through a distance yon the scale. The angle q is given by :-

Solution:

QUESTION: 19

If θ1 and θ2 be the apparent angles of dip observedin two vertical planes at right angles to each other,then the true angle of dip θ is given by :-

Solution:

QUESTION: 20

Two cars moving in opposite directions approach each other with speed of 22 m/s and 16.5 m/s respectively. The driver of the first car blows a horn having a a frequency 400 Hz. The frequency heard by the driver of the second car is [velocity of sound 340 m/s] :-

Solution:

QUESTION: 21

Two blocks A and B of masses 3 m and mrespectively are connected by a massless andinextensible string. The whole system is suspendedby a massless spring as shown in figure. Themagnitudes of acceleration of A and B immediatelyafter the string is cut, are respectively :-

Solution:

QUESTION: 22

A thin prism having refracting angle 10° is made of glass of refractive index 1.42. This prism is combined with another thin prism of glass ofrefractive index 1.7. This combination produces dispersion without deviation. The refracting angleof second prism should be :-

Solution:

(μ -1)A + (μ'-1)A = 0
(μ-1)A |(μ'-1)A'|
(1.42 -1)x10° = (1.7 -1)A'
4.2 = 0.7A'
A' = 6°

QUESTION: 23

The acceleration due to gravity at a height 1 km above the earth is the same as at a depth d below the surface of earth. Then:-

Solution:

QUESTION: 24

A potentiometer is an accurate and versatile device to make electrical measurements of E.M.F. because the method involves :-

Solution:

In zero deflection condition, potentiometer draws
no current.

QUESTION: 25

A spherical black body with a radius of 12 cm radiates 450 watt power at 500 K. If the radius were halved and the temperature doubled, the power radiated in watt would be :-

Solution:

QUESTION: 26

Figure shows a circuit that contains three identicalresistors with resistance R = 9.0 Ω each, two identical inductors with inductance L = 2.0 m Heach, and an ideal battery with emf ε = 18 V. Thecurrent 'i' through the battery just after the switch closed is,...... :-  

Solution:

QUESTION: 27

Radioactive material 'A' has decay constant '8 λ' andmaterial 'B' has decay constant 'λ'. Initially they havesame number of nuclei. After what time, the ratioof number of nuclei of material 'B' to that 'A' will be 1/e?

Solution:

QUESTION: 28

The diagrams below show regions of equipotentials:-

A positive charge is moved from A to B in each diagram.
 

Solution:

W = qΔV
as ΔV is same in all conditions, work will be same.

QUESTION: 29

Two astronauts are floating in gravitational free space after having lost contact with their spaceship.The two will :-

Solution:

Astronauts move towards each other under mutual gravitational force.

QUESTION: 30

The x and y coordinates of the particle at any timeare x = 5t – 2t2 and y = 10t respectively, wherex and y are in meters and t in seconds. Theacceleration of the particle at t = 2s is :-

Solution:

QUESTION: 31

One end of string of length l is connected to aparticle of mass 'm' and the other end is connectedto a small peg on a smooth horizontal table. If theparticle moves in circle with speed 'v' the net forceon the particle (directed towards centre) will be (T represents the tension in the string) :-

Solution:

Net force on the particle in uniform circular motion is centripetal force, which is provided by the tension in string.

QUESTION: 32

A particle executes linear simple harmonic motion with an amplitude of 3 cm. When the particle is at 2 cm from the mean position, the magnitude of its velocity is equal to that of its acceleration. Then its time period in seconds is :-

Solution:

QUESTION: 33

Two Polaroids P1 and P2 are placed with their axisperpendicular to each other. Unpolarised light I0 isincident on P1 . A third polaroid P3 is kept in betweenP1 and P2 such that its axis makes an angle 45° withthat of P1 . The intensity of transmitted light throughP2 is :-

Solution:

QUESTION: 34

The bulk modulus of a spherical object is 'B'. If itis subjected to uniform pressure 'p', the fractional decrease in radius is:-

Solution:

QUESTION: 35

In an electromagnetic wave in free space the root meansquare value of the electric field is Erms = 6V/m. Thepeak value of the magnetic field is :-

Solution:

QUESTION: 36

A rope is wound around a hollow cylinder of mass3 kg and radius 40 cm. What is the angularacceleration of the cylinder if the rope is pulled witha force of 30 N ?

Solution:

QUESTION: 37

Two discs of same moment of inertia rotating about their regular axis passing through centre and perpendicular to the plane of disc with angular velocities ω1 and ω2 . They are brought into contact face to face coinciding the axis of rotation. The expression for loss of energy during this process is:-

Solution:

QUESTION: 38

The photoelectric threshold wavelength of silver is3250 × 10–10m. The velocity of the electron ejectedfrom a silver surface by ultraviolet light ofwavelength 2536 × 10–10 m is :-

(Given h = 4.14 × 10–15 eVs and c = 3 × 108 ms–1)

Solution:

QUESTION: 39

A 250-Turn rectangular coil of length 2.1 cm andwidth 1.25 cm carries a current of 85 µA and subjectedto magnetic field of strength 0.85 T. Work done forrotating the coil by 180º against the torque is:-

Solution:

W = MB (cosθ1– cosθ2)
When it is rotated by angle 180º then
W = 2MB
W = 2 (NIA)B
= 2 x 250 x 85 x 10-6[1.25 x 2.1 x 10-4] x 85 x 10-2
= 9.1μJ

QUESTION: 40

The ratio of wavelengths of the last line of Balmerseries and the last line of Lyman series is :-

Solution:

QUESTION: 41

A carnot engine having an efficiency of 1/2 as heat engine, is used as a refrigerator. If the work done on the system is 10 J, the amount of energy absorbed from the reservoir at lower temperature is :-

Solution:

QUESTION: 42

A gas mixture consists of 2 moles of O2 and 4 molesof Ar at temperature T. Neglecting all vibrationalmodes, the total internal energy of the system is :-

Solution:

QUESTION: 43

An arrangement of three parallel straight wires placed perpendicular to plane of paper carrying
same current 'I along the same direction is shown in fig. Magnitude of force per unit length on the middle wire 'B' is given by :-

Solution:

QUESTION: 44

A U tube with both ends open to the atmosphere, is partially filled with water. Oil, which is immiscible with water, is poured into one side until it stands at a distance of 10 mm above the water level on the other side. Meanwhile the water rises by 65 mm from its original level (see diagram). The density of the oil is :-

 

Solution:

QUESTION: 45

Which of the following statements are correct ?

(a) Centre of mass of a body always coincides with the centre of gravity of the body

(b) Central of mass of a body is the point at which the total gravitational torque on the body is zero

(c) A couple on a body produce both translational and rotation motion in a body

(d) Mechanical advantage greater than one means that small effort can be used to lift a large load
 

Solution:

Centre of mass may lie on centre of gravity net torque of gravitational pull is zero about centre of mass.

QUESTION: 46

Name the gas that can readily decolourise acidified KMnO4 solution :

Solution:

QUESTION: 47

Mechanism of a hypothetical reaction


 

Solution:

QUESTION: 48

The element Z = 114 has been discovered recently.It will belong to which of the following family/groupand electronic configuration ?

Solution:

QUESTION: 49

The heating of phenyl–methyl ethers with HIproduces

Solution:

QUESTION: 50

Which one is the correct order of acidity ?

Solution:

Acidic strength ∝ Electronegativity of Carbon ∝ % s−character
Correct order of acidic strength

QUESTION: 51

Predict the correct intermediate and product in the following reaction :

Solution:

QUESTION: 52

The equilibrium constant of the following are :

Solution:

QUESTION: 53

Which one is the most acidic compound ?

Solution:

QUESTION: 54

The correct increasing order of basic strength for the following compounds is :

Solution:

QUESTION: 55

Ionic mobility of which of the following alkali metalions is lowest when aqueous solution of their saltsare put under an electric field ?

Solution:

QUESTION: 56

The most suitable method of separation of 1 : 1mixture of ortho and para-nitrophenols is :

Solution:

The ortho and para isomers can be separated by steam distillation o-Nitrophenol is steam volatile due
to intramolecular hydrogen bonding while p-nitro phenol is less volatile due to intermolecular hydrogen bonding which cause association of
molecule.

QUESTION: 57

HgCl2 and I2 both when dissolved in water containing I ions the pair of species formed is :
 

Solution:

QUESTION: 58

Mixture of chloroxylenol and terpineol acts as :

Solution:

Antiseptic (dettol)

QUESTION: 59

An example of a sigma bonded organometallic compound is :

Solution:

Grignard's reagent i.e., RMgX is σ-bonded organometallic compound.

QUESTION: 60

A first order reaction has a specific reaction rateof 10–2 sec–1. How much time will it take for 20gof the reactant to reduce to 5 g ?

Solution:

QUESTION: 61

Match the interhalogen compounds of column-I with the geometry in column II and assign the
correct. code.

 

Solution:

QUESTION: 62

Concentration of the Ag+ ions in a saturated solution of Ag2C2O4 is 2.2 × 10–4 mol L–1 Solubility product of Ag2C2O4 is :-
 

Solution:

QUESTION: 63

 

Solution:

QUESTION: 64

Which of the following pairs of compounds isisoelectronic and isostructural ?

Solution:

IBr2- ,XeF2
Total number of valence electrons are equal in both the species and both the species exhibit linear shape.

QUESTION: 65

The IUPAC name of the compound

Solution:

QUESTION: 66

The process of heating the concentrated ore in a limited supply of air or in the absence of air is known as:

Solution:

In the process of metallurgy, Calcination is used for the concentration of ore to oxide. It is a process of heating an ore in a limited supply of air. If the ore is heated in the presence of excess of air then its ia known as roasting. Generally carbonate ores are calcined and hence carbon dioxide is given out.

QUESTION: 67

Which is the incorrect statement ?

Solution:

In frenkel defect the radius of cation must be very less than anion. Incorrect statement is (3)

QUESTION: 68

The species, having bond angles of 120° is :-
 

Solution:

QUESTION: 69

For a given reaction, ΔH = 35.5 kJ mol–1 and ΔS = 83.6 JK–1mol–1. The reaction is spontaneous at : (Assume that ΔH and ΔS do not vary with tempearature)
 

Solution:

QUESTION: 70

Which of the following is a sink for CO ?

Solution:

Microorganism present in the soil.

QUESTION: 71

If molality of the dilute solutions is doubled, the valueof molal depression constant (Kf) will be :-

Solution:

Kf does not depend on concentration of solution. It only depends on nature of solvent so it will be unchanged. option (3)

QUESTION: 72

Which of the following is dependent ontemperature?

Solution:

Temperature dependent unit is molarity.

QUESTION: 73

Which one of the following statements is notcorrect?

Solution:

Equilibrium constant is not affected by presence of catalyst hence statement (1) is incorrect.

QUESTION: 74

Identify A and predict the type of reaction

Solution:

QUESTION: 75

The correct order of the stoichiometries ofAgCl formed when AgNO3 in excess is treated with the complexes : CoCl3.6NH3, CoCl3.5NH3,CoCl3.4NH3 respectively is :-

Solution:

QUESTION: 76

The correct statement regarding electrophile is :-

Solution:

Electrophile can be either neutral or positively charged species and can form a bond by accepting a pair of electron from a nucleophile.

QUESTION: 77

A gas is allowed to expand in a well insulatedcontainer against a constant external pressure of2.5atm from an initial volume of 2.50 L to a finalvolume of 4.50L. The change in internal energyΔU of the gas in joules will be:-

Solution:

QUESTION: 78

Which of the following reactions is appropriate forconverting acetamide to methanamine ?

Solution:

This reaction is known as hoffmann
hypobromamide reaction.

QUESTION: 79

With respect to the conformers of ethane, whichof the following statements is true ?

Solution:

In conformation bond angle and bond length
remain same.

QUESTION: 80

In which pair of ions both the species contain S–S bond?

Solution:

QUESTION: 81

It is because of inability of ns2 electrons of the valence shell to participate in bonding that:-
 

Solution:

QUESTION: 82

Correct increasing order for the wavelengths of absorption in the visible region the complexes of Co3+ is :-

Solution:

QUESTION: 83

Consider the reactions :-

Solution:

QUESTION: 84

Of the following, which is the product formed when cyclohexanone undergoes aldol condensation followed by heating ?:-

Solution:

QUESTION: 85

Which of the following pairs of species have thesame bond order ?

Solution:

Total no. of electrons in CN is 14
Total no. of electrons in CO is also 14
hence B.O. of both CN & CO is 3

QUESTION: 86

Extraction of gold and silver involes leaching with CNion. Silver is later recovered by :-

Solution:

QUESTION: 87

A 20 litre container at 400 K contains CO2(g) atpressure 0.4 atm and an excess of SrO (neglectthe volume of solid SrO). The volume of thecontainer is now decreased by moving the movablepiston fitted in the container. The maximum volumeof the container, when pressure of CO2 attains itsmaximum value, will be :-

Solution:

QUESTION: 88

Pick out the correct statement with respect to[Mn(CN)6]3–:-

Solution:

QUESTION: 89

The reason for greater range of oxidation statesin actinoids is attributed to :-

Solution:

Minimum energy gap between
5f, 6d & 7s subshell. Thats why e– exitation will be easeir.

QUESTION: 90

Which of the following statements is not correct :-

Solution:

Denaturation makes the protein more active.

QUESTION: 91

Which one of the following statements is correct,with reference to enzymes ?

Solution:
QUESTION: 92

A decrease in blood pressure / volume will notcause the release of :

Solution: ANF decreases blood pressure.. When blood pressure is increased ANF is secreted which causes dilation of blood vessels so reduces blood pressure and not released when blood pressure is low...
QUESTION: 93

Which cells of "Crypts of Lieberkuhn" secreteantibacterial lysozyme ?

Solution:
QUESTION: 94

Which of the following are not polymeric ?

Solution:
QUESTION: 95

Functional megaspore in an angiosperm developsinto ?

Solution: Functional megaspore undergoes mitosis thrice and forms seven cells and eight nuclei..this structure forms the embryo sac.
QUESTION: 96

Chipko movement was launched for the protection of

Solution:
QUESTION: 97

Myelin sheath is produced by :

Solution:
QUESTION: 98

Receptor sites for neurotransmitters are present on :

Solution:
QUESTION: 99

Coconut fruit is a :

Solution:
QUESTION: 100

Adult human RBCs are enucleated. Which of thefollowing statement(s) is/are most appropriateexplanation for this feature ?
(a) They do not need to reproduce
(b) They are somatic cells
(c) They do not metabolize
(d) All their internal space is available for oxygen transport

Solution:
QUESTION: 101

Capacitation occurs in :

Solution:
QUESTION: 102

Which of the following are found in extreme salineconditions ?

Solution:
QUESTION: 103

Asymptote in a logistic growth curve is obtainedwhen :

Solution:
QUESTION: 104

Artificial selection to obtain cows yielding higher milk output represents :

Solution:
QUESTION: 105

Select the mismatch :

Solution: Mycorrhiza:- the symbiotic relationship between fungi with roots of higher vascular plants....ex:Pinus..whereas Rhodospirillum is a chemoheterotroph...
QUESTION: 106

Good vision depends on adequate intake of carotene rich food : Select the best option from the following statements :
(a) Vitamin A derivatives are formed from carotene
(b) The photopigments are embedded in the membrane discs of the inner segment
(c) Retinal is a derivative of Vitamin A
(d) Retinal is a light absorbing part of all the visual photopigments Options :
 

Solution:
QUESTION: 107

The DNA fragments separated on an agarose gelcan be visualised after staining with :

Solution:
QUESTION: 108

The hepatic portal vein drains blood to liver from:

Solution:
QUESTION: 109

The vascular cambium normally gives rise to :

Solution:
QUESTION: 110

Thalassemia and sickle cell anemia are caused dueto a problem in globin molecule synthesis. Selectthe correct statement :

Solution:
QUESTION: 111

The genotypes of a husband and Wife are IAIand IA i. Among the blood types of their children, how manydifferent genotypes and phenotypes are possible?

Solution:
QUESTION: 112

Which of the following facilitates opening ofstomatal aperture ?

Solution:
QUESTION: 113

In Bougainvillea thorns are the modifications of :

Solution:
QUESTION: 114

Which one of the following is related to Ex-situconservation of threatened animals and plants ?

Solution:
QUESTION: 115

Root hairs develop from the region of :

Solution:
QUESTION: 116

A disease caused by an autosomal primary non-disjunction is :

Solution:
QUESTION: 117

The water potential of pure water is :

Solution:
QUESTION: 118

Which of the following options gives the correctsequence of events during mitosis ?

Solution:
QUESTION: 119

The process of separation and purification ofexpressed protein before marketing is called :

Solution:
QUESTION: 120

A temporary endocrine gland in the human bodyis :

Solution:
QUESTION: 121

Which of the following is made up of dead cells?

Solution:
QUESTION: 122

An example of colonial alga is :

Solution:
QUESTION: 123

Match the following sexually transmitted diseases (Column-I) with their causative agent (Column-II) and select the correct option :

Solution:
QUESTION: 124

The function of copper ions in copper releasingIUD's is :

Solution:
QUESTION: 125

Which of the following in sewage treatmentremoves suspended solids ?

Solution:
QUESTION: 126

An important characteristic that Hemichordatesshare with Chordates is :

Solution:
QUESTION: 127

The final proof for DNA as the genetic materialcame from the experiments of :

Solution:
QUESTION: 128

Among the following characters, which one wasnot considered by Mendel in his experiments onpea ?

Solution:
QUESTION: 129

Plants which produce characteristic pneumatophoresand show vivipary belong to :

Solution:
QUESTION: 130

The pivot joint between atlas and axis is a typeof :

Solution:

Synovial joints are freely movable joint which allow considerable movements. Pivot joint is a type of synovial joint which provide rotational movement as in between atlas and axis vertebrae of vertebral column

QUESTION: 131

With reference to factors affecting the rate ofphotosynthesis, which of the following statementsis not correct ?

Solution:
QUESTION: 132

DNA fragments are:

Solution:
QUESTION: 133

Which of the following components provides stickycharacter to the bacterial cell ?

Solution:
QUESTION: 134

Which of the following options best represents theenzyme composition of pancreatic juice ?

Solution:
QUESTION: 135

Which among these is the correct combination ofaquatic mammals ?

Solution:
QUESTION: 136

Fruit and leaf drop at early stages can be preventedby the application of:

Solution:
QUESTION: 137

Select the correct route for the passage of spermsin male frogs:

Solution:
QUESTION: 138

In case of a couple where the male is having a verylow sperm count, which technique will be suitablefor fertilisation ?

Solution:
QUESTION: 139

Which ecosystem has the maximum biomass ?

Solution:
QUESTION: 140

Lungs are made up of air-filled sacs, the alveoli.They do not collapse even after forceful expiration,because of:

Solution:
QUESTION: 141

Presence of plants arranged into well definedvertical layers depending on their height can be seenbest in:

Solution:
QUESTION: 142

Which of the following statements is correct ?

Solution:
QUESTION: 143

Alexander Von Humbolt described for the first time:

Solution:
QUESTION: 144

Zygotic meiosis is characteristic of;

Solution:
QUESTION: 145

If there are 999 bases in an RNA that codes fora protein with 333 amino acids, and the base atposition 901 is deleted such that the length of theRNA becomes 998 bases, how many codons will bealtered ?

Solution:
QUESTION: 146

Flowers which have single ovule in the ovary and are packed into inflorescence are usually pollinated by

Solution:
QUESTION: 147

Transplantation of tissues/organs fails often due tonon-acceptance by the patient's body. Which typeof immune-response is responsible for suchrejections ?

Solution:
QUESTION: 148

Life cycle of Ectocarpus and Fucus respectively are:

Solution:
QUESTION: 149

A gene whose expression helps to identifytransformed cell is known as :

Solution:
QUESTION: 150

A dioecious flowering plant prevents both :

Solution:
QUESTION: 151

Which statement is wrong for Krebs' cycle ?

Solution:
QUESTION: 152

Phosphoenol pyruvate (PEP) is the primary COacceptor in:

Solution:
QUESTION: 153

During DNA replication, Okazaki fragments areused to elongate:

Solution:
QUESTION: 154

Which of the following RNAs should be mostabundant in animal cell ?

Solution:
QUESTION: 155

GnRH, a hypothalamic hormone, needed inreproduction, acts on:

Solution:
QUESTION: 156

What is the criterion for DN A fragments movementon agarose gel during gel electrophoresis ?

Solution:
QUESTION: 157

Hypersecretion of Growth Hormone in adults doesnot cause further increase in height, because:

Solution:
QUESTION: 158

DNA replication in bacteria occurs:

Solution:
QUESTION: 159

Which one from those given below is the periodfor Mendel's hybridization experiments ?

Solution:
QUESTION: 160

Viroids differ from viruses in having;

Solution:
QUESTION: 161

MALT constitutes about ________ percent of thelymphoid tissue in human body.

Solution:
QUESTION: 162

Which of the following is correctly matched for theproduct produced by them ?

Solution:
QUESTION: 163

Which among the following are the smallest livingcells, known without a definite cell wall, pathogenicto plants as well as animals and can survive withoutoxygen ?

Solution:
QUESTION: 164

Which of the following represents order of'Horse' ?

Solution:
QUESTION: 165

Frog's heart when taken out of the body continues to beat for sometime. Select the best option from the following statements.
(a) Frog is a poikilotherm.
(b) Frog does not have any coronary circulation.
(c) Heart is "myogenic" in nature.
(d) Heart is autoexcitable Options:
 

Solution: In frogs heart is myogenic i.e. it is auto regulated which means it is not under the control of neural regulation thatswhy when taken out it continues to beat for sometime.It is regulated by SAN(sino atrial node) which generates the impulse on its own so it is self excitable.
QUESTION: 166

Homozygous purelines in cattle can be obtained by:

Solution:
QUESTION: 167

Identify the wrong statement in context ofheartwood:

Solution:
QUESTION: 168

Anaphase Promoting Complex (APC) is a proteindegradation machinery necessary for proper mitosisof animal cells. If APC is defective in a human cell,which of the following is expected to occur ?

Solution:
QUESTION: 169

Which of the following cell organelles is responsiblefor extracting energy from carbohydrates to formATP ?

Solution:
QUESTION: 170

Mycorrhizae are the example of:

Solution:
QUESTION: 171

Out of 'X' pairs of ribs in humans only 'Y' pairs aretrue ribs. Select the option that correctly representsvalues of X and Y and provides their explanation:

Solution:
QUESTION: 172

In case of poriferans, the spongocoel is lined withflagellated cells called:

Solution:
QUESTION: 173

Which one of the following statements is not validfor aerosols ?

Solution:
QUESTION: 174

A baby boy aged two years is admitted to play school and passes through a dental check-up. The dentist observed that the boy had twenty teeth. 

Which teeth were absent?

Solution: Premolar becz for child dental formula is 2102 .
QUESTION: 175

Select the mismatch

Solution: Pinus plant is monoecious i.e. both male and female cone are present in same plant
QUESTION: 176

The morphological nature of the edible part ofcoconut is:

Solution:
QUESTION: 177

Double fertilization is exhibited by :

Solution:
QUESTION: 178

Spliceosomes are not found in cells of;

Solution:
QUESTION: 179

The association of histone H1 with a nucleosomeindicates:

Solution:
QUESTION: 180

The region of Biosphere Reserve which is legallyprotected and where no human activity is allowedis known as:

Solution:

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