Biology
1. Select the correct sequence of organs in the alimentary canal of cockroach starting from mouth : 2. Which of the following statements is not correct? 3. Match the Column-I with Column-II :
Select the correct option. 4. Tidal Volume and Expiratory Reserve Volume of an athlete is 500 mL and 1000 mL respectively. What will
be his Expiratory 5. Select the correct sequence for transport of sperm cells in male reproductive system : 6. What is the genetic disorder in which an individual has an overall masculine development, gynaecomastia,
and is sterile? 7. Drug called ‘Heroin’ is synthesized by : 8. The concept of ''Omnis cellula-e cellula'' regarding cell division was first proposed by : 9. Variations caused by mutation, as proposed by Hugo de Vries, are : 10. Match Column-I with Column –II.
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.tg td{border-style:solid;border-widt 11. Select the horomone-releasing Intra-Uterine Devices. 12. The frequency of recombination between gene pairs on the same chromosome as a measure of the distance
between genes was 13. A gene locus has two alleles A, a. If the frequency of dominant allele A is 0.4, then what will be the
frequency of homo 14. How does steroid hormone influence the cellular activities? 15. Which one of the following statements regarding post-fertilization development in flowering plants is
incorrect? 16. The shorter and longer arms of a submetacentric chromosome are referred to as: 17. In Antirrhinum (Snapdragon), a red flower was crossed with a white flower and in F1 generation, pink
flowers were obtain 18. Expressed Sequence Tags (ESTs) refers to : 19. Which of the following factors is responsible for the formation of concentrated urine? 20. What would be the heart rate of a person if the cardiac output is 5L, blood volume in the ventricles at the end
of diast 21. What map unit (Centimorgan) is adopted in the construction of genetic maps? 22. Which of the following glucose transporters is insulin-dependent? 23. Under which of the following conditions will there be no change in the reading frame of following mRNA?
5' AACAGCGGUGCUA 24. Which of the following is a commercial blood cholesterol lowering agent? 25. Following statements describe the characteristics of the enzyme Restriction Endonuclease. Identify the
incorrect stateme 26. Thiobacillus is a group of bacteria helpful in carrying out : 27. In a species, the weight of newborn ranges from 2 to 5 kg. 97% of the newborn with an average weight
between 3 to 3.3 kg 28. Which of the following statement is incorrect? 29. Match the hominids with their correct brain size :
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.tg td{border-styl 30. The Earth summit held in Rio de Janeiro in 1992 was called : 31. Which of the following is the most important cause for animals and plants being driven to extinction? 32. Identify the correct pair representing the causative agent of typhoid fever and the confirmatory test for
typhoid. 33. Which of the following sexually transmitted diseases is not completely curable ? 34. Which of the following immune responses is responsible for rejection of kidney graft? 35. Select the correct group of biocontrol agents. 36. DNA precipitation out of a mixture of bimolecules can be achieved by treatment with : 37. Which one of the following is not a method of in situ conservation of biodiversity? 38. Pinus seed cannot germinate and establish without fungal association. This is because : 39. Which of the following features of genetic code does allow bacteria to produce human insulin by
recombinant DNA technolo 40. What triggers activation of protoxin to active Bt toxin of Bacillus thuringiensis in boll worm? 41. Colostrum, the yellowish fluid, secreted by mother during the initial days of lactation is very essential to
impart immu 42. Which of the following ecological pyramids is generally inverted? 43. Match the following organisms with the products they produce :
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.tg td 44. Which of the following can be used as a biocontrol agent in the treatment of plant disease? 45. Select the correct option : 46. The ciliated epithelial cells are required to move particles or mucus in a specific direction. In humans, these
cells ar 47. Conversion of glucose to glucose-6 phosphate, the first irreversible reaction of glycolysis, is catalyzed by 48. Use of an artificial kindney during hemodialysis may result in :
(a) Nitrogenous waste build-up in the body
(b) Non –eli 49. In some plants, the female gamete develops into embryo without fertilization. This phenomenon is known as : 50. Extrusion of second polar body from egg nucleus occurs : 51. Phloem in gymnosperms lacks : 52. Which of the following pair of organelles does not contains DNA? 53. Respiratory Quotient (RQ) value of tripalmitin is : 54. Which of the following muscular disorders is inherited? 55. Purines found both in DNA and RNA are: 56. Select the correctly written scientific name of Mango which was first described by Carolus Linnaeus : 57. Which part of the brain is responsible for thermoregulation? 58. Select the incorrect statement. 59. What is the site of perception of photoperiod necessary for induction of flowering in plants? 60. Match the following hormones with the respective disease :
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.tg td{bor 61. Placentation, in which ovules develop on the inner wall of the ovary or in peripheral part, is : 62. What is the fate of the male gametes discharged in the synergid? 63. From evolutionary point of view, retention of the female gametophyte with developing young embryo on the
parent sporophy 64. Grass leaves curl inward during very dry weather. Select the most appropriate reason from the following : 65. Match the following genes of the Lac operon with their respective produces :
.tg {border-collapse:collapse;border-spac 66. What is the direction of movement of sugars in phloem? 67. Which of the following statements regarding mitochondria is incorrect? 68. Consider the following statements :
(A) Coenzyme of metal ion that is tightly bound to enzyme protein is called prosthet 69. Cells in G0 phase : 70. Which of the following statements is incorrect? 71. Concanavalin A is : 72. Match the following organisms with their respective characteristics:
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73. Which of the statements given below is not true about formation of Annual Rings in trees? 74. Which of the following contraceptive methods do involve a role of hormone? 75. Consider following features:
(a) Organ system level of organisation
(b) Bilateral symmetry
(c) True coelomates with segm 76. The correct sequence of phases of cell cycle is : 77. Persistent nucellus in the seed is known as
Chemistry
1. For the chemical reaction
N2(g) + 3H2(g) ⇌ 2NH3(g)
the correct option is : 2. Match the Xenon compounds in Column-I with its structure in Column-II and assign the correct code :
3. The non-essential amino acid among the following is : 4. For the cell reaction
2Fe3+(aq) + 2I–
(aq) $$ \to $$ 2Fe2+(aq) + I2(aq)
$${E_{cell}^\Theta }$$ = 0.24 V at 298 K. The st 5. If the rate constant for a first order reaction is k, the time (t) required for the completion of 99 % of the
reaction i 6. 4d, 5p, 5f and 6p orbitals are arranged in the order of decreasing energy. The correct option is : 7. The number of moles of hydrogen molecules required to produce 20 moles of ammonia through Haber’s
process is : 8. The number of sigma ($$\sigma $$) and pi ($$\pi $$) bonds in pent-2-en-4-yne is -
9. The compound that is most difficult to protonate is : 10. For a cell involving one electron $$E_{cell}^\Theta $$ = 0.59 V at 298 K, the equilibrium constant for the cell reaction 11. What is the correct electronic configuration of the central atom in K4[Fe(CN)6] based on crystal field theory? 12. An alkene “A” on reaction with O3 and Zn + H2O gives propanone and ethanal in equimolar ratio. Addition
of HCl to alkene 13. Which is the correct thermal stability order for H2E (E = O, S, Se, Te and Po)? 14. Identify the incorrect statement related to PCl5 from the following : 15. The structure of intermediate A in the following reaction, is :
16. The most suitable reagent for the following conversion, is :
17. The mixture that forms maximum boiling
azeotrope is : 18. The major product of the following reaction is :
19. Match the following :
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.tg td{border-style:solid;border-width:0px;font 20. The correct order of the basic strength of methyl substituted amines in aqueous solution is : 21. Among the following, the reaction that proceeds through an electrophilic substitution, is : 22. For an ideal solution, the correct option is : 23. The manganate and permanganate ions are tetrahedral due to : 24. Which of the following species is not stable? 25. pH of a saturated solution of Ca(OH)2 is 9. The solubility product (Ksp) of Ca(OH)2 is : 26. Which of the following series of transitions in the spectrum of hydrogen atom falls in visible region? 27. Which of the following diatomic molecular species has only $$\pi $$ bonds according to Molecular Orbital Theory?
28. Which will make basic buffer? 29. The correct structure of tribromooctaoxide is : 30. Under isothermal condition, a gas at 300 K expands from 0.1 L to 0.25 L against a constant external pressure
of 2 bar. T 31. Which of the following is incorrect statement? 32. Which of the following reactions are disproportionation reaction?
(a) 2Cu+ $$ \to $$ Cu2+
+ Cu0
(b) 3MnO42- + 4H+ $$ \t 33. For the second period elements the correct increasing order of first ionization enthalpy is : 34. In which case change in entropy is negative? 35. Conjugate base for Bronsted acids H2O and HF are :
Physics
1. The total energy of an electron in an atom in an orbit is –3.4 eV. Its kinetic and potential energies are, respectively. 2. A small hole of area of cross-section 2 mm2 present near the bottom of a fully filled open tank of height 2 m. Taking g 3. In total internal reflection when the angle of incidence is equal to the critical angle for the pair of media in contact 4. A body weight 200 N on the surface of earth. How much will it weight half way down to the centre of the earth? 5. Which of the following acts as a circuit protection device? 6. A disc of radius 2 m and mass 100 kg rolls on a horizontal floor. Its centre of mass has speed of 20 cm/s. How much work 7. The unit of thermal conductivity is : 8. Ionized hydrogen atoms and $$\alpha $$-particles with same momenta enters perpendicular to a constant magnetic field, B. 9. Pick the wrong answer in the context with rainbow. 10. Two similar thin equi-convex lenses, of focal length f each, are kept coaxially in contact with each other such that the 11. When an object is shot from the bottom of a long smooth inclined plane kept at an angle 60o with horizontal, it can trav 12. A solid cylinder of mass 2 kg and radius 4 cm is rotating about its axis at the rate of 3 rpm. The torque required to st 13. Body A of mass 4m moving with speed u collides with another body B of mass 2 m, at rest. The collision is head on and el 14. A soap bubble, having radius of 1 mm, is blown from a detergent solution having a surface tension of 2.5 $$ \times $$ 10 15. A particle moving with velocity
$$\overrightarrow V $$ is acted by three forces shown by the vector triangle PQR. The v 16. In a double slit experiment, when light of wavelength 400 nm was used, the angular width of the first minima formed on a 17. A mass m is attached to a thin wire and whirled in a vertical circle. The wire is most likely to break when : 18. Two particles A and B are moving in uniform circular motion in concentric circles of radii rA and rB with speed vA and v 19. A 800 turn coil of effective area 0.05 m2 is kept. perpendicular to a magnetic filed 5 × 10–5 T. When the plane of the 20. In which of the following processes, heat is neither absorbed nor released by a system? 21. The radius of circle, the period of revolution, initial position and sense of revolution are indicated is the figure.
22. An electron is accelerated through a potential difference of 10,000 V. Its de Broglie wavelength is (nearly) : (me = 9 23. A block of mass 10 kg is in contact against the inner wall of a hollow cylindrical drum of radius 1 m. The coefficient o 24. In the circuits shown below, the readings of voltmeters and the ammeters will be :
25. Which colour of the light has the longest wavelength? 26. Increase in tempertaure of a gas filled in a container would lead to : 27. Average velocity of a particle executing SHM in one complete vibration is : 28. The speed of a swimmer in still water is 20 m/s. The speed of river water is 10 m/s and is flowing due east. If he is st 29. A copper rod of 88 cm and an aluminium rod of unknown length have their increase in length independent of increase in tm 30. The correct Boolean operation represented by the circuit diagram drawn is :
31. At a point A on the earth’s surface the angle of dip, $$\delta $$ = + 25o. At a point B on the earth's surface the angle 32. A hollow metal sphere of radius R is uniformly charged. The electric field due to the sphere at a distance r from the ce 33. Six similar bulbs are connected as shown in the figure with a DC source of emf E, and zero internal resistance.
The ra 34. The displacement of a particle executing simple harmonic motion is given by
y = A0 + A sin$$\omega $$t + B cos$$\omega $ 35. A force F = 20 + 10y acts on a particle in y-direction where F is in newton and y in meter. Work done by this force to m 36. A cylinderical conductor of radius R is carrying a constant current. The plot of the magnitude of the magnetic field. B 37. Two parallel infinite line charges with linear charge densities +$$\lambda $$ C/m and -$$\lambda $$ C/m are placed at a 38. The work done to raise a mass m from the surface of the earth to a height h, which is equal to the radius of the earth, 39. In which of the following devices, the eddy current effect is not used? 40. When a block of mass M is suspended by a long wire of length L, the length of the wire becomes (L + $$l$$). The elastic 41. Two point charges A and B, having charges +Q and – Q respectively, are placed at certain distance apart and force acting 42. A parallel plate capacitor of capacitance 20 $$\mu $$F is being charged by a voltage source whose potential is changing 43. For a p-type semiconductor, which of the following statements is true? 44. $$\alpha $$-particale consists of : 45. In an experiment, the percentage of error occurred in the measurement of physical quantities A, B, C and D are 1%, 2 %,
1
NEET 2019
MCQ (Single Correct Answer)
+4
-1
In some plants, the female gamete develops into embryo without fertilization. This phenomenon is known as :
A
Syngamy
B
Parthenocarpy
C
Parthenogenesis
D
Autogamy
2
NEET 2019
MCQ (Single Correct Answer)
+4
-1
Extrusion of second polar body from egg nucleus occurs :
A
Before entry of sperm into ovum
B
Simultaneously with first cleavage
C
After entry of sperm but before fertilization
D
After fertilization
3
NEET 2019
MCQ (Single Correct Answer)
+4
-1
Phloem in gymnosperms lacks :
A
Companion cells only
B
Both sieve tubes and companion cells
C
Albuminous cells and sieve cells
D
Sieve tubes only
4
NEET 2019
MCQ (Single Correct Answer)
+4
-1
Which of the following pair of organelles does not contains DNA?
A
Lysosomes and Vacuoles
B
Nuclear envelope and Mitochondria
C
Mitochodria and Lysosomes
D
Chloroplast and Vacuoles
Paper Analysis
Total Questions
Biology 77
Chemistry 35
Physics 45
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