InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Human red blood cells (RBCs) cannot be grown in cultures because a. RBCs require a steady oxygen supply b. RBCs are extremely fragilec. RBCs are terminally differentiated cells d. RBCs are biconcave |
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Answer» c. RBCs are terminally differentiated cells |
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| 2. |
Which one of the following cannot form a bilayer by itself? a. Glycerophospholipids b. Cholesterol c. Phosphatidic acid d. Glycerolipids |
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Answer» b. Cholesterol |
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| 3. |
The poison dart frog, or poison arrow frog in the family Dendrobatidae carry Batrachotoxin, among other agents. The toxin irreversibly binds to voltage-gated sodium channels and keeps them open. Why does this paralyze and kill you? a. The ionic gradient gets lost and the nerve cells die b. Synapses remain active so muscles cannot relax c. The metabolic cost of pumping sodium ions exhausts the ATP reserves of cells d. All pain-conducting nerves become active simultaneously |
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Answer» b. Synapses remain active so muscles cannot relax |
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| 4. |
Consider the following statements. I. Some fairies are pixies II. All pixies are magicians III. No magicians are trollsBased on the above statements, which of the following is correct: a. Some trolls are pixies b. Some fairies are magicians c. All magicians are pixies d. All pixies are fairies |
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Answer» Correct option: b. Some fairies are magicians |
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| 5. |
How many bacteria were there in the initial 1 ml sample based on the dilution series shown below? The labels below the tube show the amount of liquid before the transfer. Assume no cell death, and assume that all bacteria successfully form colonies when plated.a. 6.5 x 108 b. 6.5 x 109c. 6.5 x 1010 d. 6.5 x 1011 |
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Answer» Correct option: c. 6.5 x 1010 |
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| 6. |
Which one of the following quantities is invariant under Lorentz transformation? a. Charge density b. Charge c. Current d. Electric field |
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Answer» Correct option: b. Charge |
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| 7. |
When you are writing a paper, which of the following actions does not require you to cite the source? a. Reusing a standard abbreviation from a published paper b. Reusing a sentence from a published paper c. Reusing a paragraph from the methods section of a published paper d. Reusing a paragraph from Wikipedia |
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Answer» a. Reusing a standard abbreviation from a published paper |
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| 8. |
You have been asked to measure the wingspans of a set of birds of the same species. As your sample size (the number of wingspans you measure) increases, what will a graph of standard deviation vs. sample size look like? a. Increasing b. Decreasing c. Constant (flat) d. Fluctuating (sometimes increasing, sometimes decreasing) |
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Answer» Correct option: d. Fluctuating (sometimes increasing, sometimes decreasing) |
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| 9. |
Ontario, a province in Canada, is nearly 6 times larger than the state of Karnataka, yet it houses fewer species of plants and animals than its Indian counterpart. This is most likely because:a. Karnataka has a higher human population b. Karnataka is closer to the equator c. Ontario is west of Karnataka d. Ontario gets more precipitation per year |
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Answer» Correct option: b. Karnataka is closer to the equator |
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| 10. |
A particle of mass m undergoes harmonic oscillations with period T, about x = 0. Now a force F is applied to the particle, acting opposite in direction to its instantaneous velocity: F = - kv. What happens when the particle is released from rest from some x > 0:a. It undergoes a steady oscillation with a period larger than T b. It undergoes a decaying oscillation c. It no longer oscillates, it moves in one direction with decreasing speed d. It could oscillate or not, depending on parameter values |
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Answer» d. It could oscillate or not, depending on parameter values |
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| 11. |
In a certain process 1.5×105 Joules of heat is added to an ideal gas to keep the pressure at 2.0×105 Pa while the volume expands from 6.3m3 to 7.1m3 . What is the change in internal energy for the gas?a. It decreases by 2.0×105 Jb. It increases by 1.0×105 J c. It increases by 1.0×103 J d. It decreases by 1.0×104 J |
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Answer» d. It decreases by 1.0×104 J |
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| 12. |
Standing waves are excited in a 1 m long pipe open at one end, closed at the other. Take the speed of the wave as 340 m/s and calculate the frequency of the first overtone (i.e. the first harmonic above the fundamental frequency). a. 128 Hz b. 170 Hz c. 255 Hz d. 510 Hz |
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Answer» Correct option: c. 255 Hz |
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| 13. |
The voltage measured across a metal bar is plotted as a function of applied current, at two different temperatures (T1 and T2). Which of the following statements is correct?a. T1 is greater than T2 b. T2 is less than T1c. T1 is equal to T2 d. T1 could be less than or greater than T2 depending on which metal it is |
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Answer» a. T1 is greater than T2 |
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| 14. |
Two identical bi-convex lenses L1 and L2 are arranged 10 cm apart. A collimated, parallel beam of light strikes L1 from the left and converges 4.3 cm from the left lens. The emergent rays on the right of L2 will bea. parallel b. convergent c. divergent d. polarised |
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Answer» b. convergent |
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| 15. |
Which of the following molecules will have a dipole moment? a. CH4 b. NH3 c. CCl4 d. CO2 |
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Answer» Correct option: b. NH3 |
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| 16. |
When a non-volatile solute is dissolved in a pure solvent, the difference between the freezing points of the solvent alone and the solution is a. positive b. negative c. zero d. none of the above |
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Answer» Correct option: a. positive |
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| 17. |
Which of the following compounds does not undergo ozonolysis reaction? a. 3-methyl-1-butene b. 2,3-dimethyl-butane c. 2-methyl-2-butene d. 2-methyl-1-butene |
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Answer» b. 2,3-dimethyl-butane |
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| 18. |
Which compound is most acidic? a. H2O b. H2S c. H2Se d. NH3 |
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Answer» Correct option: c. H2Se |
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| 19. |
4.8g of gas at 27°C occupied the same volume as 1g of hydrogen at 17°C and at the same pressure. What is the molecular weight of the gas?a. 0.1 g b. 0.48 g c. 5.2 g d. 9.9 g |
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Answer» Correct option: d. 9.9 g |
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| 20. |
A helium atom is heavier than a hydrogen molecule. At 298 K, the average kinetic energy of a helium atom is a. twice that of a hydrogen molecule b. equal to that of a hydrogen molecule c. four times that of a hydrogen molecule d. half that of a hydrogen molecule |
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Answer» b. equal to that of a hydrogen molecule |
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| 21. |
Gluco kinase phosphor ylates glucose in liver only when glucose levels are higher than normal. What property of glucokinase is responsible for this? a. High molecular weight b. High Km c. High Vmax d. Ability to act equally on D- and L-glucose |
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Answer» Correct option: b. High Km |
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| 22. |
In an experiment, two fly populations are separately maintained for many generations. Population A contains closely-related individuals. Population B contains a set of unrelated individuals. Over many generations it is observed that the fitness of individuals in population A is lower than the fitness of those in population B. Why? a. Close relatives will not mate with one another b. Close relatives compete for common resources more than unrelated individuals c. The offspring of close relatives harbour more deleterious recessive mutations d. Unrelated individuals are likely to contain new high-fitness genes |
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Answer» c. The offspring of close relatives harbour more deleterious recessive mutations |
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| 23. |
How would you test whether a phenotypic difference between two populations of a plant is due to environmentally induced plasticity or evolutionary adaptation? a. DNA sequencing b. RNA sequencing c. Grow both populations in different greenhouses d. Grow both populations in the same greenhouse |
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Answer» d. Grow both populations in the same greenhouse |
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| 24. |
Platelets contain a. Both genomic and mitochondrial DNA b. Only mitochondrial DNA c. Only genomic DNA d. No DNA |
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Answer» b. Only mitochondrial DNA |
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| 25. |
Among the following, the one that gives positive Iodoform test upon reaction with I2 and NaOH is: a. Molecule (A) b. Molecule (B) c. Molecule (C) d. Molecule (D) |
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Answer» b. Molecule (B) |
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| 26. |
Protein X is composed of 700 amino acids. When resolved on denaturing PAGE it shows a band corresponding to 130 kDa. The probable reason for such discrepancy is a. Dimerization of the protein b. Glycosylation of the protein c. Phosphorylation of the protein d. Acetylation of the protein |
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Answer» b. Glycosylation of the protein |
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| 27. |
Which of the following amino acids is commonly used in catalysis by enzyme? a. Alanine b. Arginine c. Serine d. Methionine |
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Answer» Correct option: c. Serine |
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| 28. |
Labelling of proteins with iodine is used for tracing. Which amino acid does iodine react with. a. Alanine b. Aspartate c. Lysine d. Tyrosine |
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Answer» Correct option: d. Tyrosine |
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| 29. |
You are given an oligonucleotide whose molecular weight is 10000 Daltons. Assuming you want to make 100 µl of 100 µM stock how much oligonucleotide would you need? a. 10 µg b. 1 µg c. 100 µg d. 1000 µg |
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Answer» Correct option: c. 100 µg |
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| 30. |
A particle is constrained to move in a circle with a 10-metre radius. At one instant, the particle speed is 10 m/s and its speed is increasing with a rate of 10 m/s2 . What is the angle between the particle velocity and acceleration vectors? a. 0 degrees b. 30 degrees c. 45 degrees d. 90 degrees |
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Answer» c. 45 degrees |
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| 31. |
Which of the following best explains why the refractive index of water changes with temperature? a. Due to change in density b. Due to change in surface tension c. Due to change in viscosity d. Due to evaporation |
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Answer» a. Due to change in density |
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| 32. |
You are running up a spiral staircase. The associated angular momentum points in which direction? a. Upwards b. Downwards c. The net displacement is linear, so there is no angular momentum d. The answer cannot be determined from the information given |
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Answer» d. The answer cannot be determined from the information given |
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| 33. |
Which statement is true for the following chemical reactions?a. CO2 is oxidized and SnO2 is reduced b. CuCO3 is oxidized and CuO is reduced c. CuO is oxidized and SnO is reduced d. SnO is oxidized and CuO is reduced |
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Answer» d. SnO is oxidized and CuO is reduced |
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| 34. |
Element Y has a nucleon number of 19 and a proton number of 9. Which group in the Periodic Table does it belong to? a. Group Ib. Group III c. Group VII d. Group VIII |
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Answer» c. Group VII |
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| 35. |
India faced heavy floods this year in Uttarakhand and Kerala. This is most likely due to: a. Pollution b. Land use change c. El Niño d. Seismic activityJGEEBILS, |
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Answer» b. Land use change |
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| 36. |
The speed of the Earth orbiting the sun is a. the same at all points along its orbitb. fastest at a single fixed point on its orbitc. fastest at two fixed points on its orbit d. slowest at two fixed points on its orbit |
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Answer» b. fastest at a single fixed point on its orbit |
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| 37. |
We say a shape has more symmetries if there are more ways it can be rotated, flipped or moved to get back the same shape. Below are images of four different macromolecules labelled A to D. Order them from low to high symmetry.a. D, C, A, B b. B, A, D, C c. D, B, C, A d. A, D, C, B |
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Answer» Correct option: c. D, B, C, A |
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| 38. |
What is the output range of the function y = 1 − exp (x) for input values in the interval −∞ < x < ∞?a. −∞ < y < ∞ b. 0 < y < ∞c. −∞ < y < 1 d. 0 < y < 1 |
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Answer» Correct option: c. −∞ < y < 1 |
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| 39. |
Which of the following is the largest? a. 100 1/100b. 100 1/101c. 10 1/51d. 10 1/52 |
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Answer» Correct option: a. 100 1/100 |
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| 40. |
What is the output of the following pseudocode program, which first defines a function ‘whoosh’ and then calls it from a for-loop?define whoosh(n) if n is equal to 1 return 1 else return n + whoosh(n-1) endif end define for i = 1 to 5 print whoosh(i) endfora. 1, 2, 3, 4, 5 b. 1, 1, 2, 3, 5 c. 1, 3, 6, 10, 15 d. 1, 2, 6, 24, 120 |
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Answer» Correct option: c. 1, 3, 6, 10, 15 |
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| 41. |
Scientists marked and released 100 lizards on 4 islands. Each island is home to predators. After a month they trapped and counted all surviving marked lizards. They then repeated the experiment, but after removing all predators from each island. Their results are summarised below. Which of the following inferences can you make from this plot?a. Predators have no impact on lizard survival b. Predators have a bigger impact on female survival than male survival c. Some islands did not have any predators to begin with d. Females survival is twice that of males, but only in the presence of predators |
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Answer» Correct option: b. Predators have a bigger impact on female survival than male survival |
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| 42. |
A charged particle is released from rest in a region where there is a constant electric field and a constant magnetic field. If the two fields are parallel to each other, the path of the particle is a a. circle b. straight line c. helix d. parabola |
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Answer» b. straight line |
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| 43. |
You have a system of non-interacting particles that can exist in three possible states, with energy 0, E, 2E (E > 0). At a temperature T = E/kB (where kB = Boltzmann's constant) the energy states are occupied in approximately the ratio a. 1 : 1 : 1 b. 1 : 0.5 : 0.25 c. 1 : 2.72 : 7.39 d. 1 : 0.37 : 0.14 |
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Answer» Correct option: d. 1 : 0.37 : 0.14 |
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