datavorous/entrance-exam-dataset huggingface dataset:
What was the source of insulin before it was produced using rDNA techniques?

Options:
A Slaughtered cattle and pigs
B E. coli
C Humans
D Other animals

The correct answer is:
Slaughtered cattle and pigs

Solution:
Insulin used for diabetes was earlier extracted from pancreas of slaughtered cattle and pigs.

Topic: Biology, Biotechnology and Its Applications, NEET
What was the source of radioactivity in Hershey and Chase's experiments?

Options:
A Proteins
B RNA
C Phosphorus and sulfur
D Bacteria

The correct answer is:
Phosphorus and sulfur

Solution:
Hershey and Chase grew some viruses on a medium that contained radioactive phosphorus and some others on medium that contained radioactive sulfur.

Topic: Biology, Molecular Basis of Inheritance, NEET
What was the substance that F. Skoog and his co-workers found to be essential for the proliferation of callus from the internodal segments of tobacco stems?

Options:
A Kinetin
B Abscisic acid
C Gibberellic acid
D A combination of auxins and one of the following: extracts of vascular tissues, yeast extract, coconut milk, or DNA)

The correct answer is:
A combination of auxins and one of the following: extracts of vascular tissues, yeast extract, coconut milk, or DNA)

Solution:
F. Skoog and his co-workers observed that the callus proliferated from the internodal segments of tobacco stems only if, in addition to auxins, the nutrients medium was supplemented with one of the following: extracts of vascular tissues, yeast extract, coconut milk, or DNA)

Topic: Biology, Plant - Growth and Development, NEET
What was the temperature during Miller's experiment?

Options:
A 800°C
B 100°C
C 500°C
D 1000°C

The correct answer is:
800°C

Solution:
Miller created electric discharge in a closed flask containing CH₄, H₂, NH₃, and water vapor at 800°C

Topic: Biology, Evolution, NEET
What was the theory of spontaneous generation?

Options:
A The theory that life came out of decaying and rotting matter
B The theory that life came from spores
C The theory that life came from outside the planet
D The theory that life was created by a higher power

The correct answer is:
The theory that life came out of decaying and rotting matter

Solution:
For a long time, it was also believed that life came out of decaying and rotting matter like straw, mud, etc. This was the theory of spontaneous generation.

Topic: Biology, Evolution, NEET
What was the title of Crick's Ph.D. thesis?

Options:
A "X:ray Diffraction: Polypeptides and Proteins"
B "Effect of hard X:rays on bacteriophage multiplication"
C "Zoology"
D "DNA structure"

The correct answer is:
"X:ray Diffraction: Polypeptides and Proteins"

Solution:
Crick completed his Ph.D. in 1954 on a thesis entitled "X:ray Diffraction: Polypeptides and Proteins."

Topic: Biology, Principles of Inheritance and Variation, NEET
What was the topic of Watson's study for his B.SC. degree?

Options:
A Genetics
B Bird:watching
C Zoology
D X:rays

The correct answer is:
Zoology

Solution:
Watson received a B.SC. degree in Zoology.

Topic: Biology, Principles of Inheritance and Variation, NEET
What was the world population in 1900?

Options:
A 2 billion
B 3 billion
C 4 billion
D 5 billion

The correct answer is:
2 billion

Solution:
The world population was around 2 billion (2000 million) in 1900.

Topic: Biology, Reproductive Health, NEET
What were chromosomes initially called, and why?

Options:
A Discrete units, because they were visualised by staining
B Factors, because they controlled the expression of traits
C Colored bodies, because they were visualised by staining
D Homologous sites, because they occurred in pairs

The correct answer is:
Colored bodies, because they were visualised by staining

Solution:
Chromosomes were initially called colored bodies because they were visualised by staining.

Topic: Biology, Principles of Inheritance and Variation, NEET
What were some of the compounds observed to be formed during Miller's experiment?

Options:
A Oxygen and Nitrogen
B Amino acids, sugars, nitrogen bases, pigments and fats
C Carbon and Water
D Gold and Silver

The correct answer is:
Amino acids, sugars, nitrogen bases, pigments and fats

Solution:
Miller observed the formation of amino acids and similar experiments revealed the formation of sugars, nitrogen bases, pigments and fats.

Topic: Biology, Evolution, NEET
What were some of the contrasting traits selected by Mendel during his experiments?

Options:
A Smooth or wrinkled seeds
B Yellow or green leaves
C Red or blue flowers
D All of the above

The correct answer is:
Smooth or wrinkled seeds

Solution:
Mendel selected 14 true-breeding pea plant varieties, as pairs which were similar except for one character with contrasting traits, such as smooth or wrinkled seeds, yellow or green seeds, inflated or constricted green or yellow pods, and tall or dwarf plants.

Topic: Biology, Principles of Inheritance and Variation, NEET
What were the ancestors of modern day frogs and salamanders?

Options:
A Fish
B Invertebrates
C Plants
D Amphibians

The correct answer is:
Amphibians

Solution:
The ancestors of modern day frogs and salamanders were the amphibians.

Topic: Biology, Evolution, NEET
What were the conditions on Earth that were favorable for the formation of life?

Options:
A Low temperature and stable atmosphere
B High temperature, volcanic storms and reducing atmosphere
C Cold climate and high pressure
D Waterless and dark environment

The correct answer is:
High temperature, volcanic storms and reducing atmosphere

Solution:
The conditions on Earth were high temperature, volcanic storms, reducing atmosphere containing CH₄, NH₃, etc.

Topic: Biology, Evolution, NEET
What were the earliest classifications based on?

Options:
A External and internal structure
B Structure of cell
C Development process
D Uses of various organisms

The correct answer is:
Uses of various organisms

Solution:
The earliest classifications were based on the 'uses' of various organisms, which were important for human basic needs like food, clothing, and shelter.

Topic: Biology, The Living World, NEET
What were the first non:cellular forms of life composed of?

Options:
A Giant molecules such as RNA, Protein, Polysaccharides, etC)
B Small molecules such as Oxygen and Nitrogen
C Only RNA
D Only Protein

The correct answer is:
Giant molecules such as RNA, Protein, Polysaccharides, etC)

Solution:
The first non:cellular forms of life would have been giant molecules (RNA, Protein, Polysaccharides, etc).

Topic: Biology, Evolution, NEET
What were the major problems scientists faced after the discovery of subatomic particles?

Options:
A Explaining the behavior of elements.
B Understanding electromagnetic radiation.
C Accounting for the stability of atoms.
D Identifying the charges of subatomic particles.

The correct answer is:
Accounting for the stability of atoms.

Solution:
One of the major problems was to account for the stability of atoms.

Topic: Chemistry, Structure of Atom, NEET
What were the names given by American and Soviet scientists to element 104?

Options:
A American scientists named it Kurchatovium, and Soviet scientists named it Rutherfordium.
B Both American and Soviet scientists named it Rutherfordium.
C American scientists named it Rutherfordium, and Soviet scientists named it Kurchatovium.
D Element 104 was not named by either American or Soviet scientists.

The correct answer is:
American scientists named it Rutherfordium, and Soviet scientists named it Kurchatovium.

Solution:
Both American and Soviet scientists claimed credit for discovering element 104. The Americans named it Rutherfordium whereas Soviets named it Kurchatovium.

Topic: Chemistry, Classification of Elements and Periodicity in Properties, NEET
What were the particles emitted when bombarding beryllium with alpha particles?

Options:
A Electrons
B Protons
C Neutrons
D Positrons

The correct answer is:
Neutrons

Solution:
When bombarding beryllium with alpha particles, electrically neutral particles known as neutrons were emitted.

Topic: Chemistry, Structure of Atom, NEET
What were the results of the scattering experiment with the gold foil?

Options:
A Most of the α-particles were deflected.
B Most of the α-particles passed through the foil undeflected.
C All of the α-particles bounced back.
D The α-particles were completely absorbed by the foil.

The correct answer is:
Most of the α-particles passed through the foil undeflected.

Solution:
The majority of the α-particles passed through the gold foil undeflected.

Topic: Chemistry, Structure of Atom, NEET
What were the steps taken in Delhi to reduce vehicular pollution?

Options:
A Use of low-sulphur petrol and diesel
B Use of catalytic converters in vehicles
C Phasing out of old vehicles
D All of the above

The correct answer is:
All of the above

Solution:
The steps taken in Delhi to reduce vehicular pollution include phasing out of old vehicles, use of unleaded petrol, use of low-sulphur petrol and diesel, use of catalytic converters in vehicles, etc.

Topic: Biology, Environmental Issues, NEET
What were the two major developments that played a role in the formulation of Bohr's model of the atom?

Options:
A Electromagnetic radiation and nuclear forces
B Atomic spectra and electromagnetic radiation
C Atomic mass and electron behavior
D Nuclear energy and chemical properties

The correct answer is:
Atomic spectra and electromagnetic radiation

Solution:
The two major developments that played a role in the formulation of Bohr's model of the atom were atomic spectra and electromagnetic radiation.

Topic: Chemistry, Structure of Atom, NEET
What were the two primates that existed about 15 mya?

Options:
A Chimpanzees and gorillas
B Dryopithecus and Ramapithecus
C Australopithecines and Homo habilis
D Homo erectus and Homo sapiens

The correct answer is:
Dryopithecus and Ramapithecus

Solution:
About 15 mya, primates called Dryopithecus and Ramapithecus were existing. They were hairy and walked like gorillas and chimpanzees.

Topic: Biology, Evolution, NEET
What were the two traits that Morgan crossed in his dihybrid crosses in Drosophila?

Options:
A Yellow:bodied and white:eyed
B Brown:bodied and red:eyed
C Yellow:bodied and miniature:winged
D White:bodied and brown:eyed

The correct answer is:
Yellow:bodied and white:eyed

Solution:
Morgan crossed yellow:bodied, white:eyed females with brown:bodied, red:eyed males in his dihybrid crosses in Drosophila.

Topic: Biology, Principles of Inheritance and Variation, NEET
What were two examples of Eka-elements?

Options:
A Gold and silver
B Gallium and germanium
C Hydrogen and helium
D Oxygen and nitrogen

The correct answer is:
Gallium and germanium

Solution:
Two examples of Eka-elements mentioned in the paragraph are gallium and germanium.

Topic: Chemistry, Classification of Elements and Periodicity in Properties, NEET
What will be nature of change in internal energy in case of processes shown below?

Options:
A +ve in all cases
B –ve in all cases
C cannot say
D zero in all cases

The correct answer is:
zero in all cases

Solution:
All are cyclic processes so change in internal energy is zero in all these.

Topic: Chemistry, Thermodynamics (C), NEET
What will be normality of the resultant solution when 500 â ml 1N H 2 SO 4 , 300 âml 1N HCl and 200 â ml 5N HNO 3 are mixed togather and then volume was made 2000 âml by adding some water?

Options:
A 0.9 N
B 2 N
C 1.9 N
D 4 N

The correct answer is:
0.9 N

Solution:
H2SO4 HCl HNO3 Total volume N1V1 + N2V2 + N3V3 = N Ã 2000 ml
N=N1V1+N2V2+N3V32000
=500Ã1+300Ã1+200Ã52000
N=500+300+10002000=18002000=0.9 N

Topic: Chemistry, Some Basic Concepts of Chemistry, NEET
What will be the additional volume of air that a person can expire by a forcible expiration?

Options:
A 500 mL
B 1100 mL
C 2300 mL
D 3000 mL

The correct answer is:
1100 mL

Solution:
Expiratory Reserve Volume (ERV = 1000 mL to 1100 mL): It is an additional volume of air that a person can expire by a forcible expiration.

Topic: Biology, Breathing and Exchange of Gases, NEET
What will be the amount of DNA in the meiotic II products if DNA is 20 picogram in the meiocyte at G2-stage?

Options:
A 5 pg
B 10 pg
C 20 pg
D 40 pg

The correct answer is:
5 pg

Solution:
In G2 phase, meiocyte will have chromosome number = 2 (n) and DNA content = 20 picogram, after undergoing meiosis 2, the cells becomes haploid and will have only 5pg in each cell

Topic: Biology, Cell Cycle and Cell Division, NEET
What will be the capacitance of the parallel plate capacitor if the distance between the plates is reduced by half, and the space between them is filled with a substance of dielectric constant 6, given that the initial capacitance with air between the plates is 8 pF (1pF = ${{10}^{-12}}$ F)?

Options:
A 36 pF
B 80 pF
C 96 pF
D 16 pF

The correct answer is:
96 pF

Solution:
Correct Option is : (C)
96 pF

Topic: Chemistry, Capacitance, NEET
What will be the change in interatomic distance (in AÂ°) of steel on applying a stress of 109 N/m2. The Young's modulus of steel is 2Ã 10 11 N/ m 2 and the interatomic distance in steel is 2.8 AÂ°.

Options:
A 7×10-3
B 14×10-3
C 21×10-3
D 28×10-3

The correct answer is:
14×10-3

Solution:
e=( Stress )(â)Y

=1092Ã1011Ã2.8( in Ã)

=1.4Ã10-2 Ã
=14Ã10-3 Ã

Topic: Physics, Mechanical Properties of Solids, NEET
What will be the conjugate bases for the Brönsted acids: \(\mathrm{HF}^{\mathrm{F}} \mathrm{H}_2 \mathrm{SO}_4\) and \(\mathrm{HCO}_3^{-}\)?

Options:
A \(\mathrm{F}^{-}, \mathrm{HSO}_4^{-}, \mathrm{CO}_3^{2-}\)
B \(\mathrm{H}_2 \mathrm{~F}^{-}, \mathrm{H}_2 \mathrm{SO}_4^{-}, \mathrm{HCO}_3^2\)
C \(\mathrm{F}^{-}, \mathrm{HSO}_4^{-}, \mathrm{HCO}_3^{-}\)
D \(\mathrm{F}^{-}, \mathrm{SO}_4^{2-}, \mathrm{CO}_3^{2-}\)

The correct answer is:
\(\mathrm{F}^{-}, \mathrm{HSO}_4^{-}, \mathrm{CO}_3^{2-}\)

Solution:
Correct Option is : (A)
\(\mathrm{F}^{-}, \mathrm{HSO}_4^{-}, \mathrm{CO}_3^{2-}\)

Topic: Chemistry, Ionic Equilibrium, NEET
What will be the correct gene expression pathway?

Options:
A Gene-mRNA transcription-translation-protein
B Transcription-gene translation-mRNA-protein
C Gene transcription mRNA-translation protein
D Gene-translation mRNA-transcription protein

The correct answer is:
Gene transcription mRNA-translation protein

Solution:
Gene → transcription → m RNA → translation → protein

Topic: Biology, Molecular Basis of Inheritance, NEET
What will be the correct order for the wavelengths of absorption in the visible region for the following: [Ni(NO2)6]4–, [Ni(NH3)6]2+and [Ni(H2O)6]2+

Options:
A [Ni(H2O)6]2+< [Ni(NO2)6]4–<[Ni(NH3)6]2+
B [Ni(NO2)6]4–<[Ni(NH3)6]2+< [Ni(H2O)6]2+
C Ni(NH3)6]2+< [Ni(H2O)6]2+< [Ni(NO2)6]4–
D [Ni(H2O)6]2+< Ni(NH3)6]2+< [Ni(NO2)6]4–

The correct answer is:
[Ni(NO2)6]4–<[Ni(NH3)6]2+< [Ni(H2O)6]2+

Solution:
Correct Option is : (B)
[Ni(NO2)6]4–<[Ni(NH3)6]2+< [Ni(H2O)6]2+

Topic: Chemistry, Coordination Compounds, NEET
What will be the correct stability order of the different conformations of n-butane?

Options:
A Fully-eclipsed > eclipsed > gauche > anti-staggered
B Anti-staggered > eclipsed > gauche > fully-eclipsed
C Anti-staggered > gauche > eclipsed > fully-eclipsed
D Gauche > anti-staggered > eclipsed > fully-eclipsed

The correct answer is:
Anti-staggered > gauche > eclipsed > fully-eclipsed

Solution:
The overall stability order is (IV) > (II) > (III) > (I).
i.e. Anti-staggered > gauche > eclipsed < fully-eclipsed.

Topic: Chemistry, General Organic Chemistry, NEET
What will be the direction of flow of water when a plant cell is placed in a hypotonic solution?

Options:
A Water will flow in both directions
B Water will flow out of the cell
C Water will flow into the cell
D No flow of water in any direction

The correct answer is:
Water will flow into the cell

Solution:
The behaviour of the plant cells with regard to water movement depends on the surrounding solution. When a plant cell is placed in hypotonic solution then the water will flow into the cell and the cell will swell.

Topic: Biology, Transport in Plants, NEET, NEET 2019 (Odisha)
What will be the direction of movement of water, when solution X having water potential of -12 bars and another solution Z of -8 bars is separated by a semipermeable membrane?

Options:
A Z to X
B X to Z
C Both direction
D There will be no movement

The correct answer is:
Z to X

Solution:
By definition,"Water potential is the potential energy of water per unit volume relative to pure water in reference conditions." Thus, water will move from a higher water potential region to the lower potential region through the semipermeable membrane. In the given two solutions, Z with -8 bars has higher water potential than solution X with -12 bars. Hence, water movement will be from solution Z to X, flowing along the concentration gradient via semi permeable membrane.

Topic: Biology, Transport in Plants, NEET
What will be the distribution of phenotypic features in the first filial generation after a cross between a homozygous recessive female and a heterozygous for a single locus?

Options:
A 3:1
B 1:2:1
C 1:1
D None of these

The correct answer is:
1:1

Solution:
Test cross is a process to examine and identify whether the organism is heterozygous or not. In it, the organisms are crossed with the recessive homozygous as it will ensure the expression of the dominant character in heterozygous form for F1 generation enabling us to know the zygosity. The ratio obtained in F1 generation after crossing the heterozygous individual with recessive homozygous individual is 1:1 .
Phenotypic ratio of a typical monohybrid ratio is 3:1 and the genotypic ratio for the same is 1:2:1

Topic: Biology, Principles of Inheritance and Variation, NEET
What will be the distribution of phenotypic features in the first filial generation if a cross is carried out between a homozygous female and a heterozygous male for a single locus?

Options:
A 1:0
B 1:2:1
C 1:1
D both A and C

The correct answer is:
both A and C

Solution:
If a homozygous female AA or aa is crossed with heterozygous male Aa for a single locus then the phenotype of the progeny will show both the traits. If the female parent is AA than all the progeny will have dominant phenotype 1 : 0 and if the female parent is aa than it is a test cross and the phenotypic ratio is 1 : 1.

Topic: Biology, Principles of Inheritance and Variation, NEET
What will be the effect of temperature on rate constant?

Options:
A An increase in temperature will always decrease the rate constant.
B Temperature has no effect on the rate constant.
C Increase in temperature will generally increase the rate constant, as per Arrhenius equation.
D An increase in temperature will only affect the rate constant if the reaction is exothermic.

The correct answer is:
Increase in temperature will generally increase the rate constant, as per Arrhenius equation.

Solution:
Correct Option is : (C)
Increase in temperature will generally increase the rate constant, as per Arrhenius equation.

Topic: Chemistry, Chemical Kinetics, NEET
What will be the effect of the accumulation of K+ ions in guard cells?

Options:
A Water potential increases
B Water potential decreases
C Loss of turgidity
D Solute potential increases

The correct answer is:
Water potential decreases

Solution:
When the amount of solutes increases, osmotic potential decreases, and total water potential decreases.
Opening and closure of the stomatal pore are mediated by changes in the turgor pressure of the two guard cells. The turgor pressure of guard cells is controlled by movements of large quantities of ions and sugars into and out of it. Guard cells have cell walls of varying thickness and differently oriented cellulose microfibers, causing them to bend outward when they are turgid, which in turn, causes stomata to open.
Stomata open when there is an osmotic gain of water, occurring from the inflow of K+ ions from neighboring cells.

Topic: Biology, Transport in Plants, NEET
What will be the effect on the oxygen dissociation curve, if the temperature is decreased?

Options:
A The curve will be shifted right
B The curve will be shifted left
C The curve will became a straight line
D It is unpredictable

The correct answer is:
The curve will be shifted left

Solution:
Factors that are favourable in the alveoli for the formation of oxyhemoglobin	Factors that are favourable in the tissues for the dissociation of oxyhemoglobin

High pO2	Low pO2

Low pCO2	High pCO2

Lesser H+ concentration	Greater H+ concentration

Lower temperature	Higher temperature

Topic: Biology, Breathing and Exchange of Gases, NEET
What will be the equilibrium constant of reaction, A + B ⇌ C + D. If initially the concentration of A and B are equal but at equilibrium concentration of D will be twice of that of A.

Options:
A 4 / 9
B 9 / 4
C 1 / 9
D 4

The correct answer is:
4

Solution:
at t = 0 at t = t    A + B → C + D n n 0 0 x x 2x 2x
Kc=[C][D][A][B]=2x.2xx.x=4

Topic: Chemistry, Chemical Equilibrium, NEET
What will be the equivalent resistance of circuit shown in figure between two points A and D ?

Options:
A 1 0 Î©
B 2 0 Î©
C 4 0 Ω
D 3 0 Ω

The correct answer is:
3 0 Ω

Solution:
Equivalent Circuit
Equivalent Resistance of circuit
= 1 0 + 2 0 Ã 2 0 2 0 + 2 0 + 1 0 = 1 0 + 1 0 + 1 0 = 3 0 Î©

Topic: Physics, Current Electricity, NEET
What will be the final voltage on the capacitors when a similar capacitor with no dielectric, charged to U0= 78 V, is connected to an uncharged capacitor with a dielectric, where the relative permittivity varies with the applied voltage (U) as ε = αU, and α = 2V⁻¹?

Options:
A 4V
B 5V
C 6V
D 7V

The correct answer is:
6V

Solution:
Correct Option is : (C)
6V

Topic: Chemistry, Capacitance, NEET
What will be the force acting on a particle moving along a circle of radius R, if its kinetic energy k depends on the distance covered as k=as2?

Options:
A 2aÂ R2s
B 2as1+s2R212
C 2as2R
D 2Â as

The correct answer is:
2as1+s2R212

Solution:
Given, 12mv2=as2
â v=s2am
â´ aR=v2R=2as2mR .... (i)
at=dvdt=dvds.dsdt=vdvds .... (ii)
From equation (i)
at=s2am2am=2asm ..... (iii)
So, net accelerations =aR2+at2
= 2as2mR2+2asm2
Hence, a0= 2asm1+sR2
â´ F=ma0=2as1+sR2

Topic: Physics, Work Power Energy, NEET
What will be the Freundlich's adsorption isotherm equation at high pressure?

Options:
A xm=k
B xm=kp
C None of these
D x m = k p

The correct answer is:
xm=k

Solution:
Freundlich's adsorption isotherm is given as:
x m =Kp 1 n
When x=1,xm=kp at low pressure
When n>1,xm=k at high pressure

Topic: Chemistry, Surface Chemistry, NEET
What will be the geometry of XeOF4 according to VSEPR theory?

Options:
A Trigonal bipyramidal
B Square pyramidal
C Pentagonal planar
D Square planar

The correct answer is:
Square pyramidal

Solution:
In XeOF4, the central Xe atom is bonded to O atom through a double bond and to F atoms through single bonds. So the total number of bonds formed by Xe atom in the molecule is six. Thus, out of the eight valence electrons in Xenon, two are left unused in bonding and will be present as one lone pair.

The total number of bond pairs is five (double bond is considered as a single super pair). The geometry of the molecules with four bond pairs and one lone pair is square pyramidal as shown below-

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
What will be the length of a second’s pendulum on the moon, considering the length of a second’s pendulum on the surface of Earth is 1m?

Options:
A 1m
B 1/6m
C 6m
D 1/12m

The correct answer is:
1/6m

Solution:
Correct Option is : (B)
1/6m

Topic: Chemistry, Oscillations, NEET