datavorous/entrance-exam-dataset huggingface dataset:
With respect to blood groups, the person having _______ blood group is definitely homozygous.

Options:
A A
B B
C AB
D O

The correct answer is:
O

Solution:
ABO blood group system is controlled by 3 different alleles IA , IB and i. Person with blood group A may have genotypes IAIA or IAi . Person with blood group B may have genotypes IBIB or IBi . Person with blood group O has genotype ii(recessive homozygous).

Topic: Biology, Principles of Inheritance and Variation, NEET
With respect to Chargaff's rule, select the option that shows appropriate base pairing.

Options:
A AG, CT
B AC, GT
C AT, GC
D All of these

The correct answer is:
AT, GC

Solution:
In DNA, Adenine always pairs with Thymine and Guanine always pairs with Cytosine, this is called complementary base pairing.

Topic: Biology, Molecular Basis of Inheritance, NEET
With respect to fungal sexual cycle, choose the correct sequence of events

Options:
A Karyogamy, Plasmogamy and Meiosis
B Meiosis, Plasmogamy and Karyogamy
C Plasmogamy, Karyogamy and Meiosis
D Meiosis, Karyogamy and Plasmogamy

The correct answer is:
Plasmogamy, Karyogamy and Meiosis

Solution:
In the fungal sexual cycle, Plasmogamy occurs, then Karyogamy and at last meiosis occurs.

Topic: Biology, Biological Classification, NEET
With respect to metaphase, which of the following statements is incorrect?

Options:
A Complete disintegration of nuclear envelope takes place
B Chromosomes are highly condensed
C Metaphase chromosomes are made up of four sister chromatids held together by centromere
D Chromosomes lie at the equator of the cell

The correct answer is:
Metaphase chromosomes are made up of four sister chromatids held together by centromere

Solution:
Chromosome with 4 sister chromatids are not present during Metaphase.
Metaphasic chromosome consist of 2 chromatids attached together by a centromere. This is the thickest and shortest chromosome with prominent structure.

Topic: Biology, Cell Cycle and Cell Division, NEET, NEET 2022 (Phase 2)
With respect to Miller's experiment, which of the following condition is not applicable?

Options:
A Temperature = 800Â°C
B Gases in flask = CH4, NH3, H2 and H2O
C Organic compounds obtained = Nitrogen compounds like nucleotides
D Electrodes = To produce spark.

The correct answer is:
Organic compounds obtained = Nitrogen compounds like nucleotides

Solution:
Experimental proof of theory of chemical evolution [by S.L. Miller (American scientist) in 1953]. Similar atmospheric conditions were developed on a laboratory scale - Electric discharge in a closed flask containing CH4, H2, NH3 and water vapour at 800â°C. Organic compounds obtained = Few amino acids were obtained.

Topic: Biology, Evolution, NEET
With respect to photoperiodism, site of perception of light/dark duration is

Options:
A Root apex
B Shoot apex
C Flower
D Leaf

The correct answer is:
Leaf

Solution:
The response of plants to periods of day/night is termed as photoperiodism. The shoot apices cannot perceive the photoperiods. Leaves are the site of perception of light/dark. The photoperiodic stimulus is received by the leaves, as a result of which a flowering hormone is produced in them which is then transported to the apical tip, causing the initiation of floral primordia.

Topic: Biology, Plant - Growth and Development, NEET
With respect to RFLP, arrange the following sentences in order.
I. Agarose gel electrophoresis
II. Isolation on DNA
III. Cutting with Restriction Enzyme
IV. PCR

Options:
A I, II, III, IV
B II, I, IV, III
C II, III, IV, I
D II, IV, III, I

The correct answer is:
II, IV, III, I

Solution:
RFLP is a genetic marker, which is used to detect mutation in DNA responsible for the genetic disorder. The DNA is isolated from the suspect organism and DNA of interest is amplified by PCR. Then, it’s incubated with restriction enzymes overnight and the digested DNA is analyzed on agarose gel electrophoresis.

Topic: Biology, Biotechnology - Principles and Processes, NEET
With respect to the ABO group, there are four major blood types because this blood group is determined by

Options:
A Three alleles, all of which are recessive
B Three alleles, of which, two are recessive and the third is dominant
C Three alleles, of which two are co-dominant and the third is recessive
D Three alleles, all of which are co-dominant

The correct answer is:
Three alleles, of which two are co-dominant and the third is recessive

Solution:
Blood group is determined by three alleles - IA, IB and IO. Alleles IA and IB are codominant. Blood group A is determined by IA IA or IA IO. Blood group B is IB IB or IB IO. Blood group O is IO IO. Blood group AB is IA IB.

Topic: Biology, Principles of Inheritance and Variation, NEET
With respect to the ABO group, there are four major blood types because this blood group is determined by

Options:
A Three alleles, all of which are recessive
B Three alleles, of which, two are recessive and the third is dominant
C Three alleles, of which two are co-dominant and the third is recessive.
D Three alleles, all of which are co-dominant

The correct answer is:
Three alleles, of which two are co-dominant and the third is recessive.

Solution:
Blood group is determined by three alleles â I A , I B ,ââandââ I o . Alleles I A âandââ I B are codominant. Blood group A is determined by I A ââ I A ââorââ I A ââ I o . Blood group B is determined by I B â I B ââorââ I B ââ I o . Blood group O is determined by I o ââ I o . Blood group AB is I A ââ I B .

Topic: Biology, Principles of Inheritance and Variation, NEET
With respect to the Amazonian rainforests, a few estimations of various organisms are listed below:

(a) 40,000 species of plants
(b) 300 species of fishes
(c) 1,300 species of reptiles
(d) 427 species of mammals
(e) 527 species of amphibians

Which of these estimations are incorrect?

Options:
A (a), (b), (c)
B (d), (e)
C (b), (c), (e)
D (a), (c), (e)

The correct answer is:
(b), (c), (e)

Solution:
The largely tropical Amazonian rain forest in South America has the greatest biodiversity on earth- it is home to more than 40,000 species of plants, 3,000 of fishes, 1,300 of birds, 427 of mammals, 427 of amphibians, 378 of reptiles and of more than 1,25,000 invertebrates. Scientists estimate that in these rain forests there might be at least two million insect species waiting to be discovered and named.

Topic: Biology, Biodiversity and its Conservation, NEET
With respect to the picture given below, which of the following methods will be implemented to obtain more progeny of this animal?

Options:
A Cross-breeding
B Outcrossing
C Interspecific hybridization
D MOET

The correct answer is:
Interspecific hybridization

Solution:
Interspecific hybridisation: In this method, male and female animals of two different related species are mated. In some cases, the progeny may combine desirable features of both the parents, and may be of considerable economic value, e.g., the mule.
The given picture is that of a mule.

Topic: Biology, Strategies for Enhancement in Food Production, NEET
With respect to the potential of emitter, base and collector, a NPN transistor conducts when

Options:
A both collector and emitter are positive with respect to the base
B collector is positive and emitter is negative with respect to the base
C collector is positive and emitter is at same potential as the base
D both collector and emitter are negative with respect to the base

The correct answer is:
collector is positive and emitter is negative with respect to the base

Solution:
The transistor conducts in active state in which and input circuit is forward biased and output circuit is reversed biased

Topic: Physics, Semiconductors, NEET
With respect to the seed diagram given below, choose the option with the correct labelling.

Options:
A A - cotyledon, D - root tip
B B - shoot apical meristem, C - endosperm
C D - epicotyl root axis, F - seed coat
D B - cotyledon, D - hypocotyl root axis

The correct answer is:
B - cotyledon, D - hypocotyl root axis

Solution:
In this seed diagram, the labelled parts are:
A - seed coat
B - cotyledon
C - shoot apical meristem
D - hypocotyl root axis
E - root tip
F - endosperm

Topic: Biology, Sexual Reproduction in Flowering Plants, NEET
With respect to their classification, find the odd one out from the following.

Options:
A Sea cucumber
B Sea hare
C Sea lily
D Sea urchin

The correct answer is:
Sea hare

Solution:
Echinus (sea urchin), Antedon (sea lily), Cucumaria (sea cucumber) belong to phylum Echinodermata. They are all marine with radial symmetry and have an endoskeleton of calcareous ossicles. Aplysia (sea hare) is a mollusc.

Topic: Biology, Animal Kingdom, NEET
With respect to their function, identify the odd one from the cranial nerves given below.

Options:
A Olfactory nerve
B Optic nerve
C Oculomotor nerve
D Vestibulocochlear nerve

The correct answer is:
Oculomotor nerve

Solution:
The olfactory nerve, optic nerve and vestibulocochlear nerve are purely sensory in function. The oculomotor nerve is the third cranial nerve. It enters the orbit via the superior orbital fissure and innervates extrinsic eye muscles that enable most movements of the eye and that raise the eyelid. The oculomotor nerve is purely motor in function. Hence, it is an odd one.

Topic: Biology, Neural Control and Coordination, NEET
With the help of several ommatidia, a cockroach can receive several images of an object. This kind of vision is called:

Options:
A Nocturnal vision, with less sensitivity and less resolution
B Mosaic vision, with more sensitivity but less resolution
C Mosaic vision, with more resolution but less sensitivity
D Nocturnal vision, with more sensitivity and more resolution

The correct answer is:
Mosaic vision, with more sensitivity but less resolution

Solution:
Cockroaches belong to phylum Arthropods. The body is divisible into Head, Thorax and Abdomen. Head contains eyes, antennae and mouthparts. There are two pairs of eyes seen in cockroaches : Compound and simple eyes. Compound eyes contain small structures known as Ommatidia and each ommatidium has one lens. There are around 2000 ommatidium in each eye of cockroaches.This forms a Mosaic vision. This vision helps in forming many images of an object and thus helps in alertness of the insect and thus is more sensitive. Since ommatidia are very small structures the image which is formed is of less resolution.

Topic: Biology, Structural Organisation in Animals, NEET
With the help of suitable examples, explain the property of H2O2that is responsible for its bleaching action?

Options:
A H2O2decomposes to release oxygen gas, which aids in bleaching.
B H2O2is a strong reducing agent and can remove colorants.
C H2O2reacts with stains to form colorless products.
D H2O2reacts with chlorine to produce a bleaching effect.

The correct answer is:
H2O2is a strong reducing agent and can remove colorants.

Solution:
Correct Option is : (B)
H2O2is a strong reducing agent and can remove colorants.

Topic: Chemistry, Hydrogen, NEET
With the propagation of a longitudinal wave through a material medium, the quantities transmitted in the propagation direction are

Options:
A energy, momentum and mass
B energy
C energy and mass
D energy and linear momentum

The correct answer is:
energy

Solution:
With the propagation of a longitudinal wave. Energy alone is propagated.

Topic: Physics, Waves and Sound, NEET
With what minimum speed v must a small ball should be pushed inside a smooth vertical tube from a height h so that it may reach the top of the tube? The radius of the tube is R.

Options:
A 2g h+2R
B g5R+2h
C g5R-2h
D 2g2R-h

The correct answer is:
2g2R-h

Solution:
To reach at highest point of tube.
Final velocity , v=0
â´12 mv2+mgh=mg 2R
âv=2g2R-h

Topic: Physics, Laws of Motion, NEET
With what neutral molecule is ClO–isoelectronic? Is that molecule a Lewis base?

Options:
A O2, Yes
B N2, Yes
C O2, No
D N2, No

The correct answer is:
O2, Yes

Solution:
Correct Option is : (A)
O2, Yes

Topic: Chemistry, p Block Elements (Group 13 & 14), NEET
With what type of radii should the atomic radii of noble gases be compared?

Options:
A Covalent radii
B Metallic radii
C Van der Waals radii
D Ionic radii

The correct answer is:
Van der Waals radii

Solution:
The atomic radii of noble gases should be compared not with the covalent radii but with the van der Waals radii of other elements.

Topic: Chemistry, Classification of Elements and Periodicity in Properties, NEET
With which among the following reagents, a carbonyl compound reacts to form Schiff’s base?

Options:
A p-Roasaniline
B Brady’s reagent
C Primary amine
D Ethylene glycol

The correct answer is:
Primary amine

Solution:
Correct Option is : 3
Primary amine

Topic: Chemistry, Aldehydes and Ketones, NEET
With which group of elements does dihydrogen primarily form molecular compounds?

Options:
A s-block elements
B p-block elements
C d-block elements
D f-block elements

The correct answer is:
p-block elements

Solution:
Dihydrogen primarily forms molecular compounds with most of the p-block elements.

Topic: Chemistry, Hydrogen, NEET
With which of the following electronic configuration an atom has the lowest ionisation enthalpy?

Options:
A $1 s^2 2 s^2 2 p^3$
B $1 s^2 2 s^2 2 p^6 3 s^1$
C $1 s^2 2 s^2 2 p^6$
D $1 s^2 2 s^2 2 p^5$

The correct answer is:
$1 s^2 2 s^2 2 p^6 3 s^1$

Solution:
The factors on which the ionisation energy depend is atomic size. I.E. decreases as the atomic size increases. So the attractive force decreases.
Also as the number of shells increases screening effect also increases and hence the I.E. tends to decrease.
Related Theory
The more electron shells there are, the greater the shielding effect experienced by the outermost electrons. As a result, atoms will be larger.

Topic: Chemistry, Classification of Elements and Periodicity in Properties, NEET, NEET 2007
With which of the following metal dil. HNO3 produces nitrous oxide?

Options:
A Ag
B Zn
C Cu
D Fe

The correct answer is:
Zn

Solution:
4Zn+ 10 HNO 3 hot&dil. →4Zn ( NO 3 ) 2 +5 H 2 O+ N 2 O

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), NEET
With which of the following metals, CO forms a volatile carbonyl complex?

Options:
A Na
B Sn
C Ni
D Hg

The correct answer is:
Ni

Solution:
Ni(CO)4 is a volatile compound.

Topic: Chemistry, d and f Block Elements, NEET
With which one of the following elements silicon should be doped so as to give p-type of semiconductor?

Options:
A Germanium
B Arsenic
C Selenium
D Boron

The correct answer is:
Boron

Solution:
The n-type semiconductors are obtained when Si or Ge are doped with elements of group 15 , eg, arsenic (As), while p-type semiconductors are obtained when Si or Ge are doped with traces of elements of group 13 , ie, indium (In), boron (B) .
Note : The conductivity of semiconductors increases with rise in temperature.

Topic: Chemistry, Electrochemistry, NEET, NEET 2008 (Screening)
Withdrawal of which of the following hormone is the immediate cause of menstruation?

Options:
A progesterone
B estrogen
C $\mathrm{FSH}$
D FSH-RH

The correct answer is:
progesterone

Solution:
There is no menstrual cycle during pregnancy due to the secretion of progesterone hormone by the corpus luteum. The progesterone hormone inhibits the production of the gonadotropic hormones from the pituitary and prevents the uterine lining from sloughing and supports pregnancy.

Topic: Biology, Human Reproduction, NEET, NEET 2006
Within a period, where do elements with lower chemical reactivity tend to be located?

Options:
A At the beginning of the period
B In the middle of the period
C At the end of the period
D They are evenly distributed throughout the period

The correct answer is:
In the middle of the period

Solution:
Elements with lower chemical reactivity tend to be located towards the middle of a period.

Topic: Chemistry, Classification of Elements and Periodicity in Properties, NEET
Within each pair of element F & Cl, S & Se, and Li & Na, respectively, the elements that release more energy upon electron gain are

Options:
A Cl, S and Li
B F, S and Li
C Cl, Se and Na
D F, Se and Na

The correct answer is:
Cl, S and Li

Solution:
Cl>F (in case of fluorine addition of electron becomes little tough than chlorine so electron affinity is less than chlorine it is due to more electron density and smaller size of fluorine atom which causes more electron repulsion)
S>Se and Li>Na (as on moving down the group size increases, and effective nuclear charge decreases so electron affinity decreases.

Topic: Chemistry, Classification of Elements and Periodicity in Properties, NEET
Within which range of atomic numbers,is there a significant increase in the density of these elements?

Options:
A From Z = 1 to Z = 22.
B From Z = 22 to Z = 29.
C From Z = 29 to Z = 50.
D From Z = 50 to Z = 75.

The correct answer is:
From Z = 22 to Z = 29.

Solution:
A significant increase in density is noted from titanium (Z = 22) to copper (Z = 29).

Topic: Chemistry, d and f Block Elements, NEET
Wobble hypothesis cannot be applied to the tRNA carrying which of the following amino acids.

Options:
A Tryptophan and Cysteine
B Cysteine and Serine
C Tryptophan and Methionine
D Serine and Methionine

The correct answer is:
Tryptophan and Methionine

Solution:
Some amino acids are coded by more than one codon, hence the code is degenerate. This was explained by Francis Crick as a Wobble hypothesis where only the first two bases of the codon have a precise pairing with the bases of the anticodon of tRNA, while the pairing between the third bases of codon and anticodon may sway or move unsteadily. Methionine is coded only by AUG and tryptophan is coded only by UGG. Thus we can't apply the Wobble hypothesis here.

Topic: Biology, Molecular Basis of Inheritance, NEET
Wood spirit is known as

Options:
A Methanol
B Ethanol
C Acetone
D Benzene

The correct answer is:
Methanol

Solution:
Methanol is also referred as wood alcohol or wood spirit or wood naphtha as the earliest method for its preparation was by destructive distillation of wood

Topic: Chemistry, Alcohols Phenols and Ethers, NEET
Work done by a body against friction always results in a loss of its

Options:
A kinetic energy
B potential energy.
C Total energy
D No loss

The correct answer is:
kinetic energy

Solution:
Correct Option is : (A)
kinetic energy

Topic: Chemistry, Work Power Energy, NEET
Work done by static friction on an object

Options:
A may be positive
B must be negative
C must be zero
D none of these

The correct answer is:
may be positive

Solution:
Consider the blocks shown in the figure to be moving together due to static friction between them.
The free body diagrams of both the blocks are shown below.

Work done by static friction on A is positive and on B is negative.

Topic: Physics, Work Power Energy, NEET
Work done (in kJ) by the gas in the following cyclic process is

Options:
A - 1 1
B - 1 1000
C 1 1
D 1 1000

The correct answer is:
1 1

Solution:
w = π ab
= 2 2 7 × 7 × 5 = 110 bar L
=11000 J=11 KJ
=11

Topic: Physics, Thermodynamics, NEET
World Ozone Day is celebrated on

Options:
A 16th September
B 21st April
C 5th June
D 22nd April

The correct answer is:
16th September

Solution:
World Ozone Day is celebrated on 16th September. It celebrates the progress in protecting the ozone layer and moves to phase out ozone-depleting chemicals which are also potent greenhouse gases.

Topic: Biology, Environmental Issues, NEET, NEET 2018
World Summit on Sustainable Development (2002) was held in

Options:
A Brazil
B Sweden
C Argentina
D South Africa

The correct answer is:
South Africa

Solution:
In 1992 world leaders convened an Earth Summit in Rio de Janeiro, Brazil, in search of international agreements that could help save the world from pollution, poverty and the waste of resources. Another Earth Summit was convened from 26 August to 4 September 2002 in Johannesburg, South Africa. Nagotiators for 191 countries agreed on an action plan to alleviate poverty and conserve the natural resources of earth.

Topic: Biology, Environmental Issues, NEET, NEET 2008 (Screening)
Would insulin isolated from other animals elicit an immune response in the human body?

Options:
A Yes
B No
C The paragraph does not mention
D Can elicit immune response sometimes

The correct answer is:
Yes

Solution:
Insulin taken from other animals can start immune response in human body.

Topic: Biology, Biotechnology and Its Applications, NEET
Would you expect benzaldehyde to be more reactive or less reactive in nucleophilic addition reactions than propanal? Explain your answer

Options:
A Benzaldehyde would be more reactive because it has a stronger electron-donating group attached to the benzene ring.
B Benzaldehyde would be less reactive because it is more sterically hindered than propanal.
C Benzaldehyde would be more reactive because it has a partially positive charge on the carbonyl carbon.
D The carbon atom of the carbonyl group of benzaldehyde is less electrophilic than the carbon atom of the carbonyl group present in propanal. The polarity of the carbonyl group is reduced in benzaldehyde due to resonance and hence it is less reactive than propanal.

The correct answer is:
The carbon atom of the carbonyl group of benzaldehyde is less electrophilic than the carbon atom of the carbonyl group present in propanal. The polarity of the carbonyl group is reduced in benzaldehyde due to resonance and hence it is less reactive than propanal.

Solution:
Correct Option is : (D)
The carbon atom of the carbonyl group of benzaldehyde is less electrophilic than the carbon atom of the carbonyl group present in propanal. The polarity of the carbonyl group is reduced in benzaldehyde due to resonance and hence it is less reactive than propanal.

Topic: Chemistry, Aldehydes and Ketones, NEET
Would you expect the hydrides of N, O and F to have lower boiling points than the hydrides of their subsequent group members?

Options:
A Yes, because N, O, and F hydrides have weaker intermolecular forces.
B No, because N, O, and F hydrides have stronger covalent bonds.
C Yes, because N, O, and F hydrides have larger molecular sizes.
D No, because N, O, and F hydrides have stronger hydrogen bonding due to high electronegativity

The correct answer is:
No, because N, O, and F hydrides have stronger hydrogen bonding due to high electronegativity

Solution:
Correct Option is : (D)
No, because N, O, and F hydrides have stronger hydrogen bonding due to high electronegativity

Topic: Chemistry, Hydrogen, NEET
Would you expect the second electron gain enthalpy of Oxygen as positive, more negative or less negative than the first and why?

Options:
A More negative because Oxygen is highly reactive
B Less negative because Oxygen supports combustion
C Positive because energy is needed to overcome the force of repulsion between a monovalent anion and a second incoming electron
D Positive because Oxygen is a non-metal

The correct answer is:
Positive because energy is needed to overcome the force of repulsion between a monovalent anion and a second incoming electron

Solution:
Correct Option is : (C)
Positive because energy is needed to overcome the force of repulsion between a monovalent anion and a second incoming electron

Topic: Chemistry, Classification of Elements and Periodicity in Properties, NEET
Write a balanced equation for the reaction of PCl5 with water.

Options:
A PCl5+ H2O → H,PO4+ HCl
B PCl5+ H2O → POCl3+ 2HCl
C PCl5+ 2H2O → H3PO4+ 5HCl
D PCl5+ 2H2O → H3PO4+ 3HCl

The correct answer is:
PCl5+ H2O → POCl3+ 2HCl

Solution:
Correct Option is : (B)
PCl5+ H2O → POCl3+ 2HCl

Topic: Chemistry, p Block Elements (Group 13 & 14), NEET
Write a test to detect the presence of a double bond in a molecule.

Options:
A Finkelstein Reaction
B CarbylAmine Test
C Lucas Test
D Unsaturation test with Br2water

The correct answer is:
Unsaturation test with Br2water

Solution:
Correct Option is : (D)
Unsaturation test with Br2water

Topic: Chemistry, Haloalkanes and Haloarenes, NEET