datavorous/entrance-exam-dataset huggingface dataset:
To study any kind of genetic abnormality arising due to change is chromosome number, the karyotype is prepared. Which of the following stages is most suitable to develop a karyotype?

Options:
A Metaphase
B Telophase
C Anaphase
D Prophase

The correct answer is:
Metaphase

Solution:
A karyotype is a profile of organisms chromosomes that are organized by their size, pattern, and location of centromere. Chromosomes are most distinct in the metaphase stage. In the telophase stage, they regain their coiled composition. In anaphase, the chromatids separate and move towards opposite poles. In the prophase stage, the chromosomes appear thread-like and individual chromatids cannot be seen.

Topic: Biology, Cell Cycle and Cell Division, NEET
To study the dissipations of the energy of a simple pendulum, student plots a graph between square root of time and amplitude. The graph would be a

Options:
A straight line
B hyperbola
C parabola
D exponential

The correct answer is:
hyperbola

Solution:
a2t= constant
at= constant
so hyperbola.

Topic: Physics, Oscillations, NEET
To the salt solution containing chloroform, Cl2 water is added then chloroform layer turns violet. Salt contains which ion

Options:
A Cl-
B I-
C NO3-
D S2-

The correct answer is:
I-

Solution:
As Cl- is more electronegative than Br- and I-
∴ it replaces them from their salt as 2I-+Cl2→I2+2Cl-⇒Violetvapour
2Br-+Cl2→Br2+2Cl-⇒Brownvapour

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), NEET
To use a transistor as an amplifier

Options:
A emitter-base junction is forward biased and collector-base junction is reverse biased
B both junctions are forward biased.
C both junctions are reverse biased.
D it does not matter how the transistor is biased, it always works as an amplifier.

The correct answer is:
emitter-base junction is forward biased and collector-base junction is reverse biased

Solution:
E-B junction is forward bias and C-B junction is reversed bias.

Topic: Physics, Semiconductors, NEET
To verify Ohm's law, a student is provided with a test resistor RT, a high resistance R1, a small resistance R2, two identical galvanometers G1 and G2, and a variable voltage source V. The correct circuit to carry out the experiment is

Options:
A
B
C
D

The correct answer is:

Solution:
We will require a voltmeter, an ammeter, a test resistor and a variable battery to verify Ohm's law.
Voltmeter which is made by connecting a high resistance with a galvanometer is connected in parallel with the test resistor.
Further, an ammeter which is formed by connecting a low resistance in parallel with galvanometer is required to measure the current through test resistor.

Topic: Physics, Current Electricity, NEET
To what extent do you agree with the statement: "The choice of a reducing agent in a particular case depends on thermodynamic factors"?

Options:
A Completely Agree
B Somewhat Agree
C Neutral
D Disagree

The correct answer is:
Completely Agree

Solution:
Correct Option is : (A)
Completely Agree

Topic: Chemistry, General Principles and Processes of Isolation of Metals, NEET
To which group in the periodic table do alkali metals belong based on their outer electronic configuration?

Options:
A First group
B Second group
C Seventeenth group
D Eighteenth group

The correct answer is:
First group

Solution:
The paragraph states that alkali metals belong to the first group of the periodic table based on their outer electronic configuration (ns1).

Topic: Chemistry, Hydrogen, NEET
To which of the following, a bundle of His passes stimulus of contraction?

Options:
A AV node
B SA node
C Purkinje fibre
D Atrium

The correct answer is:
Purkinje fibre

Solution:
The waves of contraction originating from SA node, when reaches the AV node (pacesetter), the latter is stimulated and excitatory impulses are rapidly transmitted from it to all parts of the ventricle via bundle of His and Purkinje fibres.

Topic: Biology, Body Fluids and Circulation, NEET
To which of the following parts of a flower, the proximal end of the filament of stamen is attached?

Options:
A Pedicel or tepals
B Thalamus or petal
C Sepals or petals
D Tepals or sepals

The correct answer is:
Thalamus or petal

Solution:
A typical stamen consists of two parts, the long slender stalk called a filament and the terminal generally bilobed structure is called the anther. The proximal end of the filament is attached to the thalamus or petals of the flower.

Topic: Biology, Morphology of Flowering Plants, NEET
To which series does fructose belong?

Options:
A A-series
B B-series
C C-series
D D-series

The correct answer is:
D-series

Solution:
Fructose belongs to the D-series.

Topic: Chemistry, Biomolecules, NEET
To which type of barriers under innate immunity, do the saliva in the mouth and the tears from the eyes, belong?

Options:
A Cytokine barriers
B Cellular barriers
C Physiological barriers
D Physical barriers

The correct answer is:
Physiological barriers

Solution:
Innate immunity is the resistance to infection, which an individual possesses by virtue of his/her genetic and constitutional make up. Thus, it comprises all those defence elements with which an individual is born and, which are always available to protect a living body. Physiological barriers like body temperature, $\mathrm{pH}$ of the body fluid, and various body secretions (saliva, tears) prevent growth of many disease causing micro-organisms.
Skin is the physical barrier of the body. Its outer tough layer the stratum corneum prevents the entry of bacteria and viruses.

Topic: Biology, Human Health and Diseases, NEET, NEET 2008 (Screening)
To which types of molecules does the criterion of overlap for covalent bond formation apply?

Options:
A Homonuclear diatomic molecules
B Heteronuclear diatomic molecules
C Polyatomic molecules
D All of the above

The correct answer is:
All of the above

Solution:
The criterion of overlap applies uniformly to homonuclear diatomic molecules, heteronuclear diatomic molecules, and polyatomic molecules.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
To yield a high amount of the desired protein, which of the following culture methods is suitable in large scale production?

Options:
A Batch culture
B Fed batch culture
C Continuous culture
D Agarose culture

The correct answer is:
Continuous culture

Solution:
For industrial large scale production of product, continuous culture is desirable. For example, in case of large scale protein production, continuous culture is employed with stringent sterile control environment. In continuous culture, medium is continuously fed in the fermenter and product is extracted continuously with regular interval of time. It gives constant product quality and low cost of production than batch culture or fed batch culture in which product quality varies considerably with each batch and cost of production unnecessarily increases.

Topic: Biology, Biotechnology and Its Applications, NEET
Tobacco and Petunia belong to the family

Options:
A Poaceae
B Fabaceae
C Solanaceae
D Brassicaceae

The correct answer is:
Solanaceae

Solution:
Tobacco plant (Nicotiana tabacum) yields tobacco, while Petunia is an ornamental plant. Both the plants are the member of family Solanaceae.

Topic: Biology, Morphology of Flowering Plants, NEET
Tobacco consumption is known to stimulate the secretion of adrenaline and nor-adrenaline. The component causing this could be:

Options:
A Nicotine
B Tannic acid
C Curamin
D Catechin

The correct answer is:
Nicotine

Solution:
Nicotine stimulates adrenal gland to release adrenaline and nor-adrenaline into blood circulation, both of which raise blood pressure and increase heart rate.

Topic: Biology, Human Health and Diseases, NEET
Tobacco contains nicotine which stimulates _____X______ to release ________Y_________ into blood circulation, which increases blood pressure and rate of heart beat.

Select the correct option for X and Y.

Options:
A X-adrenal cortex gland; Y-adrenaline
B X-adrenal medulla gland; Y-epinephrine
C X-adrenal medulla gland; Y-nor-adrenaline
D both b and c

The correct answer is:
both b and c

Solution:
Tobacco contains nicotine which stimulates the adrenal medulla gland to release adrenaline or nor-adrenaline hormone into blood circulation, which increases blood pressure and rate of heartbeat.

Topic: Biology, Human Health and Diseases, NEET
Tobacco mosaic virus is a tubular filament of size:

Options:
A $300 \times 10 \mathrm{~nm}$
B $300 \times 5 \mathrm{~nm}$
C $300 \times 20 \mathrm{~nm}$
D $700 \times 30 \mathrm{~nm}$

The correct answer is:
$300 \times 20 \mathrm{~nm}$

Solution:
TMV is rod shaped measuring \(300 \times 20 \mathrm{~nm}\). It is made of RNA and proteins.

Topic: Biology, Biological Classification, NEET, NEET 2003
Tobacco Mosaic Virus (TMV) genes are

Options:
A Double stranded RNA
B Single stranded RNA
C Polyribonucleotides
D Proteinaceous

The correct answer is:
Single stranded RNA

Solution:
All viruses are nucleoprotein (Nucleic acid + Protein) in the structure. The nucleic acid (DNA and RNA) is the genetic material. In a particular virus, either DNA or RNA is genetic material; never both are present in a virus. Hence viruses are:
(i) Double-stranded DNA or ds DNA - Hepatitis B
(ii) Single-stranded DNA or ss DNA - Coliphage
(iii) Double-stranded RNA or ds RNA - Reovirus, wound Tumor virus
(iv) Single-stranded RNA or ss RNA - Tobacco mosaic virus (TMV)

Topic: Biology, Biological Classification, NEET
Tobacco plants resistant to a nematode have been developed by the introduction of DNA that produce (in the host cells)

Options:
A Sense RNA
B Anti-sense RNA
C A toxic protein
D Both sense and anti-sense RNA

The correct answer is:
Both sense and anti-sense RNA

Solution:
Using Agrobacterium vectors, nematode-specific genes were introduced into the host plant. The introduction of DNA was such that it produced both sense and anti-sense RNA in the host cells. These two RNAs being complementary to each other formed a double-stranded (dsRNA) that initiated RNAi and thus, silenced the specific mRNA of the nematode.

Topic: Biology, Biotechnology and Its Applications, NEET
Tobacco plants resistant to a nematode have been developed by the introduction of DNA that produced (in the host cells)

Options:
A both sense and anti-sense RNA
B a particular hormone
C an antifeedant
D a toxic protein

The correct answer is:
both sense and anti-sense RNA

Solution:
The Agrobacterium acted as a vector to introduce the nematode-specific genes into the tobacco plant.
The DNA in it produced both sense and antisense RNA which formed double-stranded RNA and were complementary to each other. The RNA produced caused the silencing of the expression of m-RNA and therefore proved to be lethal for the survival and infestation of the survival.

Topic: Biology, Biotechnology and Its Applications, NEET
Toddy is formed by the fermentation of

Options:
A Sap from palms
B Soyabean
C Fishes
D Bamboo shoots

The correct answer is:
Sap from palms

Solution:
‘Toddy’, a traditional drink of some parts of southern India is made by fermenting sap from palms by a microbe Caryota urens.

Topic: Biology, Microbes in Human Welfare, NEET
'Toddy' is produced by:

Options:
A fermented rice batter and coconut milk
B fermentation of sap from palms
C heating whole bulbs of garlic over the course of several weeks
D pickled vegetables

The correct answer is:
fermentation of sap from palms

Solution:
Toddy, also called palm wine, is a traditional drink in South India is made by fermenting sap from palms.

Topic: Biology, Microbes in Human Welfare, NEET
Tonoplast is a membrane surrounding the

Options:
A cytoplasm
B vacuole
C nucleus
D mitochondria

The correct answer is:
vacuole

Solution:
Large sap vacuole are present in plant cell only, they are surround by a single layered membrane called as tonoplast and the fluid present inside is called as tonoplasm or cell sap. Tonoplast is not a biomembrane and it facilitates the entry of ions into the tonoplasm against the concentration gradient from the cytoplasm.

Topic: Biology, Cell - The Unit of Life, NEET
Tonoplast is a

Options:
A plasma membrane
B vacuolar membrane
C cytoplasmic membrane
D all of these

The correct answer is:
vacuolar membrane

Solution:
Large sap vacuole is present in plant cells and is surrounded by a membrane called tonoplast and the fluid present inside is called tonoplasm. Tonoplast facilitates the movement of ions against the concentration gradient from the cytoplasm.

Topic: Biology, Cell - The Unit of Life, NEET
Top-shaped multiciliate male gametes, and the mature seed which bears only one embryo with two cotyledons, are characterised features of:

Options:
A cycads
B conifers
C polypetalous angiosperms
D gamopetalous angiosperms.

The correct answer is:
cycads

Solution:
Cycads are the gymnosperm having largest top shaped multiciliate male gametes. Conifers have sperm that do not have flagella, but instead are conveyed to the egg via a pollen tube. It is important to note that the seeds of gymnosperms are not enclosed in their final state upon the cone.

Topic: Biology, Plant Kingdom, NEET, NEET 2005
Torque of equal magnitude is applied to a solid cylinder and a solid sphere, both having the same mass and radius. Both of them are free to rotate about their axis of symmetry. If Î±1 and Î±2 are the angular accelerations of the cylinder and the sphere respectively, then the ratio Î±1Î±2 will be

Options:
A 52
B 54
C 45
D 25

The correct answer is:
45

Solution:
α1=MR22 and α2=25MR2
∴α1α2=45

Topic: Physics, Rotational Motion, NEET
Torricelli's barometer used mercury. Pascal duplicated it using French wine of density 984 kg m-3 . Determine the height of the wine column for normal atmospheric pressure.

Options:
A 10.5 m
B 6.58 m
C 7.50 m
D 10.8 m

The correct answer is:
10.5 m

Solution:
Normal atmospheric pressure, P=1.013×105N m-2
Let h be the height of the wine column. Then,
P=hρg
Or h=Pρg=1.013×105984×9.8=10.5 m

Topic: Physics, Mechanical Properties of Fluids, NEET
Total charge required for the oxidation of two moles Mn3O4 into MnO42- in presence of alkaline medium is

Options:
A 5 F
B 10 F
C 20 F
D None of these

The correct answer is:
20 F

Solution:
1 mole Mn3O4 lose 6-83Ã3=10 mole e- ,
so total charge required =2Ã10=20 F

Topic: Chemistry, Some Basic Concepts of Chemistry, NEET
Total no of bonded electrons in O2?

Options:
A 8
B 2
C 6
D 4

The correct answer is:
4

Solution:
Correct Option is : 4
4

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
Total no. of effective atoms in face centred system is:

Options:
A 1
B 8
C 4
D 3

The correct answer is:
4

Solution:
Correct Option is : 3
4

Topic: Chemistry, Solid State, NEET
Total no. of f electrons in Erbium is:

Options:
A 10
B 12
C 11
D 13

The correct answer is:
12

Solution:
Correct Option is : 2
12

Topic: Chemistry, d and f Block Elements, NEET
Total no. of f electrons in Nd3+?

Options:
A 0
B 1
C 2
D 3

The correct answer is:
3

Solution:
Correct Option is : 4
3

Topic: Chemistry, d and f Block Elements, NEET
Total no. of f electrons present in electronic configuration of Neptunium?

Options:
A 18
B 17
C 4
D 3

The correct answer is:
18

Solution:
Correct Option is : 1
18

Topic: Chemistry, d and f Block Elements, NEET
Total no of lone pairs present in NF3?

Options:
A 1
B 6
C 10
D 16

The correct answer is:
10

Solution:
Correct Option is : 3
10

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
Total number of facial bones are ____ of which ____ are paired.

Options:
A 14, 7
B 16, 5
C 14, 6
D 16, 6

The correct answer is:
14, 6

Solution:
The total number of facial bones are 14, out of which 6 are paired. The bones are as follows:
2 x Inferior nasal conchae
2 x Lacrimal bones
1 x Mandible
2 x Maxilla
2 x Nasal bones
2 x Palatine bones
1 x Vomer
2 x Zygomatic bones

Topic: Biology, Locomotion and Movement, NEET
Total number of geometrical isomers for the complex [RhCl(CO)(PPh3)(NH3)] is -

Options:
A 1
B 2
C 3
D 4

The correct answer is:
3

Solution:
Rh+ will form a square planar complex.
[M(abcd)] complex is square planar, so it will have three geometrical isomers.

Topic: Chemistry, Coordination Compounds, NEET
Total number of lone pair of electrons in central atom of XeOF4 is

Options:
A 0
B 1
C 2
D 3

The correct answer is:
1

Solution:
For formation of XeOF4 , Xe undergoes sp3d2 hybridisation and thus Xe-atom has one lone pair of electrons.

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), NEET
Total number of lone pair of electrons in I3- ion is

Options:
A 12
B 3
C 6
D 9

The correct answer is:
9

Solution:

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
Total vapour pressure of mixture of 1 mol A(PAo=150 torr) and 2 mol B(PBo=240 torr) is 200 torr. In this case

Options:
A there is positive deviation from Raoult's law
B there is negative deviation from Raoult's law
C there is no deviation from Raoult's law
D molecular masses of A and B are also required for calculating the deviation

The correct answer is:
there is negative deviation from Raoult's law

Solution:
XA=13
XB=23
P=PAoXA+PBoXB
=150×13+240×23=50+160=210 mm
Pobs.<Pcalculated
So there is negative deviation from Raoult's law.
Hint : In –ve deviation observed pressure is less than expected or calculated pressure.

Topic: Chemistry, Solutions, NEET
Total vapour pressure of mixture of
1 mol volatile component A(PÂ°A=100 mmHg) and 3 mol of volatile component B(PÂ°B=60 mmHg) is 75 mm . For such case-

Options:
A There is positive deviation from Raoultâs law
B Boiling point has been lowered
C Force of attraction between A and B is smaller than that between A and A or between B and B.
D All the above statements are correct

The correct answer is:
All the above statements are correct

Solution:
PTo=PAoXA+PBoXB
PoT=14×100+34×60=2804=70
(According to Raoult’s law)

Topic: Chemistry, Solutions, NEET
Total volume of atoms present in a face-centred cubic unit cell is (where r is atomic radius)

Options:
A 12/3πr3
B 16/3πr3
C 20/3πr3
D 24/3πr3

The correct answer is:
16/3πr3

Solution:
Number of atoms for unit cell of FCC =4
Total volume occupied =4Ã volume of 1 sphere
=4Ã43Ïr3=163Ïr3

Topic: Chemistry, Solid State, NEET
Total volume of atoms present in a fcc unit cell of a metal with radius r is

Options:
A 123πr3
B 163πr3
C 203πr3
D 243πr3

The correct answer is:
163πr3

Solution:
a=22r
Volume of the cell =a3=(22r)3=162r3
Number of spheres in fcc =8×18+6×12=4
Volume of 4 spheres =4×43πr3
=163πr3

Topic: Chemistry, Solid State, NEET
Totipotency refers to:

Options:
A Capacity to generate genetically identical plants
B Capacity to generate a whole plant from any plant cell/explant
C Capacity to generate hybrid protoplasts
D Recovery of healthy plants from diseased plants

The correct answer is:
Capacity to generate a whole plant from any plant cell/explant

Solution:
The technique of growth of plant cells, tissues, or organs in an artificially prepared nutrient medium under aseptic and controlled conditions of light and temperature is called tissue culture.
Plant tissue culture was first studied by Gottlieb Haberlandt. The concept of tissue culture is based on the property of the totipotency of the plant cells. The ability or potential of any living plant cell or explant to produce all the differentiated cells in an organism is called totipotency.

Topic: Biology, Strategies for Enhancement in Food Production, NEET, NEET 2021
Totipotent cell refers to

Options:
A An undifferentiated cells capable of developing into complete embryo
B An undifferentiated cell capable of developing into an organ
C An undifferentiated cell capable of developing into a system or entire plant
D Cells which lack the cell wall

The correct answer is:
An undifferentiated cells capable of developing into complete embryo

Solution:
Totipotent cell is an undifferentiated cell capable of developing into a complete embryo.

Topic: Biology, Strategies for Enhancement in Food Production, NEET
Totipotent cell refers to

Options:
A An undifferentiated cells capable of developing into complete embryo
B An undifferentiated cell capable of developing into an organ
C An undifferentiated cell capable of developing into a system or entire plant
D Cells which lack the capability or differentiating into an organ or system

The correct answer is:
An undifferentiated cell capable of developing into a system or entire plant

Solution:
In totipotency, an undifferentiated cell of root, stem, ovary, an embryo is put in a nutrient culture medium then it develops in a whole plant. This process is called totipotency and such cell is regarded as a totipotent cell.

Topic: Biology, Strategies for Enhancement in Food Production, NEET
Towards the lateral side of shoulder, clavicle articulates with

Options:
A acromion process of scapula
B humerus
C glenoid cavity of scapula
D sternum

The correct answer is:
acromion process of scapula

Solution:
The human skeletal system can be divided into an axial skeleton that consists of 80 bones and an appendicular skeleton that consists of 126 bones. The axial skeleton consists of those bones that are seen in the axis of the body. The appendicular skeleton consists of the bones of girdles and limbs. Pectoral girdle is the upper girdle and it consists of four bones: two clavicles and two scapulas. The clavicle is the collar bone. It is the only horizontal bone present in the body. It articulates medially with sternum and distally with acromion process of scapula.

Topic: Biology, Locomotion and Movement, NEET
Toxic agents present in food which interfere with thyroxin synthesis lead to the development of

Options:
A toxic goitre
B cretinism
C simple goitre
D thyrotoxicosis

The correct answer is:
simple goitre

Solution:
Toxic agents in food which interfere with thyroxin synthesis will lead to simple goitre. Thyrotoxicosis and toxic goitre are under the category of hyperthyroidism.

Topic: Biology, Chemical Coordination and Integration, NEET, NEET 2010 (Screening)
Toxins produced by genes cryIIAb and cryIAb control:

Options:
A Corn borer and cotton bollworm respectively
B Tobacco bud worms and Cotton bollworm respectively
C Cotton bollworms and corn borer respectively
D Cotton bollworm and tobacco bud worms respectively

The correct answer is:
Cotton bollworms and corn borer respectively

Solution:
cry gene : These are the various types of genes that code for the Bt toxins.
Example 1. cryIAc and cryIIAb code for proteins that control the cotton bollworms.
2. cryIAb code for proteins that control the corn borers.

Topic: Biology, Biotechnology and Its Applications, NEET
Toy cart tied to the end of an unstretched string of length a, when revolved moves in a horizontal circle of the radius 2a with a time period T. Now the toy cart is speeded up until it moves in a horizontal circle of radius 3a with a period T'. If Hook's law holds then

Options:
A Tâ²=32 T
B Tâ² =32T
C T′=32T
D T′=T

The correct answer is:
Tâ²=32 T

Solution:
The extension in the first case
l1=2a-a=a
from hooks law,
F=kl1
mω2L=ka
m(ω2)2a=ka
2ma2πT2=ka (1)
In the second case
m3a2πT'2=k3a-2a (2)
on dividing eq (2) by (1) we get
T'=32T

Topic: Physics, Laws of Motion, NEET
Trachea divides at the level of:

Options:
A 7th Cervical Vertebrae
B 5th Lumber Vertebrae
C 5th Thoracic Vertebrae
D 7th Thoracic Vertebrae

The correct answer is:
5th Thoracic Vertebrae

Solution:
Trachea is a straight tube also called wind pipe, which extended up to the mid thoracic cavity.
It divides at the level of 5th thoracic vertebrae into right and left bronchi or primary bronchi.

Topic: Biology, Breathing and Exchange of Gases, NEET
Tranquilizers are used for the treatment of

Options:
A Cancer
B AIDS
C Mental disease
D Physical disorder

The correct answer is:
Mental disease

Solution:
Tranquilizer or Tranquillizer, drug is used to reduce anxiety, fear, tension, agitation, and related states of mental disturbance.

Topic: Chemistry, Chemistry in Everyday Life, NEET