datavorous/entrance-exam-dataset huggingface dataset:
Roots of which of these plants contain a pigment which creates an anaerobic condition for a specific enzyme to function?

Options:
A Carrot
B Soybean
C Mustard
D Radish

The correct answer is:
Soybean

Solution:
Leghaemoglobin is a pink pigment found in the root nodules of leguminous plant where Rhizobium is present. It fuctions as oxygen scavenger and creates an anaerobic condition for nitrogenase enzyme to function. Soyabean is a legume plant so it contains leghaemoglobin in its root nodules.

Topic: Biology, Mineral Nutrition, NEET
Rose has

Options:
A Perigynous flowers with polycarpellary syncarpous gynoecium
B Perigynous flowers with polycarpellary apocarpous gynoecium
C Epigynous flowers with polycarpellary syncarpous gynoecium
D Epigynous flowers with polycarpellary apocarpous gynoecium

The correct answer is:
Perigynous flowers with polycarpellary apocarpous gynoecium

Solution:
In rose, gynoecium is situated in the centre and other parts of the flower are located on the rim of the thalamus almost at the same level.Such a flower is called perigynous flower. The ovary here is said to be half inferior. Rose has many carpels in its gynoecium which are free. Thus it has polycarpellary syncarpous gynoecium

Topic: Biology, Morphology of Flowering Plants, NEET
'Rosie', a transgenic cow, is known to produce a type of milk which has all the following characteristics, except it

Options:
A has protein content of 2.4 g/lit
B has human α -lactalbumin
C has more balanced diet than normal cow milk for babies
D was first produced in 2001

The correct answer is:
was first produced in 2001

Solution:
By combining nutritional and genetic interventions, researchers are developing 'medicine milk' rich in specific milk components that have implications in health as well as treatment. The extra gene (transgene) is present in every cell in the transgenic cow. However, it is only expressed in mammary tissue and therefore only in cow milk. One such example is Rosie - the first transgenic cow developed in 1997.

Topic: Biology, Biotechnology and Its Applications, NEET
'Rosie' a transgenic cow is known to produce a type of milk which has all the following characteristics except:

Options:
A Protein content of 2.4 gm/litre
B Has human α-lactalbumin
C More balanced diet than normal cow milk for babies
D Was produced for the first time in year 2001

The correct answer is:
Was produced for the first time in year 2001

Solution:
In 1997 (not 2001), the first transgenic cow, Rosie, produced human protein-enriched milk at 2.4 grams per litre. This transgenic milk is a more nutritionally balanced product than natural bovine milk and could be given to babies or the elderly with special nutritional or digestive needs. Rosie's milk contains the human gene alpha-lactalbumin.

Topic: Biology, Biotechnology and Its Applications, NEET
Rosie is

Options:
A transgenic cow with a human gene.
B transgenic goat with a human gene.
C transgenic cow with a pig gene.
D transgenic goat with a pig gene.

The correct answer is:
transgenic cow with a human gene.

Solution:
In 1997, the first transgenic cow, Rosie, produced human protein-enriched milk (2.4 grams per litre). The milk contained the human alpha-lactalbumin and was nutritionally a more balanced product for human babies than natural cow-milk.

Topic: Biology, Biotechnology and Its Applications, NEET
Rotation around carbon-carbon single bond of ethane is not completely free. Justify the statement.

Options:
A The statement is incorrect; rotation around the carbon-carbon single bond in ethane is entirely free.
B The statement is inaccurate because ethane has a fully single bond character in the C-C single bond.
C The rotation about C—C bond is restricted because of repulsion between electron cloud of C—H bonds on either carbon atoms.
D The statement is accurate due to the steric hindrance between the two carbon atoms.

The correct answer is:
The rotation about C—C bond is restricted because of repulsion between electron cloud of C—H bonds on either carbon atoms.

Solution:
Correct Option is : (C)
The rotation about C—C bond is restricted because of repulsion between electron cloud of C—H bonds on either carbon atoms.

Topic: Chemistry, Hydrocarbons, NEET
Round up the following upto three significant figures: (i) 0.04597 and (ii) 2808

Options:
A (i)0.046 and (ii)2810
B (i)0.046 and (ii)2806
C (i)4.60 and (ii)2.810
D (i)46.0 and (ii)28.10

The correct answer is:
(i)0.046 and (ii)2810

Solution:
Correct Option is : (A)
(i)0.046 and (ii)2810

Topic: Chemistry, Some Basic Concepts of Chemistry, NEET
Round up the following upto three significant figures: (i) 34.216 and (ii) 10.4107

Options:
A (i)3.421 and (ii)104.10
B (i)34.216 and (ii)10.410
C (i)342.1 and (ii)1.0410
D (i)34.2 and (ii)10.4

The correct answer is:
(i)34.2 and (ii)10.4

Solution:
Correct Option is : (D)
(i)34.2 and (ii)10.4

Topic: Chemistry, Some Basic Concepts of Chemistry, NEET
Roundworms are different from Platyhelminthes in which of the following feature/s?

Options:
A Roundworms are triploblastic
B Roundworms have a complete digestive system
C Roundworms have flame cells
D All of the above

The correct answer is:
Roundworms have a complete digestive system

Solution:
Platyhelminthes have an incomplete digestive system, but the digestive system is complete in Aschelminthes or roundworms.

Topic: Biology, Animal Kingdom, NEET
R.Q. is the ratio of

Options:
A CO2 produced to substrate consumed
B CO2 produced to O2 consumed
C oxygen consumed to water produced
D oxygen consumed to CO2 produced.

The correct answer is:
CO2 produced to O2 consumed

Solution:
The ratio of the volume of CO2 released to volume of O2 absorbed in the respiratory process is termed as the respiratory ratio or Respiratory Quotient.
R.Q.=Volume of CO evolvedVolume of O absorbed
Value of R.Q. varies from one respiratory substrate to another, e.g., R.Q. of carbohydrates is equal to 1,
R.Q. of lipids and proteins are less than 1, that of organic acid is greater than 1.

Topic: Biology, Respiration in Plants, NEET
RQ of fats and proteins is

Options:
A 1
B < 1
C > 1
D ∞

The correct answer is:
< 1

Solution:
Respiratory substrate	Respiratory quotient (RQ)
Carbohydrates	1
Fatty acid	0.7
Proteins	0.9
Organic acids	More than 1

Topic: Biology, Respiration in Plants, NEET
Rules for Nomenclature are given by certain organizations and are universal. Which one of the following is not a rule for naming an organism?

Options:
A Biological names should be in Latin
B The first word in a biological name represents the genus name, and the second is a specific epithet
C The names are written in italicized font.
D When written by hand, the names are to be underlined together with epithet.

The correct answer is:
When written by hand, the names are to be underlined together with epithet.

Solution:
Biological names are written in Latin language, if written in other languages it should be Latinised. Names are written in italics font to indicate Latin origin, if handwritten the names should be separately underlined. The first name represents name of genus and second name is name of species. When written by hand, the names are to be underlined separately.

Topic: Biology, The Living World, NEET
Rules for Nomenclature are given by certain organizations and are universal. Which one of the following is not a rule for naming an organism?

Options:
A Biological names can be written in any language
B The first word in a biological name represents the genus name, and the second is a specific epithet.
C The names are written in Latin and are italicized
D When written by hand, the names are to be underlined separately.

The correct answer is:
Biological names can be written in any language

Solution:
Biological names are written in Latin only if derived from other languages than they are Latinised. The names are written in italicized to indicate Latin origin. The scientific name consists of two parts the first name is the name of genus and the second is the name of species called a specific epithet.

Topic: Biology, The Living World, NEET
Rust and smut disease of fungi are caused by fungi belonging to

Options:
A

Rust	Smut	Ascomycetes

Puccinia	Ustilago

B

Smut	Rust	Basidiomycetes

Puccinia	Ustilago

C

Rust	Smut	Basidiomycetes

Puccinia	Ustilago

D

Smut	Rust	Ascomycetes

Puccinia	Ustilago

The correct answer is:

Rust	Smut	Basidiomycetes

Puccinia	Ustilago

Solution:
Rust of wheat is caused by Puccinia and smut is caused by Ustilago. Both are basidiomycetes fungi, and they are parasites on living plant body.

Topic: Biology, Biological Classification, NEET
Rust disease is caused by fungi belonging to

Options:
A Deuteromycetes
B Basidiomycetes
C Fungi imperfect
D Ascomycetes

The correct answer is:
Basidiomycetes

Solution:
Rust of wheat is caused by Puccinia and smut is caused by Ustilago. Both are basidiomycetes fungi and they are parasitic on living plant body.

Topic: Biology, Biological Classification, NEET
Rutherford's α - particle dispersion experiment concludes

Options:
A All positive ions are deposited at small part
B All negative ions are deposited at small part
C Proton moves around the electron
D Neutrons are charged particles

The correct answer is:
All positive ions are deposited at small part

Solution:
All positive ions are deposited at small part (nucleus of atoms).

Topic: Chemistry, Structure of Atom, NEET
Rye has two kinds of varieties: autumn and spring varieties. The correct statement about them is

Options:
A Spring variety is harvested in spring while the autumn variety is harvested in autumn
B Spring variety dies in spring while the autumn variety dies in autumn
C Spring variety is planted in spring while the autumn variety is planted in autumn
D Spring variety is grown in tropical countries while the autumn variety is grown in temperate countries

The correct answer is:
Spring variety is planted in spring while the autumn variety is planted in autumn

Solution:
The spring variety is normally planted in the spring and come to flower and produce grain before the end of the growing season. Winter varieties, however, if planted in spring would normally fail to flower or produce mature grain within a span of a flowering season. Hence, they are planted in autumn. They germinate, and over winter come out as small seedlings, resume growth in the spring, and are harvested usually around mid-summer.

Topic: Biology, Strategies for Enhancement in Food Production, NEET
S+32O2→SO3+2x kcal
SO2+12O2→SO3+y kcal
The heat of formation of SO2 is

Options:
A (y – 2x)
B (2x + y)
C (x + y)
D (2x/y)

The correct answer is:
(y – 2x)

Solution:
S+32O2→SO3;ΔH=-2x …(i)
SO2+12O2→SO3;ΔH=-y …(ii)
By equations [(i) – (ii)]
S+O2→SO2;ΔH=(y-2x) .

Topic: Chemistry, Thermodynamics (C), NEET
SbF5 reacts with XeF4 to form an adduct. The shapes of cation and anion in the adduct are respectively.

Options:
A square planar, trigonal bipyramidal
B T-shaped, octahedral
C square pyramidal, octahedral
D square planar, octahedral

The correct answer is:
T-shaped, octahedral

Solution:
SbF 5 + XeF 4 → XeF 3 T−shaped + + SbF 6 octahedral −

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), NEET
SCl2 is the best known dihalide of sulphur, the hybrid state of sulphur in SCl2 is

Options:
A sp2
B sp3
C sp3d
D sp2d3

The correct answer is:
sp3

Solution:
In SCl2 there are two lone pair and two bond pairs around so SCl2 has bent shape and hybridisation state of sulphur is sp3 .

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
Saccharin is imide of

Options:
A
B
C
D

The correct answer is:

Solution:
Saccharin is imide of and it is formed as follows

Topic: Chemistry, Chemistry in Everyday Life, NEET
Saddle joint is present between __i__ and hinge joint is present between __ii__.

Options:
A i: Carpal and metacarpal of thumb, ii: Knee joint
B i: Tarsal, ii: between radius and ulna
C i: Carpal and metacarpal of thumb, ii: shoulder
D i: Hip joint, ii: Wrist

The correct answer is:
i: Carpal and metacarpal of thumb, ii: Knee joint

Solution:
A saddle joint is a synovial joint where one of the bones forming the joint is shaped like a saddle with the other bone resting on it like a rider on a horse. E.g. carpometacarpal joint of the thumb.
Hinge joint is a joint between 2 bones such that it allows movement along one axis only. For e.g. ankle, elbow, knee, and interphalangeal joints.
Pivot joint is found between radius and ulna.
Ball and socket joint is found in shoulder
Gliding joints are found in wrist bones.

Topic: Biology, Locomotion and Movement, NEET
Saheli, a non-steroidal contraceptive pill is:

Options:
A Once a day pill
B Once a week pill
C Once month pill
D Subcutaneous implant

The correct answer is:
Once a week pill

Solution:
Saheli (Developed at Central Drug Research Institute (CDRI), Lucknow) - It is a non-steroidal oral contraceptive for the females. It is a 'once a week' pill. Side effects are very few and the contraceptive value is high.

Topic: Biology, Reproductive Health, NEET
'Saheli' is a contraceptive drug. Select the incorrect statement about it

Options:
A Oral drug
B Non-steroidal
C Once a month pill
D High contraceptive value

The correct answer is:
Once a month pill

Solution:
Saheli (Developed at Central Drug Research Institute (CDRI), Lucknow) - It is a non-steroidal oral contraceptive for the females. It is a 'once a week' pill. Side effects are very few and the contraceptive value is high. Progestogens alone or Progestogens-estrogen combination can also be used by females as injections or implants under the skin.

Topic: Biology, Reproductive Health, NEET
Sahiwal cows in Punjab were developed through -

Options:
A Artificial selection and domestication from ancestral wild cows.
B Artificial selection and domestication of wild cows.
C Artificial selection and European wild cows.
D Artificial selection and domestication from American cows.

The correct answer is:
Artificial selection and domestication from ancestral wild cows.

Solution:
Sahiwal is considered to be one of the best milch cattle breeds of India. It was developed through artificial selection and domestication from ancestral wild cows.

Topic: Biology, Strategies for Enhancement in Food Production, NEET
Salicylaldehyde can be separated from the mixture of salicylaldehyde and p-hydroxy benzaldehyde by

Options:
A Distillation
B Fractional distillation
C Solvent extraction
D All of these

The correct answer is:
Fractional distillation

Solution:
Salicylaldehyde can be separated from the mixture of salicylaldehyde and p-hydroxy benzaldehyde by Fractional distillation.
In salicyladehyde intramolecular hydrogen bonding decreases surface area of the compound hence decreases boiling point hence the boiling point of para derivative is more than the ortho derivative so they can be separated by fractional distillation.

Topic: Chemistry, General Organic Chemistry, NEET
Salicylic acid is produced when phenol in alcoholic KOH is treated with

Options:
A CH3Cl
B CHCl3
C CH2Cl2
D CCl4

The correct answer is:
CCl4

Solution:

Topic: Chemistry, Alcohols Phenols and Ethers, NEET
Saline hydrides are known to react with water violently producing fire. Can CO2, a well-known fire extinguisher, be used in this case?

Options:
A Yes, CO2can be used as a fire extinguisher as It is heavier than dihydrogen and will be effective in isolating the burning surface from dihydrogen and dioxygen.
B No, CO2should not be used as it can react with saline hydrides and worsen the situation.
C CO2can only be used if it is mixed with water to dilute the saline hydrides.
D CO2is ineffective in this situation, and a different fire extinguishing method should be used.

The correct answer is:
Yes, CO2can be used as a fire extinguisher as It is heavier than dihydrogen and will be effective in isolating the burning surface from dihydrogen and dioxygen.

Solution:
Correct Option is : (A)
Yes, CO2can be used as a fire extinguisher as It is heavier than dihydrogen and will be effective in isolating the burning surface from dihydrogen and dioxygen.

Topic: Chemistry, Hydrogen, NEET
Salt A + S â¶ B â¶ BaCl 2 White ppt.

A is paramagnetic in nature and contains about 55% potassium. Thus A is :

Options:
A K2O
B K2O2
C KO2
D K2SO4

The correct answer is:
KO2

Solution:
2 KO 2 + S → Δ K 2 SO 4 K 2 SO 4 → BaCl 2 BaSO 4 White precipitate
In KO 2 → O 2 - due to unpaired electron in π * ABMO is paramagnetic as per MOT.
KO2 ⇒ % of K is 3 9 7 1 × 1 0 0 = 55% w/w basis

Topic: Chemistry, s Block Elements, NEET
Salt P+ H 2 SO 4 →R → BaCl 2 white ppt
(P) is paramagnetic in nature and contains about 55% K. So (P) is

Options:
A KO2
B K2O
C K2SO4
D K2O2

The correct answer is:
KO2

Solution:
KO2 is paramagnetic and contains 55% of K.
KO2+H2SO4→K2SO4+O3+H2O
BaCl 2  +  K 2 SO 4 → BaSO 4 white ppt. + 2 KCl

Topic: Chemistry, s Block Elements, NEET
Salts of A (atomic mass 15), B (atomic mass 27) and C (atomic mass 48) were electrolysed using same amount of charge. It was found that when 4.5 g of A was deposited, the masses of B and C deposited were 2.7 g and 9.6 g. The valencies of A, B and C were respectively

Options:
A 1, 3 and 2
B 3, 1 and 3
C 3, 1 and 2
D 2, 3 and 2

The correct answer is:
3, 1 and 2

Solution:
According to Faraday's second law
Mass of A Equivalent mass of A = Mass of B Equivalent mass of B = Mass of C Equivalent mass of C
4.515/n1=2.727/n2=9.648/n3
n1:n2:n3
0.3:0.1:0.2
3:1:2 .

Topic: Chemistry, Electrochemistry, NEET
Salts of …….causes the hardness of water

Options:
A Na+and K+
B Ca2+and Mg2+
C Ca2+and K+
D Ca2+and Na+

The correct answer is:
Ca2+and Mg2+

Solution:
Hardness of water is due to the presence of bicarbonates, chlorides and sulphates of Ca and Mg on it. These Ca2+ and Mg2+ ions react with the anions of fatty acids present in soaps to form curdy white precipitates. As a result, hard water does not produce lather with soap immediately.

Topic: Chemistry, s Block Elements, NEET
Sam was very tall and giant for his age and looked elder than his elder brother John. Which endocrine gland and which hormone is likely to be the cause of this abnormal growth?

Options:
A Pituitary gland, Growth Hormone
B Pituitary Gland, ACTH
C Hypothalamus, Growth Hormone
D Adrenal Glands, Glucocorticoids

The correct answer is:
Pituitary gland, Growth Hormone

Solution:
The growth hormone released by the Pituitary Gland is responsible for skeletal growth. Abnormal or excessive secretion of Growth hormone leads to increased skeletal growth also known as Gigantism.

Topic: Biology, Chemical Coordination and Integration, NEET
SAN is located in

Options:
A right ventricle
B left auricle
C right auricle
D left ventricle

The correct answer is:
right auricle

Solution:
The entire heart is made of cardiac muscles. The walls of ventricles are much thicker than that of the atria. A specialized cardiac musculature called the nodal tissue is also distributed in the heart. A patch of this tissue is present in the right upper corner of the right atrium called the sino-atrial node (SAN). SAN is also referred to as the "Pacemaker of the heart".

Topic: Biology, Body Fluids and Circulation, NEET
Sand is being dropped on a conveyor belt at the rate of $M \mathrm{~kg} / \mathrm{s}$. The force necessary to keep the belt moving with a constant velocity of $v \mathrm{~m} / \mathrm{s}$ will be

Options:
A $M v$ newton
B $2 M v$ newton
C $\frac{M v}{2}$ newton
D zero

The correct answer is:
$M v$ newton

Solution:
Force required,
$\begin{aligned}
F & =\frac{d(m v)}{d t} \\
& =v\left(\frac{d m}{d t}\right)=v M
\end{aligned}$
as velocity $v$ is constant, hence
$F=M v \text { newton }$

Topic: Physics, Center of Mass Momentum and Collision, NEET, NEET 2008 (Screening)
Sanitary landfills were adopted as the substitute for

Options:
A sewage
B biomagnification
C eutrophication
D open-burning dumps

The correct answer is:
open-burning dumps

Solution:
Landfill is the form of garbage discard where the garbage is buried deep underground and left as it is. It is a substitute for open burning dumps as it is cost efficient and does not require much scientific skill for waste management. Also, it does not pollute the air.

Topic: Biology, Environmental Issues, NEET
Sarcolemma, sarcoplasm and sarcoplasmic reticulum refer to a particular type of cell in our body. Which is this cell and to what parts of that cell do these names refer to respectively?

Options:
A Plasma membrane, Cytoplasm, Endoplasmic reticulum
B Cytoplasm, Endoplasmic reticulum, Plasma membrane
C Plasma membrane, Endoplasmic reticulum, Cytoplasm
D Endoplasmic reticulum, Cytoplasm, Plasma membrane

The correct answer is:
Plasma membrane, Cytoplasm, Endoplasmic reticulum

Solution:
The terms are referred to muscle fibre Sarcolemma – Plasma membrane Sarcoplasm – Cytoplasm Sarcoplasmic reticulum – Endoplasmic reticulum

Topic: Biology, Locomotion and Movement, NEET
Satellite DNA has proven to have a huge application in the

Options:
A genetic engineering
B organ transplantation
C sex determination
D forensic science

The correct answer is:
forensic science

Solution:
Satellite DNA are short sequences of DNA that are repeated within the DNA multiple times. Their name is such cause the repetition of the short sequence produces a different frequency for the N-bases which results in different density than the bulk DNA. This gives rise to different band patterns. These band patterns are unique for an individual making the DNA fingerprint. Thus, becoming useful for forensic science.

Topic: Biology, Molecular Basis of Inheritance, NEET
Satellite DNA is important because it:

Options:
A Shows high degree of polymorphism in population and also the same degree of polymorphism in an individual, which is heritable from parents to children.
B Does not cade for proteins and is same in all members of the population.
C Codes for enzymes needed for DNA replication.
D Codes for proteins needed in cell cycle.

The correct answer is:
Shows high degree of polymorphism in population and also the same degree of polymorphism in an individual, which is heritable from parents to children.

Solution:
Satellite DNA are the repetitive DNA which do not code for any protein. They show high degree of polymorphism and forms the basis of DNA fingerprinting.

Since DNA from every tissue from an individual show the same degree of polymorphism, they become very useful identification tool in forensic applications.

Topic: Biology, Molecular Basis of Inheritance, NEET, NEET 2015 (Phase 2)
Satellite DNA is useful tool in

Options:
A organ transplantation
B sex determination
C forensic science
D genetic engineering

The correct answer is:
forensic science

Solution:
Britten and his coworkers (1966-68) have demonstrated that many vertebrate DNAs reassociate, especially if broken into smaller pieces. This observation gave rise to the hypothesis that certain short sequences of bases are repeated hundred or more times in such DNAs. Such DNAs have been called repetitive or satellite DNAs. All eukaryotes except years contain satellite DNA. Satellite DNA regions like VNTR/RFLP are the basis of DNA fingerprinting (forensic science).

Topic: Biology, Molecular Basis of Inheritance, NEET, NEET 2010 (Screening)
Satellite RNAs are present in some:

Options:
A viroids
B prions
C bacteriophages
D plant viruses.

The correct answer is:
plant viruses.

Solution:
Plant viruses often contain parasites of their own, referred to as satellites. Satellite RNAs are highly dependent on their helper virus for both replication and encapsidation.
Related Theory
Satellite viruses are particles that contain nucleic acid genomes encoding a structural protein that encapsidates the satellite genome. Satellite RNAs do not encode capsid protein, but are packaged by a protein encoded in the helper virus genome.

Topic: Biology, Biotechnology and Its Applications, NEET, NEET 2013 (Karnataka)