datavorous/entrance-exam-dataset huggingface dataset:
Which one of the following structural formulae of two organic compounds is correctly identified along with its related function?

Options:
A A - Triglycerid - source of energy e-major
B B - Uracil - a component of DNA
C A - Lecithin - a component of cell membrane
D B - Adenine - a nucleotide that makes up nucleic acids

The correct answer is:
A - Lecithin - a component of cell membrane

Solution:
Lecithin is a phospholipid composed of choline and inositol. It is found in all living cells as a major component of cell membrane.

Topic: Biology, Biomolecules (B), NEET, NEET 2011 (Screening)
Which one of the following structures between two adjacent cells is an effective transport pathway?

Options:
A Plasmodesmata
B Plastoquinones
C Endoplasmic reticulum
D Plasmalemma

The correct answer is:
Plasmodesmata

Solution:
The primary cell wall contains many small openings or pores situated in the primary pit fields. The cytoplasm of adjacent cells communicates through the pores by means of cytoplasmic bridges called plasmodesmata. The plasmodesmata permit circulations of fluid and passage of solutes between cells.

Topic: Biology, Transport in Plants, NEET, NEET 2010 (Screening)
Which one of the following structures in Periplaneta is correctly matched with its function?

Options:
A Hepatic caeca - absorbs digested food
B Alary muscles - contraction of spiracles
C Spermatheca - stores sperms in males
D Supra-oesophageal ganglion - Supplies nerves to antennae

The correct answer is:
Supra-oesophageal ganglion - Supplies nerves to antennae

Solution:
In the head region, the brain is represented by supra oesophageal ganglion which supplies nerves to antennae and compound eyes.
A ring of 6-8 blind tubules called hepatic or gastric caeca is present at the junction of foregut and midgut, which secrete
digestive juice.
Heart is attached to the body wall by 12 pairs of alary muscles. The heart chambers contract one after the other rapidly and it is due to contraction and relaxation of alary muscles.
There is a pair of spermathecae opening in to the genital pouch in the 6th abdominal segment of female cockroach. This is filled with sperms after copulation.

Topic: Biology, Structural Organisation in Animals, NEET
Which one of the following structures is not common to mitotic cells of higher plants?

Options:
A Cell plate
B Centriole
C Centromere
D Spindle fibres

The correct answer is:
Centriole

Solution:
Plants cells do not have centrioles. Cell plate appears during cytokinesis in dividing cells. Centromere holds the sister chromatids in a chromosome. Spindle fibres appear during metaphase.

Topic: Biology, Cell Cycle and Cell Division, NEET
Which one of the following structures is well-developed in hydrophytes?

Options:
A Aerenchyma
B Collenchyma
C Stomata
D Root system

The correct answer is:
Aerenchyma

Solution:
The cortex of hydrophytes is well developed. Major portion of it is occupied by well-developed prominent air cavity called aerenchyma, which increases buoyancy and allows a rapid gaseous exchange.

Topic: Biology, Anatomy of Flowering Plants, NEET
Which one of the following structures represents nylon 6,6 polymer?

Options:
A
B
C
D

The correct answer is:

Solution:
Nylon-6, 6 is the copolymer of adipic acid and hexamethylene diamine.

Topic: Chemistry, Polymers, NEET, NEET 2016 (Phase 2)
Which one of the following symbols and its representation, used in human pedigree analysis is correct?

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

The correct answer is:
(a)

Solution:

Topic: Biology, Principles of Inheritance and Variation, NEET, NEET 2010 (Screening)
Which one of the following symbols and its representation, used in human pedigree analysis is correct?

Options:
A
B
C
D

The correct answer is:

Solution:
Pedigree analysis is a record of the occurrence of a trait in several generations of a human family. In this male members are shown by squares and females by circles. Sibs are represented horizontally on a line in order of birth. It helps us in giving information about the genotype of an individual for the trait under investigation.

Topic: Biology, Principles of Inheritance and Variation, NEET
Which one of the following symbols represents mating between relatives in human pedigree analysis?

Options:
A
B
C
D

The correct answer is:

Solution:
In pedigree analysis:

A hollow square represents the unaffected male.

A hollow circle represents the unaffected female.

Solid box or solid circles are for affected males and affected females, respectively.

Double line between male and female is indicative of mating between relatives or consanguieous marriage.

Topic: Biology, Principles of Inheritance and Variation, NEET, NEET 2023 (All India)
Which one of the following systems is commonly used in alcoholic fermentation?

Options:
A Bacterial system
B Algal system
C Fungal system
D Viral system

The correct answer is:
Fungal system

Solution:
Yeast or Saccharomyces cerevisiae is the commonly used micro-organism in fermentation processes in the production of alcohol or ethanol. Yeast has the enzymes which convert sugar, starch, glucose into alcohol under anaerobic condition.

Topic: Biology, Microbes in Human Welfare, NEET
Which one of the following techniques does not serve the purpose of early diagnosis of a disease for its early treatment?

Options:
A Enzyme Linked Immuno-Sorbent Assey (ELISA).
B Recombinant DNA Technology
C Serum and Urine Analysis.
D Polymerase Chain Reaction (PCR) technique.

The correct answer is:
Serum and Urine Analysis.

Solution:
Diagnosis of a disease at an early stage gives better opportunity to cure the same. Urine and serum analysis are a conventional way of diagnosis which can detect a disease only on the onset of the disease.

Recombinant DNA technology, Polymerase Chain Reaction (PCR) and Enzyme Linked Immuno-sorbent Assay (ELISA) are some of the techniques that serve the purpose of early diagnosis.

PCR is now routinely used to detect HIV in suspected AIDS patients. ELISA is based on the principle of antigen-antibody interaction. A single stranded DNA or even an RNA, tagged with a probe is allowed to hybridise to its complementary DNA in a clone of cells followed by detection using autoradiography. This is also used in detection of diseases.

Topic: Biology, Biotechnology and Its Applications, NEET, NEET 2023 (All India)
Which one of the following the genus name, its two characters and its class/phylum are correctly matched?

Options:
A

Genus	Two characters	Class/phylum

Salamandra	(i) A tympanum represents ear (ii) Fertilization is external	Amphibia

B

Genus	Two characters	Class/phylum
Pteropus	(i) Skin possesses hair (ii) Oviparous	Mammalia

C

Genus	Two characters	Class/phylum
Aurelia	(i) Cnidoblast (ii) Organ level of organization	Coelenterata

D

Genus	Two characters	Class/phylum
Ascaris	(i) Body segmented (ii) Males and females distinct	Annelida

The correct answer is:

Genus	Two characters	Class/phylum

Salamandra	(i) A tympanum represents ear (ii) Fertilization is external	Amphibia

Solution:
Pteropus (flying foxes) belongs to Class Mammalia. The only platypus is an egg-laying mammal and thus flying foxes are viviparous. Aurelia is a jellyfish. These belong to Phylum Coelenterata. These are also known as Cnidaria due to the presence of Cnidoblast stinging cells. This phylum shows the tissue level of organization. Ascaris belongs to Phylum Aschelminthes and these are hermaphrodites. Salamanders are tailed amphibians. These lack external ears and fertilization is external.

Topic: Biology, Animal Kingdom, NEET
Which one of the following traits of garden pea is a recessive feature?

Options:
A Round seed shape
B Axial flower position
C Green seed colour
D Green pod colour

The correct answer is:
Green seed colour

Solution:
Yellow seed colour is dominant over green seed colour.

Topic: Biology, Principles of Inheritance and Variation, NEET
Which one of the following traits of garden pea studied by Mendel was a recessive feature?

Options:
A axial flower position
B green seed colour
C green pod colour
D round seed shape

The correct answer is:
green seed colour

Solution:
Seven traits of pea plants studied by Mendel:

Topic: Biology, Principles of Inheritance and Variation, NEET, NEET 2003
Which one of the following triplet codes, is correctly matched with its specificity for an amino acid in protein synthesis or as 'start' or 'stop' codon?

Options:
A UCG - start
B UUU - stop
C UGU - leucine
D UAC - tyrosine

The correct answer is:
UAC - tyrosine

Solution:
Codon UAC is correctly matched as it codes for amino acid tyrosine.
Stop codons are UAA, UAG and UGA. Start codon includes AUG (Methionine). UGC and UGU codes for cystine amino acid. UUC codes for phenylalanine. Codon UCG codes for serine.

Topic: Biology, Molecular Basis of Inheritance, NEET, NEET 2003
Which one of the following triplet codes is correctly matched with its specificity for an amino acid in protein synthesis or as 'start' or 'stop' codon?

Options:
A UAC - Tyrosine
B UCG - Start
C UUU - stop
D UGU - Leucine

The correct answer is:
UAC - Tyrosine

Solution:
AUG is an initiating codon. UCG codes for serine, UUU codes for phenylalanine and UGU codes for cysteine.

Topic: Biology, Molecular Basis of Inheritance, NEET
Which one of the following types of cells lacks nucleus in humans?

Options:
A Erythrocytes
B Neutrophils
C Monocytes
D Both a and c

The correct answer is:
Both a and c

Solution:
Erythrocytes and Monocytes lacks nucleus in humans.

Topic: Biology, Body Fluids and Circulation, NEET
Which one of the following types of drugs reduces fever ?

Options:
A Analgesic
B Antipyretic
C Antibiotic
D Tranquiliser

The correct answer is:
Antipyretic

Solution:
Analgesic is a painkiller, Antibiotic is anti badoial, Tranquiliser is Anti-panic or inhibits anxiety.
An antipyretic is a drug which is responsible for lowering the temperature of the feverish organism to normal but has no effect on normal temperature states.

Topic: Chemistry, Chemistry in Everyday Life, NEET
Which one of the following types of organisms occupy more than one trophic level in a pond ecosystem ?

Options:
A Phytoplankton
B Fish
C Zooplankton
D Frog

The correct answer is:
Fish

Solution:
In a pond ecosystem, fishes occupy the more than one trophic levels.

Topic: Biology, Ecosystem, NEET, NEET 2009 (Screening)
Which one of the following types of reaction occurs when a peptide link in a protein is broken?

Options:
A Condensation
B Substitution
C Addition
D Hydrolysis

The correct answer is:
Hydrolysis

Solution:
Hydrolysis reaction occurs in the depeptization as follows

Topic: Chemistry, Biomolecules, NEET
Which one of the following undergoes reaction with 50% sodium hydroxide solution to give the corresponding alcohol and salt of an acid?

Options:
A Phenol
B Butanol
C Benzoic acid
D Benzaldehyde

The correct answer is:
Benzaldehyde

Solution:
Benzaldehyde will undergo Cannizzaro reaction on treatment with 50% NaOH to produce benzyl alcohol and sodium benzoate as it does not contain α-hydrogen

Topic: Chemistry, Aldehydes and Ketones, NEET
Which one of the following undergoes reduction with hydrogen peroxide in an alkaline medium?

Options:
A Mn2+
B Fe2+
C PbS
D HOCl

The correct answer is:
HOCl

Solution:
HOCl+H2O2→HCl+H2O+O2
Rest can be oxidized only as they are in their lower oxidation states.

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), NEET
Which one of the following vectors is used to replace the defective gene in gene therapy?

Options:
A Adenovirus
B Cosmid
C Ri plasmid
D Ti plasmid

The correct answer is:
Adenovirus

Solution:
Adenovirus vectors are the most commonly employed vector for cancer gene therapy. They are also used for gene therapy and as vaccines to express foreign antigens.
Related Theory
Gene therapy is an experimental technique in which genes are introduced into individual cells or tissues, to cure some hereditary diseases in which a defective allele of a gene is replaced with normal one. It involves the treatment of genetic disease by replacing the defective gene by a normal one, used in the treatment of several diseases such as SCID (Severe combined immunodeficiency), Cystic fibrosis, Sickle cell anaemia.

Topic: Biology, Biotechnology and Its Applications, NEET, NEET 2013 (Karnataka)
Which one of the following vectors is used to replace the defective gene in gene therapy?

Options:
A Retrovirus
B Cosmid
C Ri plasmid
D Ti plasmid

The correct answer is:
Retrovirus

Solution:
In gene therapy genes are inserted into a person's cells and tissues to treat a diseases. Retro viral vector is used to transfer a normal gene into an individual or embryo to take over the function of and compensate for the non functional gene.

Topic: Biology, Biotechnology and Its Applications, NEET
Which one of the following vertebrate organs receives the oxygenated blood only?

Options:
A Gill
B Lung
C Liver
D Spleen

The correct answer is:
Spleen

Solution:
Spleen and brain are the organs that receive only oxygenated blood. The spleen plays multiple roles in the body, by acting as a filter for blood and removes old red blood cells and platelets, white blood cells are stored in them. In gills and lungs, blood picks up oxygen and removes carbon dioxide. The liver receives oxygen for energy production during respiration and receives non-oxygenated blood during toxic removal.

Topic: Biology, Body Fluids and Circulation, NEET
Which one of the following will accelerate phosphorus cycle?

Options:
A Volconic activity
B Weathering of rocks
C Rain fall and storms
D Burning of fossil fuels

The correct answer is:
Weathering of rocks

Solution:
Rocks are the natural reservoir of phosphorous. They contain phosphorous in the form of phosphates, which is related in the soil with the weathering of rocks.

When rocks are weathered, minute amounts of these phosphates dissolve in soil solution and are absorbed by the roots of the plants.

Topic: Biology, Ecosystem, NEET, NEET 2022 (Phase 1)
Which one of the following will have the largest number of atoms between (i) 1g Au (s) (ii) 1g Na (s) (iii) 1g Li (s) and (iv) 1g of Cl2(g)?

Options:
A (iii) 1g Li (s)
B (ii) 1g Na (s)
C (i) 1g Au (s)
D (iv) 1g of Cl2(g)

The correct answer is:
(iii) 1g Li (s)

Solution:
Correct Option is : (A)
(iii) 1g Li (s)

Topic: Chemistry, Some Basic Concepts of Chemistry, NEET
Which one of the following will not be considered to be broadly utilitarian?

Options:
A Pollination
B Photosynthesis
C Climate moderation
D Medicines

The correct answer is:
Medicines

Solution:
The broadly utilitarian means to conserve biodiversity because of the morals and the responsibility towards nature. And also, biodiversity plays a major role in many ecosystem services. (Definition) Pollination, photosynthesis and climate moderation have a broad spectrum impact and not just beneficial to use human. Medicines comes under the narrow utilitarian groups which is for our own needs.

Topic: Biology, Biodiversity and its Conservation, NEET
Which one of the following would cause the maximum rise in temperature of 20 g of water at 30 Â°C?

Options:
A 20 g of water at 40 °C
B 40 g of water at 35 °C
C 10 g of water at 50 °C
D 4 g of water at 80 Â°C

The correct answer is:
4 g of water at 80 Â°C

Solution:
T=m1s1T1+m2s2T2m1s1+m2s2
But s1=s2, therefore,
T=m1T1+m2T2m1+m2
for 10 g of water at 50Â°
T=20Ã30+10Ã5020+10=110030
T is maximum, if we take 4 g of water at 80 Â°C.

Topic: Physics, Thermal Properties of Matter, NEET
Which one of the following would occur during bolting?

Options:
A Uptake of water
B Elongation of internodes
C Uptake of mineral salts
D Extension of lamina

The correct answer is:
Elongation of internodes

Solution:
Gibberellins promote bolting (internode elongation just prior to flowering) in beet, cabbages, and many plants with rosette habit.

Topic: Biology, Plant - Growth and Development, NEET
Which one of the following would raise the temperature of 20 g of water at 30 Â°C most when mixed with it?

Options:
A 20 g of water at 40 °C
B 40 g of water at 35 °C
C 10 g of water at 50 Â°C
D 40 g of water at 18 °C

The correct answer is:
10 g of water at 50 Â°C

Solution:
Let m gram of water, whose temperature is θ be added to 20 g of water at 30 °C.

If m ×1θ-θ0=20×1(θ0-30)

⇒(m+20)θ0=600+mθ
⇒θ0= 600+mθ20+m
For option 1

θ0= 600+mθ20+m=600+20×4020+20=35 °C

For option 2

θ0= 600+mθ20+m=600+40×3520+40=33.33 °C

For option 3

θ0= 600+mθ20+m=600+10×5020+10=36.67 °C

For option 4

θ0= 600+mθ20+m=600+40×1820+40=22 °C

We can see θ0 is maximum for option 3

Topic: Physics, Thermal Properties of Matter, NEET
Which one of the following would undergo hydrolysis most readily with aqueous sodium hydroxide to form the corresponding hydroxy derivatives?

Options:
A
B
C
D

The correct answer is:

Solution:
Here undergoes hydrolysis most readily with aqueous sodium hydroxide to form the corresponding hydroxy derivatives.
In nucleophilic aromatic substitution, electron-withdrawal causes activation, and electron-release causes deactivation. An electron-withdrawing group exerts its strongest activating influence at ortho and para positions w.r.t. the Cl atom making it more reactive towards nucleophilic substitution reactions.
Groups is most reactive towards nucleophilic substitution reaction.

Topic: Chemistry, Amines, NEET
Which one of the followings has maximum number of atoms?

Options:
A 1 g of Mgs [Atomic mass of Mg=24]
B 1 g of O2g [Atomic mass of O=16]
C 1 g of Lis [Atomic mass of Li=7]
D 1 g of Ags [Atomic mass of Ag=108]

The correct answer is:
1 g of Lis [Atomic mass of Li=7]

Solution:
Number of atoms =w molar mass ×NA×atomicity

Number of atoms in 1g of Lis = 17×NA×1

Number of atoms 1g of Ags =1108×NA×1

Number of atoms 1g of Mgs = 124×NA×1

Number of atoms 1g of O2g = 132×NA×2

Topic: Chemistry, Some Basic Concepts of Chemistry, NEET, NEET 2020 (Phase 1)
Which one of the given below is a pseudohalide?

Options:
A CN-
B ICl
C IF5
D I3-

The correct answer is:
CN-

Solution:
Pseudohalide ions and Pseudohalogens
There are certain monovalent negative ions made up of two or more electronegative atoms which exhibit properties similar to these of halide ions. Such ions are known as pseudo halide ions just as halide ions, pseudo halide ions have also corresponding dimeric molecules. These are called pseudo halogens and show properties similar to those of halogens.

Topic: Chemistry, Amines, NEET
Which one of the taxonomic aids can give a comprehensive account of complete compiled information of any one genus or family at a particular time?

Options:
A Taxonomic key
B Flora
C Herbarium
D Monograph

The correct answer is:
Monograph

Solution:
Taxonomic keys are aids for the rapid identification of unknown plants. Flora is an inventory of the plants of a defined geographical region. A herbarium is a safe place for storing specimens as well as provide a suitable atmosphere for research. A monograph is a comprehensive taxonomic treatment of a taxonomic group, generally a genus or a family, providing all taxonomic data relating to that group.

Topic: Biology, The Living World, NEET
Which one of these best describes the role of the graphite rod in the electrometallurgy of aluminium?

Options:
A The graphite rod acts as a reducing agent.
B The graphite rod conducts electricity and serves as the cathode.
C The graphite rod prevents the formation of impurities during the electrolytic process.
D The graphite rod enhances the temperature of the electrolyte.

The correct answer is:
The graphite rod conducts electricity and serves as the cathode.

Solution:
Correct Option is : (B)
The graphite rod conducts electricity and serves as the cathode.

Topic: Chemistry, General Principles and Processes of Isolation of Metals, NEET
Which one of these explains why Boron is unable to form BF₆³⁻ ion?

Options:
A Boron lacks the required number of valence electrons for the formation of BF₆³⁻ ion.
B Boron does not have the appropriate atomic size to accommodate six fluorine atoms around it.
C The electronegativity difference between boron and fluorine is too large for the formation of BF₆³⁻ ion.
D Boron is not a halogen and therefore cannot form complex ions like BF₆³⁻.

The correct answer is:
The electronegativity difference between boron and fluorine is too large for the formation of BF₆³⁻ ion.

Solution:
Correct Option is : (C)
The electronegativity difference between boron and fluorine is too large for the formation of BF₆³⁻ ion.

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), NEET
Which one of these explains why zinc is not extracted from zinc oxide through reduction using CO?

Options:
A Zinc oxide lacks the stability required for reduction using CO.
B CO does not possess the necessary reducing power for this process.
C The reduction of zinc oxide with CO is not thermodynamically favorable.
D The reaction between zinc oxide and CO is highly exothermic.

The correct answer is:
CO does not possess the necessary reducing power for this process.

Solution:
Correct Option is : (B)
CO does not possess the necessary reducing power for this process.

Topic: Chemistry, General Principles and Processes of Isolation of Metals, NEET
Which one of these is not a eukaryote? .

Options:
A Euglena
B Anabaena
C Spirogyra
D Agaricus

The correct answer is:
Anabaena

Solution:
Anabaena is a cyanobacterium (prokaryote).

Topic: Biology, Cell - The Unit of Life, NEET
Which one of these is not an acid salt ?

Options:
A NaH2PO2
B NaH2PO3
C Na2H2S2O7
D NaH2PO4

The correct answer is:
NaH2PO2

Solution:
H3PO4 is tribasic. So NaH2PO4 is acidic salt. H3PO2 is monobasic. Hence NaH2PO2 is not an acidic salt. It is a neutral salt. NaH2PO3 and Na2H2S2O7 are also acidic salts.

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), NEET
Which one of these is the value of

Options:
A 120 S cm3
B 121 S cm3
C 123 S cm3
D 124 S cm3

The correct answer is:
124 S cm3

Solution:
Correct Option is : (D)
124 S cm3

Topic: Chemistry, Electrochemistry, NEET
Which one of these statements explains how excessive content of CO₂ is responsible for global warming?

Options:
A Excessive CO₂ in the atmosphere leads to an increase in the Earth's albedo, causing temperatures to rise.
B CO₂ is a greenhouse gas that traps heat in the Earth's atmosphere. Excessive levels of CO₂ enhance the greenhouse effect, leading to a rise in global temperatures.
C High levels of CO₂ lead to a decrease in solar radiation reaching the Earth's surface, causing a drop in temperatures.
D CO₂ reacts with ozone in the stratosphere, depleting the ozone layer and allowing harmful UV radiation to reach the Earth's surface.

The correct answer is:
CO₂ is a greenhouse gas that traps heat in the Earth's atmosphere. Excessive levels of CO₂ enhance the greenhouse effect, leading to a rise in global temperatures.

Solution:
Correct Option is : (B)
CO₂ is a greenhouse gas that traps heat in the Earth's atmosphere. Excessive levels of CO₂ enhance the greenhouse effect, leading to a rise in global temperatures.

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), NEET