datavorous/entrance-exam-dataset huggingface dataset:
Which of the following is not a characteristic of endosperm development?

Options:
A The primary endosperm cell divides repeatedly
B The endosperm tissue forms a triploid endosperm tissue
C The cells of the endosperm tissue are filled with reserve food materials
D The endosperm provides energy for the embryo's growth

The correct answer is:
The endosperm provides energy for the embryo's growth

Solution:
The endosperm serves as a source of nutrition for the developing embryo, not as a source of energy.

Topic: Biology, Sexual Reproduction in Flowering Plants, NEET
Which of the following is not a characteristic of eukaryotic cells?

Options:
A Membrane-bound organelles
B Organised nucleus
C Prokaryotic genetic material
D Complex cytoskeletal structures

The correct answer is:
Prokaryotic genetic material

Solution:
Eukaryotic cells possess membrane-bound organelles, an organised nucleus, and complex cytoskeletal structures. Their genetic material is also organised into chromosomes, which is different from prokaryotic cells.

Topic: Biology, Cell - The Unit of Life, NEET
Which of the following is not a chemically modified sugar?

Options:
A Glucosamine
B N acetyl galactosamine
C Galacturonic acid
D Dihydroxy acetone

The correct answer is:
Dihydroxy acetone

Solution:
Dihydroxyacetone or DHA, is a simple carbohydrate (a triose) with formula C3H6O3. It is not a chemically modified sugar. Carbohydrates can be modified by the addition of substituents other than hydroxyl groups.

Topic: Chemistry, Biomolecules, NEET
Which of the following is not a chiral compound?

Options:
A 2-Hydroxypropanoic acid
B 2-Butanol
C 2, 3-Dibromopentane
D 3-Bromopentane

The correct answer is:
3-Bromopentane

Solution:
Caution
In chiral compound, a carbon atom is attached by four different groups.

Topic: Chemistry, General Organic Chemistry, NEET, NEET 2006
Which of the following is not a chlorinated insecticide?

Options:
A DDT
B Methoxychlor
C Parathion
D BHC

The correct answer is:
Parathion

Solution:
Parathion is

Topic: Chemistry, Chemistry in Everyday Life, NEET
Which of the following is not a chromophore

Options:
A -N=N-
B -NO
C -NO2
D -NH2

The correct answer is:
-NH2

Solution:
A dye molecule is made up of two different part (i) Chromophore (ii) Auxochrome. The groups which produce colour in a compound i.e., chromophores are usual unsaturated groups like nitro, nitroso, azo, azoxy, carbonyl and olefinic bonds Auxochrome are usually acidic / basic functional group like -OH,-COOH,-SO3H,-NH2,-NHR,-NR2 .
A compound containing only a chromophore may be coloured material but not a dye. For example azo benzene is red coloured but not a dye. Where as para amino azobenzene (anilineyellow) is a dye.

Topic: Chemistry, Chemistry in Everyday Life, NEET
Which of the following is NOT a classification of carbohydrates based on their behavior on hydrolysis?

Options:
A Monosaccharides
B Proteins
C Oligosaccharides
D Polysaccharides

The correct answer is:
Proteins

Solution:
There is a classification of carbohydrates based on their behavior on hydrolysis, but proteins are not part of this classification.

Topic: Chemistry, Biomolecules, NEET
Which of the following is not a classification within the Plantae kingdom?

Options:
A Bryophytes
B Pteridophytes
C Angiosperms
D Fish

The correct answer is:
Fish

Solution:
Bryophytes, Pteridophytes, and Angiosperms are all classifications within the Plantae kingdom. Fish is not a classification within this kingdom as it belongs to the Animalia kingdom.

Topic: Biology, Plant Kingdom, NEET
Which of the following is NOT a common application of polythene?

Options:
A Squeeze bottles
B Refrigerator dishes
C Milk crates
D Plastic bags

The correct answer is:
Milk crates

Solution:
Milk crates are commonly made from polypropene, not polythene.

Topic: Chemistry, Hydrocarbons, NEET
Which of the following is not a common biotic pollinator?

Options:
A Sunbirds
B Snakes
C Humming birds
D Gecko lizards

The correct answer is:
Snakes

Solution:
Snakes are not a common biotic pollinator.

Topic: Biology, Sexual Reproduction in Flowering Plants, NEET
Which of the following is NOT a common example of protein denaturation?

Options:
A Coagulation of egg white
B Curdling of milk
C Formation of lactic acid
D Denaturation due to a change in temperature

The correct answer is:
Formation of lactic acid

Solution:
The curdling of milk is a result of lactic acid formation, it does not classify the formation of lactic acid itself as an example of protein denaturation.

Topic: Chemistry, Biomolecules, NEET
Which of the following is not a common nucleophile that can react with alcohols in nucleophilic substitution reactions?

Options:
A Halide ion
B Alkoxide ion
C Water molecule
D Cyanide ion

The correct answer is:
Water molecule

Solution:
Water molecule is not typically considered a nucleophile in nucleophilic substitution reactions of alcohols.

Topic: Chemistry, Alcohols Phenols and Ethers, NEET
Which of the following is NOT a common product of pyrolysis of alkanes?

Options:
A Alkenes
B Alkynes
C Aromatics
D Carbon black

The correct answer is:
Alkynes

Solution:
While alkenes, aromatics, and carbon black are common products of pyrolysis of alkanes, alkynes are not typically produced in significant amounts during this process.

Topic: Chemistry, Hydrocarbons, NEET
Which of the following is NOT a common reagent for reducing nitriles to amines?

Options:
A Sodium borohydride (NaBH4)
B Lithium aluminium hydride (LiAlH4)
C Hydrogen gas (H2) with a catalyst
D Sodium cyanide (NaCN)

The correct answer is:
Sodium cyanide (NaCN)

Solution:
Sodium cyanide is not commonly used for reducing nitriles to amines.

Topic: Chemistry, Amines, NEET
Which of the following is NOT a common role of the carbonyl group in electrophilic substitution reactions?

Options:
A Deactivating the ring
B Meta-directing the incoming electrophile
C Enhancing the reactivity of the ring
D Decreasing the yield of ortho-substituted products

The correct answer is:
Enhancing the reactivity of the ring

Solution:
The carbonyl group in electrophilic substitution reactions does not enhance the reactivity of the ring; instead, it decreases the reactivity by deactivating the ring.

Topic: Chemistry, Aldehydes, Ketones and Carboxylic Acids, NEET
Which of the following is NOT a commonly used catalyst for the addition of dihydrogen to alkenes?

Options:
A Palladium
B Silver
C Platinum
D Iron

The correct answer is:
Silver

Solution:
While palladium, platinum, and nickel are commonly used catalysts for the addition of dihydrogen to alkenes, silver is not typically used as a catalyst for this reaction.

Topic: Chemistry, Hydrocarbons, NEET
Which of the following is not a component of blood?

Options:
A Plasma
B Formed elements
C Water
D Lymph

The correct answer is:
Lymph

Solution:
Lymph is not a component of blood but is another body fluid that helps in the transport of certain substances.

Topic: Biology, Body Fluids and Circulation, NEET
Which of the following is not a component of downstream processing?

Options:
A Separation
B Purification
C Preservation
D Expression

The correct answer is:
Expression

Solution:
After the completion of the biosynthetic pathway, down streaming processing includes all the steps involved in isolation, purification and preservation of products. All the steps before the completion of a pathway are included in upstreaming processing i.e., expression of genetic material.

Topic: Biology, Biotechnology - Principles and Processes, NEET, NEET 2016 (Phase 2)
Which of the following is not a component of downstream processing?

Options:
A Separation
B Purification
C Preservation
D Expression

The correct answer is:
Expression

Solution:
After the formation of the product in bioreactor, it undergoes through some processes before a finished product to be ready for marketing. Downstream processing includes separation and purification process. The product obtained is subjected to quality control. Testing and kept in suitable preservatives.

Topic: Biology, Biotechnology - Principles and Processes, NEET
Which of the following is not a component of Fallopian tube?

Options:
A Isthmus
B Infundibulum
C Ampulla
D Uterine fundus

The correct answer is:
Uterine fundus

Solution:
The correct answer is option (4) as uterine fundus is the upper, dome-shaped part of the uterus, above the opening of fallopian tubes.
- Option (1) is incorrect as isthmus is the last and narrow part of the oviduct that links to the uterus.
- Option (2) is incorrect as infundibulum is the part of oviduct which is closer to the ovary.
- Option (3) is incorrect as ampulla is the wider part of the oviduct.

Topic: Biology, Human Reproduction, NEET, NEET 2024
Which of the following is NOT a component of glucose's molecular formula?

Options:
A Carbon
B Hydrogen
C Oxygen
D Nitrogen

The correct answer is:
Nitrogen

Solution:
The molecular formula of glucose, C6H12O6, consists of carbon, hydrogen, and oxygen atoms, but it does not contain nitrogen.

Topic: Chemistry, Biomolecules, NEET
Which of the following is NOT a component of Lucas reagent?

Options:
A Concentrated sulfuric acid
B Concentrated hydrochloric acid
C Zinc chloride
D Water

The correct answer is:
Concentrated sulfuric acid

Solution:
Concentrated sulfuric acid is not a component of Lucas reagent. Lucas reagent primarily consists of zinc chloride dissolved in water.

Topic: Chemistry, Alcohols Phenols and Ethers, NEET
Which of the following is NOT a component of nucleic acids?

Options:
A Nucleotides
B Amino acids
C Phosphate groups
D Sugar molecules

The correct answer is:
Amino acids

Solution:
Amino acids are the building blocks of proteins, not nucleic acids.

Topic: Chemistry, Biomolecules, NEET
Which of the following is not a component of saliva?

Options:
A Saliva contains electrolytes Na+, K+, Cl- and HCO3- ions.
B α Ptyalin salivary amylase
C Mucin, lysozyme and thiocyanate ions
D Antibody IgM

The correct answer is:
Antibody IgM

Solution:
Saliva is a watery substance located in the mouths of animals, secreted by the salivary glands. Human saliva is 99.5% water, while the other 0.5% consists of electrolytes, mucus, glycoproteins, enzymes, and antibacterial compounds such as secretory IgA and lysozyme. The enzymes found in saliva are essential in beginning the process of digestion of dietary starches and fats. These enzymes also play a role in breaking down food particles entrapped within dental crevices, protecting teeth from bacterial decay. Antibodies IgM is not present in saliva.

Topic: Biology, Digestion and Absorption, NEET
Which of the following is not a connection between the plasma membrane of adjacent cells?

Options:
A Desmosomes
B Tight junction
C Gap junction
D Transverse junction

The correct answer is:
Transverse junction

Solution:
Desmosomes are intercellular junctions which provide strong bond between cells. They join intermediate filaments of neighbouring cells. Tight junctions between cells are nothing but connected areas of the plasma membrane that stitch cells together. Gap junctions directly connect the cytoplasm of two cells allowing molecules and ions to directly pass through.

Topic: Biology, Structural Organisation in Animals, NEET
Which of the following is not a connective tissue?

Options:
A Adipose tissue
B Cartilage
C Neuroglia
D Blood

The correct answer is:
Neuroglia

Solution:
Examples of connective tissue are blood, adipose tissue, cartilage, bone and lymph.

The neuroglia refers to the collection of non-neuronal cells found in the CNS. They are not an example of connective tissue.

Topic: Biology, Structural Organisation in Animals, NEET, NEET 2022 (Phase 1)
Which of the following is not a consequence of using ethephon?

Options:
A Thinning of cotton
B Hastened fruit ripening in tomatoes
C Accelerated abscission
D Promotion of male flowers in cucumbers

The correct answer is:
Promotion of male flowers in cucumbers

Solution:
The most widely used compound as source of ethylene is ethephon. Ethephon in an aqueous solution is readily absorbed and transported within the plant and releases ethylene slowly. Ethephon hastens fruit ripening in tomatoes and apples and accelerates abscission in flowers and fruits (thinning of cotton, cherry, walnut). It promotes female flowers in cucumbers thereby increasing the yield.

Topic: Biology, Plant - Growth and Development, NEET
Which of the following is not a correct dominant-recessive trait pair of Pisum sativum?

Options:
A Axial-terminal flower position, tall-dwarf stem height
B Yellow-green pod colour, round-wrinkled seed shape
C Full-constricted pod shape, Yellow-green seed colour
D Violet-white flower colour, Inflated-constricted pod shape

The correct answer is:
Yellow-green pod colour, round-wrinkled seed shape

Solution:
During his hybridization experiments on pea (Pisum sativum) Mendel used seven contrasting characters which were present on different chromosomes.

S.No.	Characters	Dominant/Recessive

(i)	Stem height	Tall/Dwarf

(ii)	Flower colour	Violet/White

(iii)	Flower position	Axial/Terminal

(iv)	Pod shape	Inflated (full)/constricted

(v)	Pod colour	Green/Yellow

(vi)	Seed shape	Round/Wrinkled

(vii)	Seed colour	Yellow/Green

Topic: Biology, Principles of Inheritance and Variation, NEET
Which of the following is not a correct statement?

Options:
A Multiple bonds are always shorter than corresponding single bonds
B The electron deficient molecules can act as Lewis acids
C The canonical structures have no real existence
D Every $\mathrm{AB}_5$ molecule does in fact have square pyramidal structure

The correct answer is:
Every $\mathrm{AB}_5$ molecule does in fact have square pyramidal structure

Solution:
The $\mathrm{AB}_5$ molecule does not have a square pyramidal structure but has a trigonal bipyramidal structure because of $s p^3 d$ hybridisation.
Related Theory
Benzene exist in canonical structure

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET, NEET 2006
Which of the following is not a desirable feature of a cloning vector?

Options:
A Presence of a marker gene
B Presence of single restriction enzyme site
C Presence of two or more recognition sites
D Presence of origin of replication

The correct answer is:
Presence of two or more recognition sites

Solution:
The term cloning vectors refer to the DNA molecules that act as transporting vehicle which carries foreign DNA into a host cell for cloning and expression.

An ideal cloning vector should have the desired characteristics like small size (less than 10 kb), polylinker sequence, presence of selectable marker genes, and 'Ori' sequence.

The 'Ori' sequence, stands for origin of replication, is responsible for the initiation of replication process.

In order to link the foreign DNA, the vector needs to have very few, preferably single, recognition sites for the commonly used restriction enzymes. Presence of more than one recognition sites within the vector will generate several fragments, which will complicate the gene cloning process.

Topic: Biology, Biotechnology - Principles and Processes, NEET, NEET 2022 (Phase 1)
Which of the following is not a ductless gland ?

Options:
A Islet of langerhans
B Pituitary gland
C Thyroid gland
D Salivary gland

The correct answer is:
Salivary gland

Solution:
Exocrine glands or duct glands are glands that secrete substances onto an epithelial surface through a duct. Examples of exocrine glands include sweat, salivary, mammary, ceruminous, lacrimal, sebaceous, prostate and mucous.

Topic: Biology, Chemical Coordination and Integration, NEET
Which of the following is not a factor influencing the rate of dehydrohalogenation reaction?

Options:
A Nature of the alkyl group
B Nature of the halogen atom
C Temperature
D Pressure

The correct answer is:
Pressure

Solution:
Pressure is not a factor that significantly influences the rate of dehydrohalogenation reactions. The rate is primarily determined by the nature of the alkyl group and the halogen atom, as well as the temperature.

Topic: Chemistry, Hydrocarbons, NEET
Which of the following is not a factor that influences polygenic inheritance?

Options:
A The number of genes involved
B The environment
C The contribution of each allele
D The presence of dominant alleles

The correct answer is:
The presence of dominant alleles

Solution:
The presence of dominant alleles is not a factor that influences polygenic inheritance, as both dominant and recessive alleles contribute to the trait.

Topic: Biology, Principles of Inheritance and Variation, NEET
Which of the following is not a feature of active transport of solutes in plants?

Options:
A Occurs against concentration gradient
B Non-selective
C Occurs through membranes
D Requires ATP

The correct answer is:
Non-selective

Solution:
Option (b) is not a feature of active transport of solutes in plants. Active transport of solutes in plants is carried out by membrane proteins. Like enzymes, the carrier proteins are very specific (i.e. selective) in what they carry across the membranes. Active transport uses energy (ATP) to pump molecules against a concentration gradient.

Topic: Biology, Transport in Plants, NEET, NEET 2019 (Odisha)
Which of the following is not a feature of the cortical nephron?

Options:
A Vasa recta are absent
B Shorter loop of Henle
C Fewer in number
D Slower rate of filtration

The correct answer is:
Fewer in number

Solution:
Cortical nephrons	Juxta medullary nephrons

The loop of Henle is too short and extends very little into the medulla.	The loop of Henle is very long and runs deep into the medulla.

Vasa recta are absent or highly reduced.	Vasa recta are well developed.

Example: Majority of nephrons.	Example: Some of the nephrons.

Topic: Biology, Excretory Products and their Elimination, NEET
Which of the following is not a feature of the plasmids?

Options:
A Independent replication
B Circular structure
C Transferable
D Single-stranded

The correct answer is:
Single-stranded

Solution:
Plasmids are extra chromosomal, double-stranded circular DNA.
They are used as vectors in genetic engineering.

In nature, plasmids provide one or more functional benefits to the host, such as resistance to antibiotics, degradative functions, and virulence.

Topic: Biology, Biotechnology - Principles and Processes, NEET, NEET 2016 (Phase 1)
Which of the following is not a feature of typical r-selected species?

Options:
A On-time big bang reproduction
B Large number of offsprings in a single mating
C Small-sized offsprings
D Long life span

The correct answer is:
Long life span

Solution:
r-selected species are small-sized organism which produces a large number of offsprings in a single mating. Their habitat is unstable but population size not effected by population density. Their life span is small. Organism like ants, bacteria, insects are an example of r- selected species.

Topic: Biology, Organisms and Populations, NEET
Which of the following is not a flightless bird?

Options:
A Ostrich
B Emu
C Passer
D Rhea

The correct answer is:
Passer

Solution:
Examples of Class Aves:
Flying birds - Passer (Sparrow), Corvus (Crow), Psittacula (Parrot), Columba (Pigeon), Pavo (Peacock National bird), Neophron (Vulture).
Flightless birds (Ratitae group) - Struthio (Ostrich), Rhea, Emu.
Others - Aptenodytes (Penguin).

Topic: Biology, Animal Kingdom, NEET
Which of the following is not a function of angiotensin II?

Options:
A Vasoconstriction
B Increases the glomerular blood pressure
C Decreases the GFR
D Increases the blood pressure

The correct answer is:
Decreases the GFR

Solution:
Angiotensin, specifically angiotensin II, binds to many receptors in the body to affect several systems. It can increase blood pressure by constricting the blood vessels.
In the adrenal glands, angiotensin stimulates aldosterone production. This hormone causes the body to retain sodium, causing increased water re-absorption to increase the volume of blood. It increases GFR.

Topic: Biology, Excretory Products and their Elimination, NEET
Which of the following is not a function of cytokinin?

Options:
A Delay in senescence
B Breaking seed dormancy
C Promoting bud dormancy
D Counteracting to apical dominance

The correct answer is:
Promoting bud dormancy

Solution:
It is a plant hormone that promotes cell division in plant roots and shoots.They are also involved in cell growth and differentiation. They also delay senescence in plants. It is also used for breaking the seed dormancy like in lettuce and tobacco etc. and induce seed germination. Abscisic acid promotes bud dormancy, not cytokinin.

Topic: Biology, Plant - Growth and Development, NEET
Which of the following is not a function of membranous extensions like vesicles and tubules?

Options:
A Cell wall formation
B Increase the surface area of the plasma membrane
C Helps in protein synthesis
D Helps in respiration

The correct answer is:
Helps in protein synthesis

Solution:
A special membranous structure is the mesosome which is formed by the extensions of plasma membrane into the cell. These extensions are in the form of vesicles, tubules and lamellae. They help in cell wall formation, DNA replication and distribution to daughter cells. They also help in respiration, secretion processes, to increase the surface area of the plasma membrane and enzymatic content.

Topic: Biology, Cell - The Unit of Life, NEET
Which of the following is not a function of the skeletal system?

Options:
A Storage of minerals
B Production of body heat
C Locomotion
D Production of erythrocytes

The correct answer is:
Production of body heat

Solution:
The primary functions of the skeletal system are to support, help in locomotion, protection, production of blood cells by the bone marrow, storage of minerals etc. Production of body heat is not the function of the skeletal system. It is the function of adipose tissue.

Topic: Biology, Locomotion and Movement, NEET, NEET 2015 (Phase 2)
Which of the following is not a function of the skeletal system?

Options:
A Storage of minerals
B Production of body heat
C Locomotion
D Production of erythrocytes

The correct answer is:
Production of body heat

Solution:
Production of body heat is the function of adipose tissue.

Topic: Biology, Locomotion and Movement, NEET
Which of the following is NOT a half reaction?

Options:
A 2 Na(s) → 2 Na+(g) + 2e-
B Cl2(g) + 2e- → 2 Cl-(g)
C 4 Na(s) + O2(g) → 2 Na2O(s)
D 2NaCl(s) → 2Na+(g) + 2Cl-(g)

The correct answer is:
4 Na(s) + O2(g) → 2 Na2O(s)

Solution:
The passage states that half reactions explicitly show the involvement of electrons, and option C is not a half reaction.

Topic: Chemistry, Redox Reactions, NEET
Which of the following is not a helminth?

Options:
A Trypanosoma
B Taenia
C Ascaris
D Wuchereria

The correct answer is:
Trypanosoma

Solution:
Trypanosoma is a flagellated protozoan, which is parasitic in the gut of the flies and in the blood of vertebrates. They cause important disease in hoses and cattle's and African sleeping sickness in humans.

Topic: Biology, Human Health and Diseases, NEET
Which of the following is not a hereditary disease?

Options:
A cystic fibrosis
B thalassemia
C haemophilia
D cretinism.

The correct answer is:
cretinism.

Solution:
Cretinism refers to severe hypothyroidism in an infant or child as a result of maternal iodine deficiency. Cystic fibrosis is an inherited disorder that causes severe damage to the lungs, digestive system and other organs in the body. Thalassemia is an genetic disease caused by mutations in the DNA of RBCs and hampers the haemoglobin production in the body. Haemophilia is a genetic condition, that is characterized by a deficiency in blood clotting.
Related Theory
There are two major kinds of haemophilia: hemophilia A, which is a factor VIII deficiency;
and hemophilia $B$, which is a factor $I X$ deficiency. People with hemophilia may bruise and bleed easily, and they may bleed a lot or for a long time after an injury.

Topic: Biology, Principles of Inheritance and Variation, NEET, NEET 2005