datavorous/entrance-exam-dataset huggingface dataset:
What is the main goal of conventional breeding?

Options:
A To create new genetic variations through changes in the base sequence.
B To identify and utilize disease resistance genes in crops.
C To increase the yield of cultivated plant species.
D To reduce the dependence on the use of fungicides and bacteriocides.

The correct answer is:
To identify and utilize disease resistance genes in crops.

Solution:
Conventional breeding is constrained by the availability of limited number of disease resistance genes that are present and identified in various crop varieties or wild relatives. The main goal of conventional breeding is to identify and utilize disease resistance genes in crops.

Topic: Biology, Strategies for Enhancement in Food Production, NEET
What is the main goal of creating a proton gradient in photosynthesis?

Options:
A To produce ATP
B To produce NADPH
C To produce CO₂
D To produce sugars

The correct answer is:
To produce ATP

Solution:
The proton gradient is important because it is the breakdown of this gradient that leads to the synthesis of ATP.

Topic: Biology, Photosynthesis in Higher Plants, NEET
What is the main goal of genetic engineering?

Options:
A To introduce variation into the target organism
B To preserve the genetic information of the target organism
C To isolate and introduce only desirable genes without undesirable genes
D To include and multiply undesirable genes

The correct answer is:
To isolate and introduce only desirable genes without undesirable genes

Solution:
The goal of genetic engineering is to overcome the limitation of traditional hybridization procedures by using techniques such as creation of recombinant DNA, gene cloning and gene transfer to isolate and introduce only one or a set of desirable genes without introducing undesirable genes into the target organism.

Topic: Biology, Biotechnology - Principles and Processes, NEET
What is the main goal of the Reproductive and Child Health Care programs?

Options:
A To reduce maternal and infant mortality rates
B To provide medical facilities and care to the problems related to reproduction
C To assist infertile couples
D All of the above

The correct answer is:
To provide medical facilities and care to the problems related to reproduction

Solution:
Providing medical facilities and care to the problems like menstrual irregularities, pregnancy related aspects, delivery, medical termination of pregnancy, STIs, birth control, infertility, post natal child and maternal management is another important aspect of the Reproductive and Child Health Care programs.

Topic: Biology, Reproductive Health, NEET
What is the main hormone produced by Leydig cells in male individuals?

Options:
A Progesterone
B Testosterone
C Estrogen
D Insulin

The correct answer is:
Testosterone

Solution:
The Leydig cells or interstitial cells, which are present in the intertubular spaces of testis, produce a group of hormones- testosterone.

Topic: Biology, Chemical Coordination and Integration, NEET
What is the main idea behind "Joint Forest Management Concept" introduced by the Government of India?

Options:

None

Solution:
The joint forest management concept introduced by the Government of India was the idea of involving the local communities in the conservation of forest.
This concept was adopted considering the extraordinary courage and dedication the local people displayed in protecting the wildlife through the movements like Bishnoi's movement in Jodhpur and Chipko Movement in Garhwal Himalavas.

Topic: Biology, Environmental Issues
What is the main impact of soil salinity on agriculture?

Options:
A Improved crop growth
B Soil and crop damage
C Increased fertility of soil
D Reduced waterlogging in soil

The correct answer is:
Soil and crop damage

Solution:
Increased salt content in the soil due to waterlogging and poor irrigation practices is inimical to the growth of crops and causes damage to agriculture.

Topic: Biology, Environmental Issues, NEET
What is the main industrial application of borax and boric acid?

Options:
A Making heat-resistant glasses
B Producing earthenware
C Soldering metals
D Manufacturing medicinal soaps

The correct answer is:
Making heat-resistant glasses

Solution:
The main industrial application of borax and boric acid is in the manufacture of heat resistant glasses (e.g., Pyrex).

Topic: Chemistry, p Block Elements (Group 13 & 14), NEET
What is the main interaction of cocaine with the human body?

Options:
A Interferes with transport of the neuro-transmitter dopamine
B Interacts with cannabinoid receptors in the brain
C Interferes with the transport of the neuro-transmitter serotonin
D Interacts with opioid receptors in the central nervous system and gastrointestinal tract

The correct answer is:
Interferes with transport of the neuro-transmitter dopamine

Solution:
Coca Alkaloid or cocaine interferes with the transport of the neuro-transmitter dopamine.

Topic: Biology, Human Health and Diseases, NEET
What is the main issue with using wild relatives of different cultivated species of plants for breeding purposes?

Options:
A The wild relatives have low yield.
B The wild relatives have disease resistance genes.
C The wild relatives have desirable characters.
D The wild relatives have high yield.

The correct answer is:
The wild relatives have low yield.

Solution:
Several wild relatives of different cultivated species of plants have been shown to have certain resistant characters but have very low yield. This is the main issue with using wild relatives for breeding purposes.

Topic: Biology, Strategies for Enhancement in Food Production, NEET
What is the main limitation of using average rate to predict the rate of a reaction at a particular instant?

Options:
A Average rate depends on the concentration of reactants.
B Average rate is difficult to calculate.
C Average rate is constant for a specific time interval.
D Average rate is not affected by time.

The correct answer is:
Average rate is constant for a specific time interval.

Solution:
The average rate cannot be used to predict the rate of a reaction at a particular instant because it remains constant for the time interval for which it is calculated.

Topic: Chemistry, Chemical Kinetics, NEET
What is the main lymphoid organ in the human body?

Options:
A Spleen
B Lymph nodes
C Bone marrow
D Thymus

The correct answer is:
Bone marrow

Solution:
The bone marrow is the main lymphoid organ in the human body where all blood cells including lymphocytes are produced.

Topic: Biology, Human Health and Diseases, NEET
What is the main mechanism for the exchange of O₂ and CO₂ in the body?

Options:
A Transport by blood vessels
B Active transport by specialized cells
C Diffusion
D Facilitated diffusion

The correct answer is:
Diffusion

Solution:
Exchange of O₂ and CO₂ at the alveoli and tissues occur by diffusion. Rate of diffusion is dependent on the partial pressure gradients of O₂ (pO₂) and CO₂ (pCO₂), their solubility as well as the thickness of the diffusion surface.

Topic: Biology, Breathing and Exchange of Gases, NEET
What is the main method of asexual reproduction in green algae?

Options:
A Flagellated zoospores
B Binary fission
C Budding
D Sexual reproduction

The correct answer is:
Flagellated zoospores

Solution:
Green algae reproduce asexually by flagellated zoospores produced in zoosporangia.

Topic: Biology, Plant Kingdom, NEET
What is the main method of reproduction in algae?

Options:
A Asexual reproduction
B Sexual reproduction
C Vegetative reproduction
D All of the above

The correct answer is:
All of the above

Solution:
Algae reproduce by a combination of methods, including vegetative reproduction through fragmentation, asexual reproduction through the production of different types of spores, and sexual reproduction through the fusion of gametes.

Topic: Biology, Plant Kingdom, NEET
What is the main method of sexual reproduction in green algae?

Options:
A Isogamous
B Anisogamous
C Oogamous
D All of the above

The correct answer is:
All of the above

Solution:
Green algae have a considerable variation in the type and formation of sex cells and can reproduce sexually through isogamous, anisogamous, or oogamous methods.

Topic: Biology, Plant Kingdom, NEET
What is the main method of transferring resistance genes in crops?

Options:
A Genetic engineering
B Hybridisation
C Fertilization
D Pesticide application

The correct answer is:
Hybridisation

Solution:
The transfer of resistance genes is achieved by sexual hybridisation between the target and the source plant followed by selection.

Topic: Biology, Strategies for Enhancement in Food Production, NEET
What is the main method of vegetative reproduction in green algae?

Options:
A Fragmentation
B Spore formation
C Vegetative budding
D Hybridization

The correct answer is:
Fragmentation

Solution:
Green algae reproduce vegetatively by fragmentation or by formation of different types of spores.

Topic: Biology, Plant Kingdom, NEET
What is the main mineralocorticoid in our body?

Options:
A Cortisol
B Adrenaline
C Aldosterone
D Thymosin

The correct answer is:
Aldosterone

Solution:
Corticoids, which regulate the balance of water and electrolytes in our body are called mineralocorticoids. Aldosterone is the main mineralocorticoid in our body.

Topic: Biology, Chemical Coordination and Integration, NEET
What is the main mode of transport for mineral ions in a plant?

Options:
A Active uptake
B Passive uptake
C Transpiration stream
D Diffusion

The correct answer is:
Transpiration stream

Solution:
After reaching the xylem through active or passive uptake, or a combination of the two, the further transport of the mineral ions to all parts of the plant is through the transpiration stream. The xylem exudates analysis also shows that the transport of some elements, like nitrogen, is carried in the organic form, while others like phosphorus and sulfur are carried in inorganic form.

Topic: Biology, Transport in Plants, NEET
What is the main objective of prevention of AIDS?

Options:
A Curing AIDS
B Reducing the spread of AIDS
C Ignoring the presence of AIDS
D Increasing the spread of AIDS

The correct answer is:
Reducing the spread of AIDS

Solution:
The main objective of prevention of AIDS is to reduce the spread of the disease as there is no cure for it.

Topic: Biology, Human Health and Diseases, NEET
What is the main objective of the experiment described in the paragraph?

Options:
A To test the presence of starch in a leaf
B To understand the effect of light on photosynthesis
C To understand the role of CO₂ in photosynthesis
D To understand the role of KOH in photosynthesis

The correct answer is:
To understand the role of CO₂ in photosynthesis

Solution:
The objective of the experiment described in the paragraph is to understand the role of CO₂ in photosynthesis. This is concluded from the observation that the portion of the leaf exposed to air tested positive for starch while the portion that was in the test tube with KOH, which absorbs CO₂, tested negative.

Topic: Biology, Photosynthesis in Higher Plants, NEET
What is the main objective of the Ganga Action Plan and Yamuna Action Plan initiated by the Ministry of Environment and Forests?

Options:
A To reduce pollution
B To increase water-borne diseases
C To increase urbanization
D To increase the number of sewage treatment plants

The correct answer is:
To reduce pollution

Solution:
The main objective of the Ganga Action Plan and Yamuna Action Plan is to save these major rivers from pollution by building a large number of sewage treatment plants so that only treated sewage may be discharged in the rivers.

Topic: Biology, Microbes in Human Welfare, NEET
What is the main organ that gets damaged due to the chronic use of drugs and alcohol?

Options:
A Liver
B Nervous system
C Heart
D Kidney

The correct answer is:
Nervous system

Solution:
The chronic use of drugs and alcohol damages the nervous system and liver.

Topic: Biology, Human Health and Diseases, NEET
What is the main parameter that affects the distribution of molecular speeds?

Options:
A Pressure
B Volume
C Molecular weight
D Temperature

The correct answer is:
Temperature

Solution:
Temperature is the main parameter that affects the distribution of molecular speeds in a gas.

Topic: Chemistry, States of Matter, NEET
What is the main pathway for water flow in the roots of plants?

Options:
A Apoplast
B Endodermis
C Cortical cells
D Suberised matrix

The correct answer is:
Apoplast

Solution:
Most of the water flow in the roots occurs via the apoplast.

Topic: Biology, Transport in Plants, NEET
What is the main physical barrier that prevents entry of microorganisms?

Options:
A Mucus coating
B Acid in the stomach
C Skin
D Tears from eyes

The correct answer is:
Skin

Solution:
The skin is the main physical barrier that prevents the entry of microorganisms into the body.

Topic: Biology, Human Health and Diseases, NEET
What is the main pigment found in algae?

Options:
A Chlorophyll
B Carotene
C Phycocyanin
D Phycoerythrin

The correct answer is:
Chlorophyll

Solution:
Algae are chlorophyll-bearing organisms, meaning they contain chlorophyll as their main pigment, which allows them to perform photosynthesis.

Topic: Biology, Plant Kingdom, NEET
What is the main pigment found in the body of members of Rhodophyceae?

Options:
A Chlorophyll
B Carotenoids
C Phycobiliproteins
D R-phycoerythrin

The correct answer is:
R-phycoerythrin

Solution:
The members of Rhodophyceae are commonly called red algae because of the predominance of the red pigment, r-phycoerythrin in their body.

Topic: Biology, Plant Kingdom, NEET
What is the main pigment responsible for trapping light in photosynthesis?

Options:
A Chlorophyll a
B Chlorophyll b
C Xanthophylls
D Carotenoids

The correct answer is:
Chlorophyll a

Solution:
Chlorophyll a is the major pigment responsible for trapping light in photosynthesis.

Topic: Biology, Photosynthesis in Higher Plants, NEET
What is the main plant body in pteridophytes?

Options:
A Gametophyte
B sporophyte
C Rhizome
D Strobili

The correct answer is:
sporophyte

Solution:
The main plant body in pteridophytes is the sporophyte, which is differentiated into true root, stem and leaves.

Topic: Biology, Plant Kingdom, NEET
What is the main plant body of the bryophyte?

Options:
A A sporophyte
B A gametophyte
C A rhizoid
D A thallus

The correct answer is:
A gametophyte

Solution:
The main plant body of the bryophyte is haploid and produces gametes, hence is called a gametophyte.

Topic: Biology, Plant Kingdom, NEET
What is the main principle of cell theory?

Options:
A All living organisms are composed of cells and products of cells
B All cells arise from the fusion of different cells
C All cells are created from non-living matter
D All cells arise from pre-existing cells

The correct answer is:
All cells arise from pre-existing cells

Solution:
The main principle of the cell theory is that all cells arise from pre-existing cells, also known as Omnis cellula-e cellula. This principle was first explained by Rudolf Virchow.

Topic: Biology, Cell - The Unit of Life, NEET
What is the main principle of integrated organic farming?

Options:
A Using waste products from one process as nutrients for other processes
B Using chemical fertilisers for crops
C Using waste products as a natural fertiliser
D None of the above

The correct answer is:
Using waste products from one process as nutrients for other processes

Solution:
Integrated organic farming is a cyclical, zero-waste pr ocedure where waste products from one process are cycled in as nutrients for other pr ocesses.

Topic: Biology, Environmental Issues, NEET
What is the main principle of the Law of Multiple Proportions?

Options:
A The masses of elements in compounds are always the same.
B The masses of elements in compounds vary randomly.
C The masses of elements in compounds are in simple whole number ratios.
D The masses of elements in compounds have no specific relationship.

The correct answer is:
The masses of elements in compounds are in simple whole number ratios.

Solution:
According to the Law of Multiple Proportions, the masses of one element that combine with a fixed mass of the other element are in the ratio of small whole numbers.

Topic: Chemistry, Some Basic Concepts of Chemistry, NEET
What is the main problem associated with the use of detergents?

Options:
A Excessive foaming
B Slow degradation and accumulation
C High cost
D Toxicity to aquatic life

The correct answer is:
Slow degradation and accumulation

Solution:
If detergents have highly branched hydrocarbon chains, they are not easily degraded by bacteria, leading to their slow degradation and accumulation.

Topic: Chemistry, Chemistry in Everyday Life, NEET
What is the main process of gas exchange in the body?

Options:
A Transport by blood vessels
B Simple diffusion
C Active transport
D Facilitated diffusion

The correct answer is:
Simple diffusion

Solution:
The exchange of gases between the alveoli, blood, and tissues occur mainly by simple diffusion.

Topic: Biology, Breathing and Exchange of Gases, NEET
What is the main process that enables breathing?

Options:
A Movement of air into and out of the lungs
B Pressure gradient between the lungs and the atmosphere
C Negative pressure in the lungs with respect to atmospheric pressure
D Intra-pulmonary pressure higher than atmospheric pressure

The correct answer is:
Movement of air into and out of the lungs

Solution:
Breathing involves two stages: inspiration and expiration, which is enabled by the movement of air into and out of the lungs.

Topic: Biology, Breathing and Exchange of Gases, NEET
What is the main process that occurs during cell division?

Options:
A DNA replication
B Cell growth
C Cell division
D All of the above

The correct answer is:
All of the above

Solution:
During the division of a cell, DNA replication and cell growth also take place.

Topic: Biology, Cell Cycle and Cell Division, NEET
What is the main product formed in the disproportionation of sulfur (S8) in an alkaline medium?

Options:
A Sulfur dioxide (SO2)
B Hydrogen sulfide (H2S)
C Sulfite ions (SO32-)
D Sulfide ions (S2-)

The correct answer is:
Sulfite ions (SO32-)

Solution:
The main product formed in the disproportionation of sulfur (S8) in an alkaline medium, as described in the passage, is sulfite ions (SO32-).

Topic: Chemistry, Redox Reactions, NEET
What is the main product formed when alcohols undergo dehydration?

Options:
A Alcohol
B Aldehyde
C Ketone
D Alkene

The correct answer is:
Alkene

Solution:
The main product of the dehydration of alcohols is an alkene.

Topic: Chemistry, Alcohols Phenols and Ethers, NEET
What is the main product of the oxidation of phenol with ozone (O3)?

Options:
A Benzoic acid
B Benzoquinone
C Phenylamine
D Benzaldehyde

The correct answer is:
Benzoquinone

Solution:
The oxidation of phenol with ozone produces benzoquinone.

Topic: Chemistry, Alcohols Phenols and Ethers, NEET
What is the main product produced by honeybees?

Options:
A Beeswax
B Honey
C Silk
D Pollen

The correct answer is:
Honey

Solution:
Honey is the main product produced by honeybees and it is a food of high nutritive value.

Topic: Biology, Strategies for Enhancement in Food Production, NEET
What is the main product when a tertiary alkyl halide reacts with CH3ONa in the Williamson ether synthesis?

Options:
A Ester
B Alcohol
C Alkene
D Ether

The correct answer is:
Alkene

Solution:
When a tertiary alkyl halide reacts with CH3ONa in the Williamson ether synthesis, the main product is an alkene due to elimination reactions.

Topic: Chemistry, Alcohols Phenols and Ethers, NEET
What is the main product when a tertiary alkyl halide reacts with CH3ONa in the Williamson ether synthesis?

Options:
A Ether
B Alkene
C Alcohol
D Alkyl halide

The correct answer is:
Alkene

Solution:
When a tertiary alkyl halide reacts with CH3ONa in the Williamson ether synthesis, the main product is an alkene due to elimination reactions.

Topic: Chemistry, Alcohols Phenols and Ethers, NEET
What is the main product when acetone reacts with iodine in the presence of a base?

Options:
A Acetic acid
B Iodoform
C Chloroform
D Methanol

The correct answer is:
Iodoform

Solution:
Iodoform
Explanation: Acetone reacts with iodine in the presence of a base to form iodoform $\left(\mathrm{CHI}_3\right)$ and a carboxylate salt. This is known as the iodoform test.

Topic: Chemistry, Alcohols Phenols and Ethers, JEE Main
What is the main purpose of a test cross?

Options:
A Find the number of alleles of a gene
B Determine two species will breed successfully
C Determine the genotype of a plant in F2 generation.
D Predict whether two traits are linked

The correct answer is:
Determine the genotype of a plant in F2 generation.

Solution:
Test crosses are used to test an individual's genotype by crossing it with an individual of a known genotype. Individuals that show the recessive phenotype are known to have a homozygous recessive genotype. Individuals that show the dominant phenotype, however, may either be homozygous dominant or heterozygous.

Topic: Biology, Principles of Inheritance and Variation, NEET
What is the main purpose of adding lime in Clark's method for removing temporary hardness?

Options:
A To increase the temperature of water
B To improve the taste of water
C To precipitate calcium carbonate and magnesium hydroxide
D To enhance the color of water

The correct answer is:
To precipitate calcium carbonate and magnesium hydroxide

Solution:
In Clark's method, lime is added to hard water to precipitate calcium carbonate and magnesium hydroxide, which can be filtered off to remove temporary hardness.

Topic: Chemistry, Hydrogen, NEET
What is the main purpose of antibiotics?

Options:
A To treat diseases
B To kill other microbes
C To improve the capacity to treat diseases
D To produce commercial and industrial chemicals

The correct answer is:
To improve the capacity to treat diseases

Solution:
Antibiotics are used to improve our capacity to treat deadly diseases by killing or slowing the growth of disease-causing microbes.

Topic: Biology, Microbes in Human Welfare, NEET
What is the main purpose of biofortification?

Options:
A To increase the lifespan of people
B To reduce the risk of disease
C To reduce mental abilities
D All of the above

The correct answer is:
To reduce the risk of disease

Solution:
Biofortification is the most practical means to improve public health by breeding crops with higher levels of vitamins and minerals, or higher protein and healthier fats. It reduces the risk of disease caused by essential micronutrient, protein and vitamin deficiencies or ‘hidden hunger’.

Topic: Biology, Strategies for Enhancement in Food Production, NEET
What is the main purpose of bioprocess engineering?

Options:
A Altering the chemistry of genetic material
B . Maintaining a sterile environment for microbe growth
C Sequencing DNA and RNA
D Mapping genomes

The correct answer is:
. Maintaining a sterile environment for microbe growth

Solution:
Bioprocess engineering is concerned with maintaining a sterile (microbial contamination-free) environment in chemical engineering processes to enable growth of only the desired microbe/eukaryotic cell in large quantities for the manufacture of biotechnological products like antibiotics, vaccines, enzymes, etc.

Topic: Biology, Biotechnology - Principles and Processes, NEET
What is the main purpose of Biotechnology?

Options:
A To produce useful products from microbes, plants, and animals
B To engineer novel capabilities in plants and animals
C To study human diseases
D To manipulate genetic material

The correct answer is:
To produce useful products from microbes, plants, and animals

Solution:
The main purpose of Biotechnology is to use the metabolic machinery of microbes, plants, and animals to produce useful products.

Topic: Biology, Biotechnology and Its Applications, NEET