datavorous/entrance-exam-dataset huggingface dataset:
What is the main advantage of using PCR in DNA fingerprinting?

Options:
A It allows for the detection of VNTRs with greater sensitivity.
B It enables the isolation of DNA from a wider variety of sources.
C It reduces the number of steps required for DNA fingerprinting.
D It eliminates the need for the use of a VNTR probe.

The correct answer is:
It allows for the detection of VNTRs with greater sensitivity.

Solution:
The paragraph mentions that the sensitivity of the technique has been increased by the use of PCR, which allows DNA fingerprinting to be performed with DNA from a single cell.

Topic: Biology, Molecular Basis of Inheritance, NEET
What is the main advantage of using transgenic animals for disease study?

Options:
A To study animal anatomy
B To study animal behavior
C To provide a model for human diseases
D To study animal fur

The correct answer is:
To provide a model for human diseases

Solution:
Transgenic animals are designed to increase our understanding of how genes contribute to the development of diseases and serve as models for human diseases. This is the main advantage of using transgenic animals for disease study as it helps in the investigation of new treatments for diseases.

Topic: Biology, Biotechnology and Its Applications, NEET
What is the main advantage of using transgenic animals in vaccine safety testing?

Options:
A To study the regulation of genes
B To make medicines cheaper
C To determine the effects of toxic substances
D To replace the use of monkeys in vaccine safety testing

The correct answer is:
To replace the use of monkeys in vaccine safety testing

Solution:
Transgenic mice are being developed to test the safety of vaccines, and if successful and found to be reliable, they could replace the use of monkeys to test the safety of batches of the vaccine.

Topic: Biology, Biotechnology and Its Applications, NEET
What is the main advantage of vectors used in genetic engineering?

Options:
A They help in selection of recombinants from non-recombinants
B They make it difficult to link foreign DNA
C They reduce the copy number of bacteriophage or plasmid genome
D They do not have any advantage

The correct answer is:
They help in selection of recombinants from non-recombinants

Solution:
Vectors used in genetic engineering are engineered in such a way that they help in easy linking of foreign DNA and selection of recombinants from non-recombinants.

Topic: Biology, Biotechnology - Principles and Processes, NEET
What is the main aim of animal breeding in poultry farming?

Options:
A Decreasing the yield of animals
B Decreasing the desirable qualities of the produce
C Improving the yield of animals
D Improving the undesirable qualities of the produce

The correct answer is:
Improving the yield of animals

Solution:
The main aim of animal breeding in poultry farming is to increase the yield of animals and improve the desirable qualities of the produce.

Topic: Biology, Strategies for Enhancement in Food Production, NEET
What is the main aim of animal husbandry practices?

Options:
A To reduce the quality and quantity of food from animals
B To increase the quality and quantity of food from animals
C To maintain the quality of food from animals
D To decrease the production of food from animals

The correct answer is:
To increase the quality and quantity of food from animals

Solution:
The ever-increasing demand of food from animals and animal products both in terms of quality and quantity has been met by good animal husbandry practices.

Topic: Biology, Strategies for Enhancement in Food Production, NEET
What is the main aim of animal husbandry?

Options:
A To increase the population of domestic animals
B To increase the production of animal food and products
C To increase the quality of animal food and products
D Both B) and C)

The correct answer is:
Both B) and C)

Solution:
The main aim of animal husbandry is to meet the ever-increasing demand of food from animals and animal products both in terms of quality and quantity.

Topic: Biology, Strategies for Enhancement in Food Production, NEET
What is the main amino acid from which the transfer of NH₂ takes place?

Options:
A Glutamic Acid
B Aspartic Acid
C Alanine
D Serine

The correct answer is:
Glutamic Acid

Solution:
The main amino acid from which the transfer of NH₂ takes place is glutamic acid.

Topic: Biology, Mineral Nutrition, NEET
What is the main application of auxins in horticulture and agriculture?

Options:
A To prevent the growth of lateral buds
B To promote abscission of mature leaves and fruits
C To initiate rooting in stem cuttings
D To promote flowering

The correct answer is:
To initiate rooting in stem cuttings

Solution:
Auxins help to initiate rooting in stem cuttings, an application widely used for plant propagation.

Topic: Biology, Plant - Growth and Development, NEET
What is the main approach of green chemistry in addressing environmental issues?

Options:
A Stopping the process of development
B Utilizing existing knowledge and principles of chemistry
C Increasing the use of fertilizers and pesticides
D Ignoring the adverse impact on the environment

The correct answer is:
Utilizing existing knowledge and principles of chemistry

Solution:
Green chemistry focuses on utilizing the existing knowledge and principles of chemistry and other sciences to reduce the adverse impact on the environment, rather than halting the development process.

Topic: Chemistry, Environmental Chemistry, NEET
What is the main arena of cellular activities in both plant and animal cells?

Options:
A Cell membrane
B Cell wall
C Nucleus
D Cytoplasm

The correct answer is:
Cytoplasm

Solution:
The cytoplasm is the semi-fluid matrix that occupies the volume of the cell and is the main arena of cellular activities in both plant and animal cells.

Topic: Biology, Cell - The Unit of Life, NEET
What is the main benefit of C₄ plants compared to C₃ plants?

Options:
A They have a special type of leaf anatomy
B They tolerate higher temperatures
C They have greater productivity of biomass
D They are more resistant to disease

The correct answer is:
They have greater productivity of biomass

Solution:
C₄ plants have greater productivity of biomass compared to C₃ plants.

Topic: Biology, Photosynthesis in Higher Plants, NEET
What is the main benefit of using scientific names?

Options:
A Each organism has only one name
B Description of any organism is simplified
C They ensure that the name has not been used for any other known organism
D All of the above

The correct answer is:
All of the above

Solution:
Scientific names ensure that each organism has only one name, description of any organism should enable the people (in any part of the world) to arrive at the same name and also ensures that such a name has not been used for any other known organism.

Topic: Biology, The Living World, NEET
What is the main benefit of using the tumor inducing (Ti) plasmid of Agrobacterium tumifaciens as a cloning vector?

Options:
A It is no longer pathogenic to plants
B It is able to deliver genes of interest into humans
C It is still able to use the mechanisms of pathogens to deliver genes
D It is able to transform normal cells into cancerous cells

The correct answer is:
It is still able to use the mechanisms of pathogens to deliver genes

Solution:
The main benefit of using the tumor inducing (Ti) plasmid of Agrobacterium tumifaciens as a cloning vector is that it has been modified to be no longer pathogenic to plants, but it is still able to use the mechanisms of pathogens to deliver genes of interest.

Topic: Biology, Biotechnology - Principles and Processes, NEET
What is the main cause for the extinction of some species in tropical forest ?

Options:
A Deforestation
B Afforestation
C Pollution
D Soil erosin

The correct answer is:
Deforestation

Solution:
Deforestation is the depletion of forest resources. Its main cause is the explosion of human and livestock population with the increased demand of the basic needs. Ideally one third ( $33 \%$ ) of land of a country must be covered by forest. In India forest cover is only $19.43 \%$ out of which only $13 \%$ are thick forest. India is losing about 1.5 million hectare of forest covers each year. The major effect of deforestation is the loss of precious wild life, rare species of flora and fauna. Directly or indirectly, deforestation caused intensified soil erosion, accentuated flood, drought and the worst pollution.
Afforestation or reforestation is the only major way to conserve the natural resources and the previous rare species.

Topic: Biology, Biodiversity and its Conservation, JIPMER, JIPMER 2009
What is the main cause of amoebiasis (amoebic dysentery)?

Options:
A Entamoeba histolytica
B Ascaris
C Plasmodium falciparum
D Wuchereria bancrofti

The correct answer is:
Entamoeba histolytica

Solution:
Entamoeba histolytica is a protozoan parasite in the large intestine of human which causes amoebiasis (amoebic dysentery).

Topic: Biology, Human Health and Diseases, NEET
What is the main cause of cancer?

Options:
A Lack of proper nutrition
B Infection
C Breakdown of regulatory mechanisms
D Poor monitoring

The correct answer is:
Breakdown of regulatory mechanisms

Solution:
In cancer cells, there is a breakdown of the regulatory mechanisms that control cell growth and differentiation in our body. This is the main cause of cancer.

Topic: Biology, Human Health and Diseases, NEET
What is the main cause of concern among youth and adolescents?

Options:
A AIDS and cancer
B Drug and alcohol abuse
C Vector-borne diseases
D Psychological distress

The correct answer is:
Drug and alcohol abuse

Solution:
Drug and alcohol abuse among youth and adolescents is becoming another cause of concern.

Topic: Biology, Human Health and Diseases, NEET
What is the main cause of diamagnetism in substances?

Options:
A Presence of strong magnetic fields
B Presence of magnetic impurities
C Presence of unpaired electrons
D Presence of paired electrons

The correct answer is:
Presence of paired electrons

Solution:
Diamagnetism is mainly caused by the presence of paired electrons, which result in the cancellation of magnetic moments.

Topic: Chemistry, Solid State, NEET
What is the main cause of drug and alcohol abuse among adolescents?

Options:
A Curiosity and experimentation
B The desire to escape problems
C The perception that it is 'cool' or progressive
D All of the above

The correct answer is:
All of the above

Solution:
The first use of drugs or alcohol may be out of curiosity or experimentation, but later the child starts using these to escape facing problems. The perception among youth that it is 'cool' or progressive to smoke, use drugs or alcohol is also a major cause for youth to start these habits.

Topic: Biology, Human Health and Diseases, NEET
What is the main cause of environmental degradation and depletion of natural resources?

Options:
A Lack of development
B Increase in demand for food, water, home, electricity, roads, automobiles and other commodities
C Implementation of Environment Protection Act, 1986 Decrease in human population size
D None of the above

The correct answer is:
Increase in demand for food, water, home, electricity, roads, automobiles and other commodities

Solution:
The increase in demand for food, water, home, electricity, roads, automobiles and other commodities has exerted tremendous pressure on our natural resources and contributed to pollution of air, water, and soil.

Topic: Biology, Environmental Issues, NEET
What is the main cause of eutrophication in lakes?

Options:
A Overgrowth of Algae
B Depletion of dissolved oxygen
C Contamination by industrial and agricultural waste
D Destruction of fish populations

The correct answer is:
Contamination by industrial and agricultural waste

Solution:
During the past century, lakes in many parts of the world have been severely eutrophied due to contamination by sewage, industrial and agricultural waste, with the prime contaminants being nitrates and phosphates.

Topic: Biology, Environmental Issues, NEET
What is the main cause of global warming?

Options:
A Deforestation
B Overpopulation
C Increased greenhouse gases
D Improper energy usage

The correct answer is:
Increased greenhouse gases

Solution:
The main cause of global warming is the increase in the level of greenhouse gases which is leading to the heating of the Earth.

Topic: Biology, Environmental Issues, NEET
What is the main cause of habitat loss and fragmentation?

Options:
A Climate change
B Natural disasters
C Human activities
D Invasive species

The correct answer is:
Human activities

Solution:
Human activities, such as deforestation for agriculture and raising livestock, as well as habitat degradation from pollution, are the main cause of habitat loss and fragmentation.

Topic: Biology, Biodiversity and its Conservation, NEET
What is the main cause of menstrual flow in human females?

Options:
A Release of ovum
B Breakdown of endometrial lining
C Changes in hormones
D Fertilization of ovum

The correct answer is:
Breakdown of endometrial lining

Solution:
The menstrual flow in human females results from the breakdown of the endometrial lining of the uterus and its blood vessels, which forms liquid that comes out through the vagina.

Topic: Biology, Human Reproduction, NEET
What is the main cause of neoplastic transformation of normal cells?

Options:
A Physical agents
B Chemical agents
C Biological agents
D All of the above

The correct answer is:
All of the above

Solution:
The transformation of normal cells into cancerous neoplastic cells may be induced by physical, chemical or biological agents, also known as carcinogens.

Topic: Biology, Human Health and Diseases, NEET
What is the main cause of osteoporosis?

Options:
A Inflammation of joints due to accumulation of uric acid crystals
B Progressive degeneration of skeletal muscle mostly due to genetic disorder
C Age-related disorder characterized by decreased bone mass and increased chances of fractures
D Decreased levels of estrogen

The correct answer is:
Decreased levels of estrogen

Solution:
Osteoporosis is an age-related disorder characterized by decreased bone mass and increased chances of fractures. Decreased levels of estrogen is a common cause.

Topic: Biology, Locomotion and Movement, NEET
What is the main cause of ozone depletion over Antarctica during the winter season?

Options:
A Chlorine monoxide
B Nitrogen dioxide
C Methane
D Polar stratospheric clouds

The correct answer is:
Polar stratospheric clouds

Solution:
The main cause of ozone depletion over Antarctica during the winter season is the formation of polar stratospheric clouds, which provide a surface for the conversion of chlorine nitrate into hypochlorous acid and molecular chlorine, ultimately leading to ozone depletion when sunlight returns in the spring.

Topic: Chemistry, Environmental Chemistry, NEET
What is the main cause of reduction in yield in tobacco plants?

Options:
A Infection by viruses
B RNA interference
C Mobile genetic elements
D Infection by nematodes

The correct answer is:
Infection by nematodes

Solution:
The main cause of reduction in yield in tobacco plants is infection by nematode

Topic: Biology, Biotechnology and Its Applications, NEET
What is the main cause of respiratory damage in certain industries?

Options:
A Inflammation of bronchi and bronchioles
B Chronic Disorder
C Long exposure to dust
D Decreased respiratory surface

The correct answer is:
Long exposure to dust

Solution:
Long exposure to dust in certain industries can result in serious lung damage.

Topic: Biology, Breathing and Exchange of Gases, NEET
What is the main cause of Ringworms?

Options:
A Microsporum, Trichophyton and Epidermophyton
B Ascaris
C Plasmodium falciparum
D Entamoeba histolytica

The correct answer is:
Microsporum, Trichophyton and Epidermophyton

Solution:
Many fungi belonging to the genera Microsporum, Trichophyton and Epidermophyton are responsible for Ringworms, one of the most common infectious diseases in man.

Topic: Biology, Human Health and Diseases, NEET
What is the main cause of soil erosion and desertification?

Options:
A Over-cultivation
B Unrestricted grazing
C Deforestation
D Poor irrigation practices

The correct answer is:
Poor irrigation practices

Solution:
The development of fertile top-soil can take centuries but it can be easily removed by human activities such as over-cultivation, unrestricted grazing, deforestation, and poor irrigation practices, which result in arid patches of land and eventually lead to the creation of a desert.

Topic: Biology, Environmental Issues, NEET
What is the main cause of soil pollution?

Options:
A Domestic sewage
B Agricultural chemicals and solid waste deposits
C Ozone depletion
D Greenhouse effect

The correct answer is:
Agricultural chemicals and solid waste deposits

Solution:
Soil pollution is primarily caused by agricultural chemicals and leachates from solid waste deposits.

Topic: Biology, Environmental Issues, NEET
What is the main cause of the accelerated rates of species extinctions?

Options:
A Natural disasters
B Climate change
C Human activities
D Invasive species

The correct answer is:
Human activities

Solution:
Human activities are largely responsible for the accelerated rates of species extinctions. This includes the destruction of habitats for agriculture and raising livestock, as well as habitat degradation from pollution.

Topic: Biology, Biodiversity and its Conservation, NEET
What is the main challenge facing India after its independence?

Options:
A Developing high yielding varieties of wheat and rice
B Producing enough food for the increasing population
C Staying competitive in the global market
D Increasing yields per unit area from existing farm land

The correct answer is:
Producing enough food for the increasing population

Solution:
One of the main challenges facing India after its independence was producing enough food for the increasing population.

Topic: Biology, Strategies for Enhancement in Food Production, NEET
What is the main challenge in measuring bond strength for polyatomic molecules?

Options:
A The complexity of the molecule's structure
B The number of atoms in the molecule
C The type of bonds in the molecule
D The temperature at which the measurement is made

The correct answer is:
The complexity of the molecule's structure

Solution:
In the case of polyatomic molecules, measuring bond strength is more complicated due to the complexity of the molecule's structure.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
What is the main characteristic feature of Aves?

Options:
A Scales on hind limbs
B Beak
C Feathers
D Four-chambered heart

The correct answer is:
Feathers

Solution:
The main characteristic feature of Aves (birds) is the presence of feathers. This sets them apart from other groups of animals and allows them to fly, with the exception of flightless birds like Ostriches.

Topic: Biology, Animal Kingdom, NEET
What is the main characteristic of diakinesis stage?

Options:
A Dissolution of synaptonemal complex
B Terminalisation of chiasmata
C Appearance of recombination nodules
D Formation of tetrads

The correct answer is:
Terminalisation of chiasmata

Solution:
Diakinesis is marked by terminalisation of chiasmata, which is the main characteristic of this stage.

Topic: Biology, Cell Cycle and Cell Division, NEET
What is the main characteristic of diamagnetic substances?

Options:
A Presence of unpaired electrons
B Presence of magnetic ions
C Presence of magnetic impurities
D Presence of paired electrons

The correct answer is:
Presence of paired electrons

Solution:
Diamagnetic substances have paired electrons, which results in the cancellation of their magnetic moments.

Topic: Chemistry, Solid State, NEET
What is the main characteristic of dinoflagellates?

Options:
A They are mostly marine and photosynthetic
B They are terrestrial and non-photosynthetic
C They are freshwater and non-photosynthetic
D They are terrestrial and photosynthetic

The correct answer is:
They are mostly marine and photosynthetic

Solution:
Dinoflagellates are mostly marine and photosynthetic.

Topic: Biology, Biological Classification, NEET
What is the main characteristic of lipids?

Options:
A They are water soluble
B They are water insoluble
C They are in liquid form
D They are in solid form

The correct answer is:
They are water insoluble

Solution:
Lipids are generally water insoluble.

Topic: Biology, Biomolecules (B), NEET
What is the main characteristic of metaphase?

Options:
A Chromosomes are held together by the centromere
B Chromosomes are moved into position at the center of the cell
C Chromosomes are aligned at the metaphase plate
D All of the above

The correct answer is:
All of the above

Solution:
The main characteristic of metaphase is that chromosomes are held together by the centromere, moved into position at the center of the cell, and aligned at the metaphase plate.

Topic: Biology, Cell Cycle and Cell Division, NEET
What is the main characteristic of predation, parasitism and commensalism?

Options:
A Both species benefit in the interaction
B Both species are harmed in the interaction
C The interacting species live far apart from each other
D The interacting species live closely together

The correct answer is:
The interacting species live closely together

Solution:
In predation, parasitism and commensalism, the interacting species live closely together. This is the common characteristic of these three types of interspecific interactions.

Topic: Biology, Organisms and Populations, NEET
What is the main characteristic of telophase?

Options:
A Chromosomes condense and gain individuality
B Chromosomes decondense and lose their individuality
C Chromosomes split and move to opposite poles
D Chromosomes reform into chromatin material

The correct answer is:
Chromosomes decondense and lose their individuality

Solution:
The main characteristic of telophase is that the chromosomes decondense and lose their individuality.

Topic: Biology, Cell Cycle and Cell Division, NEET
What is the main characteristic of the fluid mosaic model?

Options:
A The ability of proteins to move laterally within the bilayer
B The rigid structure of the lipid bilayer
C The presence of intercellular junctions
D The ability to divide and form new cells

The correct answer is:
The ability of proteins to move laterally within the bilayer

Solution:
The fluid mosaic model proposes that the quasi-fluid nature of the lipid bilayer enables lateral movement of proteins within the overall bilayer.

Topic: Biology, Cell - The Unit of Life, NEET
What is the main characteristic of the hydrogen atom in a hydrogen bond?

Options:
A It becomes negatively charged
B It becomes positively charged
C It remains neutral
D It loses all its electrons

The correct answer is:
It becomes positively charged

Solution:
The hydrogen atom in a hydrogen bond becomes partially positively charged.

Topic: Chemistry, Chemical Bonding and Molecular Structure, NEET
What is the main characteristic of the life cycles of endoparasites?

Options:
A Their life cycles are simple
B Their life cycles are more complex
C Their life cycles are short
D Their life cycles are similar to those of ectoparasites

The correct answer is:
Their life cycles are more complex

Solution:
The life cycles of endoparasites are more complex due to their extreme specialisation and their simplified morphological and anatomical features.

Topic: Biology, Organisms and Populations, NEET
What is the main characteristic that differentiates one family from another in taxonomic classification?

Options:
A The number of similarities between genus and species
B The number of similarities between species and families
C The number of similarities between genus and families
D The number of similarities between families and other higher level taxon

The correct answer is:
The number of similarities between genus and species

Solution:
Families are characterized on the basis of both vegetative and reproductive features of plant species and have a group of related genera with still less number of similarities as compared to genus and species.

Topic: Biology, The Living World, NEET