datavorous/entrance-exam-dataset huggingface dataset:
Find the INCORRECT match.

Options:
A PCR - amplification of the gene of interest.
B Cloning - Ability to form large number of copies of the recombinant DNA in the host cell like E. coli.
C Restriction enzymes - Molecular scissors
D Exonucleases - Molecular glue

The correct answer is:
Exonucleases - Molecular glue

Solution:
DNA ligase is popularly known as molecular glues as they ligate or glue the strands together. PCR is also called thermal cycler or amplifier is used to make multiple copies of gene of interest. Restriction enzymes are molecular scissors as they cleave DNA at specific sites. Cloning is the ability to form large number of copies of the recombinant DNA in the host cell like E. coli.

Topic: Biology, Biotechnology - Principles and Processes, NEET
Find the INCORRECT match between the disease listed and its mode of transmission.

Options:
A Typhoid : feco-oral route
B Pneumonia : droplet infection
C Malaria : female Anopheles
D Elephantiasis : Sharing towels, cloths, comb of infected individual

The correct answer is:
Elephantiasis : Sharing towels, cloths, comb of infected individual

Solution:
Elephantiasis or Filariasis is caused by filarial worm Wuchereria. These worms when enter the body affect different organs and start causing chronic inflammation especially in the lymphatic vessels of lower limbs and thus results in large swelling of lower limbs. External genitalia too get affected. This condition is transmitted through female mosquitoes which act as vectors or carriers of filarial pathogens. Thus, elephantiasis is an infectious condition which requires vector for its transmission.

Topic: Biology, Human Health and Diseases, NEET
Find the INCORRECT match from the following.

Options:
A Origin of earth - 4.5 billion years ago
B Dinosaurs disappeared - 65 million years ago
C First cellular forms of life - 4 billion years ago
D Jawless fish evolved - 350 million years ago

The correct answer is:
First cellular forms of life - 4 billion years ago

Solution:
In the solar system of the milky way galaxy, earth was supposed to have been formed about 4.5 billion years back. The first non-cellular forms of life could have originated 3 billion years back. About 2000 million years ago (mya) or 2 billion years ago, the first cellular forms of life appeared on earth. By the time of 500 mya, invertebrates were formed and active. Jawless fish probably evolved around 350 mya. Sea weeds and few plants existed probably around 320 mya. About 65 mya, the dinosaurs suddenly disappeared from the earth. We do not know the true reason. Some say climatic changes killed them. Some say most of them evolved into birds. The truth may live in between.

Topic: Biology, Evolution, NEET
Find the INCORRECT match from the following.

Options:
A Atlas and Axis - Hinge joint
B Carpal and Metacarpal - Saddle joint
C Joint between adjacent vertebrae - Cartilagenous joint
D Joint between carpals - gliding joint

The correct answer is:
Atlas and Axis - Hinge joint

Solution:
Movement and locomotion is brought about by bones and muscles. Inbetween two bones are present joints and these are responsible for movement. These joints can be of three types depending of amount of mobility. These can be Fibrous joints that are immovable joints. Example: Sutures in skull, Cartilaginous joints are slightly movable joints, Example: joint between vertebrae and Diarthroses which are freely movable joints. These can be of various types. A) Pivot joint. Eg: joint between Atlas and Axis. B) Saddle joint eg: Joint between carpal and metacarpal. This is less formed ball and socket. C) Gliding joint. This is the simplest joint. Eg: Joint between carpals i.e. Wrist joint.

Topic: Biology, Locomotion and Movement, NEET
Find the INCORRECT match with respect to the evolution fueled by adaptive radiation.

Options:
A Bobcat - Tasmanian tiger cat
B Flying squirrel - Flying phalanger
C Lemur - Spotted cuscus
D Mouse - Mole

The correct answer is:
Mouse - Mole

Solution:
Convergent evolution means having different ancestors but similar features while divergent means having common ancestors but different characters. All are examples of convergent evolution except option d. Mouse and marsupial mouse while Mole and marsupial mole show convergent evolution.

Topic: Biology, Evolution, NEET
Find the INCORRECT match with respect to the location of the bone in the body.

Options:
A Carpals - Wrist
B Tibia - Hind limb
C Tarsals - Ankle
D Patella - Pelvis

The correct answer is:
Patella - Pelvis

Solution:
Each upper limb and lower limb has 30 bones. Upper limb consists of humerus, radius-ulna, carpals, metacarpals and phalanges. Carpals are 8 in number and arranged in two rows. These are the wrist bones. Lower limb consists of femur, tibia-fibula, tarsals, metatarsals, phalanges and patella (kneecap). Tibia-fibula are the bones of the shank region. Tarsals are seven and form the ankle. Patella is the kneecap. It is a sesamoid bone as it is formed by ossification of the tendon.

Topic: Biology, Locomotion and Movement, NEET
Find the incorrect match:

Options:
A Coke - CNS depressant drug also known as smack.
B Heroin - CNS depressant which slow down body functions.
C Morphine - Opioids which is an effective sedative and painkiller.
D Charas - Hallucinogenic chemical obtained from Cannabis sativa.

The correct answer is:
Coke - CNS depressant drug also known as smack.

Solution:
Cocaine is a CNS stimulant drug, obtained from Erythroxylum coca plant and is also known as coke or crack. Heroin is chemically diacetylmorphine and is an opioid. It is also known as smack or brown sugar. It is a CNS depressant that slows down body functions.

Topic: Biology, Human Health and Diseases, NEET
Find the incorrect statement.

Options:
A In a terrestrial ecosystem, a larger fraction of energy flow occurs through detritus food chain.
B In the aquatic ecosystem, a major conduit for energy flow is grazing food chain.
C Detritus food chain is not at all connected with grazing food chain at any level.
D Natural interconnection of food chain makes it a food web.

The correct answer is:
Detritus food chain is not at all connected with grazing food chain at any level.

Solution:
In nature, the detritus food chain is connected with grazing food chains at some levels; some of the organisms of DFC are preys to the GFC animals, and in the natural ecosystem, some animals like cockroaches, crows, etc., are omnivores.

Topic: Biology, Ecosystem, NEET
Find the incorrect statement.

Options:
A PH 4 + ion is tetrahedral like NH 4 + ion and is obtained when PH 3 is bonded to proton
B PH 4 I is one of the most stable salt containing the phosphonium ion. It is also more stable than ammonium salts
C PH 4 I is decomposed by caustic potash to form PH 3
D PH 3 is used for making Holme’s signals

The correct answer is:
PH 4 I is one of the most stable salt containing the phosphonium ion. It is also more stable than ammonium salts

Solution:
Phosphonium iodide is thermally less stable than ammonium salts because phosphine is less basic than ammonia and decomposition occurs at 60°C.
Rest all are correct.

Topic: Chemistry, p Block Elements (Group 15, 16, 17 & 18), NEET
Find the incorrect statement.

Options:
A In terrestrial ecosystem larger fraction of energy flow occurs through DFC.
B Pyramid of energy is always upright.
C In comparison to food chains, food webs are more stable.
D Detritus food chain is not at all connected with aquatic food chain at any level.

The correct answer is:
Detritus food chain is not at all connected with aquatic food chain at any level.

Solution:
In nature detritus food chain is connected with grazing food chain at some levels; some of the organism of DFC are prey to the GFC animals, and in natural ecosystem some animals like cockroaches, crows etc are omnivores. These natural interconnection of food chains makes a food web.

Topic: Biology, Ecosystem, NEET
Find the incorrect statement.

Options:
A Gene therapy is a genetic engineering technique used to treat diseases at molecular level by replacing defective genes with normal genes
B Calcitonin is a medically useful recombinant product in the treatment of infertility
C Bt toxin is a biodegradable insecticide obtained from Bacillus thuringiensis
D Trichoderma sp. is a biocontrol agent for fungal diseases of plants

The correct answer is:
Calcitonin is a medically useful recombinant product in the treatment of infertility

Solution:
Calcitonin is a thyroid hormone secreted by C-cells, which regulates the concentration of calcium and phosphorus in the blood. It has nothing to do with treatment of infertility.

Topic: Biology, Microbes in Human Welfare, NEET
Find the INCORRECT statement.

Options:
A 250g of Methylophilus methylotrophus produce 25×103 kg of protein in a day
B The shift from meat to grain diets creates more demand for cereals.
C 250 kg cow produces 200 g of protein per day.
D Spirulina when growing on sewage also reduces environmental pollution besides producing large quantities of protein.

The correct answer is:
The shift from meat to grain diets creates more demand for cereals.

Solution:
The shift from grain to meat diets creates more demand for cereals as these are used to produce the feed for the animals that are grown for meat production. This results in increased demand for cereals.
SCP-single cell proteins are the proteins obtained from the culture of single-celled organisms on an industrial scale as these require minimal nutrients like molasses, sewage, wastewater. These cells can serve as rich sources of food nutrients like proteins. For example, 250g of Methylophilus methylotrophus produce 25 x103 kg of protein in a day. These microbes also help in reducing environmental pollution.

Topic: Biology, Strategies for Enhancement in Food Production, NEET
Find the incorrect statement.

Options:
A Biosphere is a global ecosystem
B Transfer of energy in ecosystem is explains in terms of food web and nutrient cycle.
C Ecosystem is structural and not functional unit of nature.
D Pond, lake and wetlands are aquatic ecosystem.

The correct answer is:
Ecosystem is structural and not functional unit of nature.

Solution:
Ecosystem is structural and functional unit of nature, where living organisms interact among themselves and also with the surrounding physical environment.

Topic: Biology, Ecosystem, NEET
Find the INCORRECT statement:

Options:
A Each rib in human is attached at one end to the vertebral column and at the other end to sternum and is therefore called bicephalic.
B There are 12 pairs of ribs, each pair is attached to 1 thoracic vertebra.
C Each rib is a C shaped flat bone
D First 7 pair of ribs are attached to sternum with the help of a hyaline cartilage .

The correct answer is:
Each rib in human is attached at one end to the vertebral column and at the other end to sternum and is therefore called bicephalic.

Solution:
There are 12 pairs of ribs in humans. The upper seven pairs of ribs are attached in front directly to the sternum by hyaline cartilage. These are called true rib. The next three pairs of rib costal cartilage attach indirectly to the sternum. They are termed false ribs. The lower two pair of ribs are free in front they are known as floating ribs. These 12 pairs are attached dorsally to thoracic vertebrae. Ribs also are known as costa are 'C' shaped bones. Ventral attachment of ribs varies. The First 7 pairs are known as true ribs as these are attached ventrally to the sternum. The next three pairs i.e. 8th, 9th, and 10th pair are attached ventrally to the 7th rib and are known as false ribs. 11th and 12th pairs are floating ribs as these do not have ventral attachment and thus appears floating. All the 12 pairs are also known as bicephalic ribs because dorsally every rib has two articulation points (bi means two and cephalic means head).

Topic: Biology, Locomotion and Movement, NEET
Find the incorrect statement from the following.

Options:
A Majority of Euglenoids are fresh water organisms found in stagnant water.
B Slime moulds are saprophytic protists.
C All protozoans are heterotrophic and live as predators or saprophytes.
D Dinoflagellates are mostly marine and photosynthetic.

The correct answer is:
All protozoans are heterotrophic and live as predators or saprophytes.

Solution:
All protozoans are unicellular animal-like organisms broadly divided into three groups-photosynthetic, slime molds, and protozoans. Photosynthetic protists are photoautotrophic like diatoms, dinoflagellates, and euglenoids. Protozoan protists include sarcodines/amoebae, zooflagellates, sporozoans, and ciliates.

Topic: Biology, Biological Classification, NEET
Find the incorrect statement from the following.

Options:
A Majority of Euglenoids are fresh water organisms found in stagnant water.
B Slime moulds are saprophytic protists.
C In diatoms, the cell walls form two thin non-overlapping shells, which fit together as in a soap box.
D Dinoflagellates are mostly marine and photosynthetic.

The correct answer is:
In diatoms, the cell walls form two thin non-overlapping shells, which fit together as in a soap box.

Solution:
In diatoms, the cell walls form two thin overlapping shells, which fit together as in a soap box. The walls are embedded with silica and thus the walls are indestructible. Thus, diatoms have left behind large amount of cell wall deposits in their habitat; this accumulation over billions of years is referred to as ‘diatomaceous earth’.

Topic: Biology, Biological Classification, NEET
Find the incorrect statement from the following.

Options:
A Integral proteins are present on the surface of the membrane.
B Phospholipids are arranged in a bilayer, which is the major constituent of the cell membrane.
C The cell membrane of RBCs consists of 40% lipids and 52% proteins.
D Both B and C

The correct answer is:
Integral proteins are present on the surface of the membrane.

Solution:
The cell membrane consists of two types of proteins: integral proteins are intrinsic proteins which are present deeply embedded in the lipid bilayer and cannot be easily removed, external proteins are present on the surface and loosely associated with the lipid bilayer.

Topic: Biology, Cell - The Unit of Life, NEET
Find the incorrect statement from the following.

A. Tropical rain forests cover around 6% of the earth's land surface.
B. The Amazonian rain forest is being cut and cleared for soya bean cultivation or for conversion to grasslands for raising beef cattle.
C. Animals with migratory habits are badly affected by habitat loss and fragmentation.
D. Mammals and birds require small territories.

Options:
A AÂ andÂ BÂ only
B AÂ andÂ DÂ only
C D only
D BÂ andÂ CÂ only

The correct answer is:
D only

Solution:
When large habitats are broken up into small fragments due to various human activities, mammals and birds requiring large territories and certain animals with migratory habits are badly affected, leading to population decline.

Topic: Biology, Biodiversity and its Conservation, NEET
Find the incorrect statement from the following.

Options:
A Tropical rain forests cover around 6 percent of earth's land surface.
B Animals with migratory habits are badly affected by habitat loss and fragmentation.
C Mammals and birds require small territories.
D Amazonian rain forest is being cut and cleared for soya bean cultivation or for conversion to grasslands for raising beef cattle.

The correct answer is:
Mammals and birds require small territories.

Solution:
Mammals and birds require large territories.
When large habitats are broken up into small fragments due to various human activities, mammals and birds requiring large territories and certain animals with migratory habits are badly affected, leading to population decline.

Topic: Biology, Biodiversity and its Conservation, NEET
Find the incorrect statement.

Options:
A 'Sixth extinction' is different from previous extinction in terms of rate of extinction.
B Ecologists warn that if the present trend of extinction continues, nearly 50 percent of all species on earth might be wiped out within the next 100 years.
C Amphibians appear to be more vulnerable to extinction.
D Recent extinction is completely natural.

The correct answer is:
Recent extinction is completely natural.

Solution:
During the long period since the origin and diversification of life on earth, there were five episodes of mass extinction of species. The current species extinction rates are estimated to be 100 to 1000 times faster than those in the pre-historic times.

Topic: Biology, Biodiversity and its Conservation, NEET
Find the magnitude of the magnetic field at the center of an equilateral triangular loop of side length 1 m which is carrying a current of 10 A. (Take Î¼0=4ÏÃ10-7NA-2)

Options:
A 18 Î¼T
B 1 Î¼T
C 9 μT
D 3 Î¼T

The correct answer is:
18 Î¼T

Solution:
Magnetic field due to wire BC is âB=Î¼04ÏiâÃ2332+32â

Net magnetic field at centre = 3B

=Î¼04ÏiâÃ2332+323â

=Î¼04Ï1â6(1)3=10-7Ã101Ã18=18Ã10-6T

Topic: Physics, Magnetic Effects of Current, NEET
Find the magnitude of the resultant of two vectors A and B in terms of their magnitudes and angle θ between them.

Options:
A $R=\sqrt{{{A}^{2}}+~{{B}^{2}}+2ABcos\theta }$
B $R=\sqrt{{{A}^{2}}+~{{B}^{2}}+2ABsin\theta }$
C $R=\sqrt{A+~{{B}^{{}}}+2ABcos\theta }$
D $R=\sqrt{{{A}^{{}}}+~{{B}^{{}}}+2ABsin\theta }$

The correct answer is:
$R=\sqrt{{{A}^{2}}+~{{B}^{2}}+2ABcos\theta }$

Solution:
Correct Option is : (A)
$R=\sqrt{{{A}^{2}}+~{{B}^{2}}+2ABcos\theta }$

Topic: Chemistry, Motion In Two Dimensions, NEET
Find the maximum speed with which an automobile can make a circular curve of radius 8 m without slipping if the road is unbanked and the coefficient of friction between the road and the tyres is 0.8. g=10 m s-2

Options:
A 8 m s-1
B 10 m s-1
C 20 m s-1
D none of these

The correct answer is:
8 m s-1

Solution:
Here centripetal force is provided by the force of friction.
∵ f⁡=μsN
∴ f⁡=mv2r
μsN=mv2r or μs mg=mv2r
∴ v=μgr=0.8×10×8=8 m s-1

Topic: Physics, Laws of Motion, NEET
Find the minimum frequency of light which can ionize a hydrogen atom

Options:
A 3.28Ã1015 Hz
B 5Ã1015Â Hz
C 91.1ââHz
D None of these

The correct answer is:
3.28Ã1015 Hz

Solution:
Ionisation energy of H-atom =13.6 eV
â´hfmin=13.6 eV
â´fmin=13.6Ã1.6Ã10-196.63Ã10-34=3.28Ã1015 Hz

Topic: Physics, Atomic Physics, NEET
Find the mismatch from the following pairs.

Options:
A Joint between carpal and metacarpal of thumb - Gliding joint
B Joint between humerus and pectoral girdle - Ball and Socket joint
C Hinge joint - Joint in the elbows
D Joint between atlas and axis - Pivot joint

The correct answer is:
Joint between carpal and metacarpal of thumb - Gliding joint

Solution:
Saddle joint between carpal and metacarpal of thumb.

Topic: Biology, Locomotion and Movement, NEET
Find the mismatched pair.

Options:
A Physical barriers - Mucus coating of the epithelium lining the gastrointestinal tracts.
B Physiological barriers - Acid in the stomach
C Cellular barriers - PMNL-neutrophils
D Cytokine barriers - saliva in mouth

The correct answer is:
Cytokine barriers - saliva in mouth

Solution:
Cytokine barriers are proteins like interferons which are produced by virus-infected cells. Saliva in mouth is an example of physiological barriers.

Topic: Biology, Human Health and Diseases, NEET
Find the natural polymer among the following

Options:
A Nylon
B Teflon
C PVC
D Cellulose

The correct answer is:
Cellulose

Solution:
Natural polymers: These polymers are found in plants and animals. Examples are proteins, cellulose, starch, some resins and rubber.

Nylon, teflon and PVC are examples of manmade polymers extensively used in daily life as well as in industry.

Topic: Chemistry, Polymers, NEET
Find the number of ATP required in the reduction step of the C3 cycle if the cycle is involved in the formation of one sucrose molecule.

Options:
A 12 ATP
B 24 ATP
C 18 ATP
D 6 ATP

The correct answer is:
24 ATP

Solution:
Calvin cycle consists of three steps, carboxylation, reduction, and regeneration. For a reduction of 6 molecules of carbon dioxide to form one glucose molecule, 12 ATP molecules are required. Sucrose, commonly named cane and beet sugar is a disaccharide with the combination of the monosaccharides glucose and fructose with the formula C12H22O11. The ATP molecule required in reduction step of the Calvin cycle is 24. Here, 6 ATP is required for 3 carbon sugar. In sucrose 12 carbon is present. So, 6 x 4=24 ATP. Hence, the correct answer is 24.

Topic: Biology, Photosynthesis in Higher Plants, NEET
Find the number of correct match in the following:

I. Cancer: Cells loose contact inhibition

II. Crack or coke : Usually snorted

III. Hashish: A cannabinoid

IV. Smoking: Causes lymphoma

V. Hepatitis B: Transmitted by sexual contact and needles.

Options:
A Five
B Four
C Three
D Two

The correct answer is:
Four

Solution:
Statement IV is incorrect.
Smoking causes bronchitis, emphysema and lung cancer. Most common type of lung cancer is bronchogenic carcinoma (90%).

Topic: Biology, Human Health and Diseases, NEET
Find the number of correct match in the following:
I. Cancer: Don’t die of ignorance disease
II. Cocaine: Called coke or crack is usually snorted
III. Charas: Binds to cannabinoids receptors of CNS & GI tract
IV. Smoking: Causes cancer of urinary bladder
V. Hepatitis B: Sexually transmitted disease

Options:
A Five
B Four
C Three
D Two

The correct answer is:
Three

Solution:
AIDS disease has no cure, prevention is the best option. The only excuse maybe ignorance and therefore it is called don’t die of ignorance.
Smoking causes lung cancer.

Topic: Biology, Human Health and Diseases, NEET
Find the odd one out about sickle-cell anemia.

Options:
A It is an example of point mutation.
B Glutamate is replaced by valine.
C Change occurs in single base pair in gene for globulin chain.
D It is an example of allosomal recessive mutation.

The correct answer is:
It is an example of allosomal recessive mutation.

Solution:
Sickle cell anemia
- It is an autosomal recessive disease.
- This disease is controlled by a pair of alleles - HbA (normal dominant allele) and HbS (affected recessive allele).
- Both male and female have either of the three genotypes :
1. HbA HbA - Normal phenotype.
2. HbA HbS - Normal phenotype. For a heterozygous individual, there are 50% chances of transferring the affected allele to next progeny.
3. HbS HbS - Diseased phenotype.
- In this disease, due to single base substitution (GAG to GUG), Glutamic acid (Glu) at 6th position of the Î² -globin chain of the haemoglobin molecule is substituted by Valine (Val).
- Under low oxygen tension, RBC changes its shape to a elongated sickle like structure due to the polymerization of the affected haemoglobin molecule.

Topic: Biology, Principles of Inheritance and Variation, NEET
Find the odd one out from the following.

Options:
A Humerus, thigh, tibia and fibula, radius and ulna
B Metacarpals and metatarsals, phalanges of fingers and toes
C Scapula of shoulder bone, sternum, cranial bones, vertebrae
D Carpals of wrist and tarsals of ankle

The correct answer is:
Scapula of shoulder bone, sternum, cranial bones, vertebrae

Solution:
Humerus, thigh, tibia and fibula, radius and ulna; Metacarpals and metatarsals, phalanges of fIngers and toes; Carpals of wrist and tarsals of ankle are the bones of the limbs. Scapula of shoulder bone, sternum, cranial bones, vertebrae are the bones of girdle and axial skeleton.

Topic: Biology, Locomotion and Movement, NEET