datavorous/entrance-exam-dataset huggingface dataset:
Which of the following antibody can be characterized by the following features?

1. It is the heaviest antibody.
2. The first antibody which comes into action after entry of the pathogen.
3. It is a pentamer.

Options:
A IgA
B IgG
C IgM
D IgE

The correct answer is:
IgM

Solution:
IgM usually circulates in the blood, accounting for about 10% of human immunoglobulins. IgM has a pentameric structure in which five basic Y-shaped molecules are linked together. B cells produce IgM first in response to microbial infection/antigen invasion.

Topic: Biology, Human Health and Diseases, NEET
Which of the following antibody present in colostrum and provide passive immunity to the infant?

Options:
A IgM,IgG
B IgG, IgA
C IgA only
D IgG only

The correct answer is:
IgA only

Solution:
Active immunity means pathogen or antigen when introduced in the body triggers formation of antibodies. Passive immunity means directly antibodies are injected. It can be Natural or Artificial. Colostrum is the first milk produced by the mother after parturition. It is a rich of IgA and thus through this milk the antibodies are directly delivered to the baby. Thus this is an example of passive immunity.

Topic: Biology, Human Reproduction, NEET
Which of the following aqueous solution will have pH less than 7.0?

Options:
A KNO 3
B NaOH
C FeCl 3
D NaCN

The correct answer is:
FeCl 3

Solution:
FeCl 3 is a salt of weak base, Fe(OH) 3 and strong acid, HCl, so FeCl 3 solution is acidic in nature. In other words, Fe 3+ hydrolyze, but Cl − does not.

Topic: Chemistry, Ionic Equilibrium, NEET
Which of the following are Autoimmune disorders?
A. Myasthenia gravis
B. Rheumatoid arthritis
C. Gout
D. Muscular dystrophy
E. Systemic Lupus Erythematosus (SLE)
Choose the most appropriate answer from the options given below:

Options:
A A, B \& E only
B $\mathrm{B}, \mathrm{C} \& \mathrm{E}$ only
C C, D \& E only
D A, B \& D only

The correct answer is:
A, B \& E only

Solution:
The correct answer is option (1) as Myasthenia gravis, Rheumatoid arthritis and Systemic Lupus Erythematosus (SLE) are autoimmune disorders.
Muscular dystrophy is a genetic disorder which progressively affects the skeletal muscles. Gout is the inflammation of joints due to deposition of uric acid crystals.
Option (2), (3) and (4) are not the correct answer because all of them are not autoimmune disorders.

Topic: Biology, Human Health and Diseases, NEET, NEET 2024
Which of the following are categorized under Chordata?

Options:
A Urochordata and cephalochordata
B Hemichordata and urochordata
C Craniata and Hemichordata
D Vertebrata and Echinodermata

The correct answer is:
Urochordata and cephalochordata

Solution:
Classification of Phylum Chordata
I. Subphylum Urochordata or Tunicata
II. Subphylum Cephalochordata
III. Subphylum Vertebrata
Subphylum Urochordata and Cephalochordata are collectively termed as protochordata.

Topic: Biology, Animal Kingdom, NEET
Which of the following are common freshwater fishes?

Options:
A Mackerel and Rohu
B Rohu, common carp and Catla
C Hilsa and Sardine
D None of these

The correct answer is:
Rohu, common carp and Catla

Solution:
Some of the freshwater fishes which are very common include Catla, Rohu, and common carp. Some of the marine
fishes that are eaten include – Hilsa, Sardines, Mackerel, and Pomfrets.

Topic: Biology, Strategies for Enhancement in Food Production, NEET
Which of the following are correct about cellular respiration?
A. Cellular respiration is the breaking of C - C bonds of complex organic molecules by oxidation.
B. The entire cellular respiration takes place in Mitochondria.
C. Fermentation takes place under anaerobic condition in germinating seeds.
D. The fate of pyruvate formed during glycolysis depends on the type of organism also.
E. Water is formed during respiration as a result of $\mathrm{O}_2$ accepting electrons and getting reduced.
Choose the correct answer from the options below:

Options:
A A, C, D, E only
B A, B, E only
C A, B, C, E only
D B, C, D, E only

The correct answer is:
A, C, D, E only

Solution:
The entire cellular respiration do not take place in mitochondria. The process of glycolysis during respiration occur in cytoplasm of cell.
Hence statement A, C, D and E are correct.

Topic: Biology, Respiration in Plants, NEET, NEET 2024 (Re-NEET)
Which of the following are correct about EcoRI?
A. Cut the DNA with blunt end
B. Cut the DNA with sticky end
C. Recognise a specific palindromic sequence
D. Cut the DNA between the base G and A when encounters the DNA sequence 'GAATTC'
E. Exonuclease
Choose the correct answer from the options given below:

Options:
A B, C, E only
B A, D, E only
C A, C, D only
D B, C, D only

The correct answer is:
B, C, D only

Solution:
The correct answer is option (4) as
EcoRI does not cut the DNA with blunt ends. Instead, it cuts the DNA with sticky / cohesive / staggered ends on each strand.
EcoRI is a restriction endonuclease that recognises a specific palindromic sequence and cuts at a specific site within the DNA, known as the restriction site. It is not an exonuclease as exonucleases remove nucleotides from the free ends of the DNA.
The recognition sequence for EcoRI is $\begin{aligned} & 5^{\prime}-\mathrm{G}^{\downarrow}-\mathrm{A}-\mathrm{A}-\mathrm{T}-\mathrm{T}-\mathrm{C}-3^{\prime} \\ & 3^{\prime}-\mathrm{C}-\mathrm{T}-\mathrm{T}-\mathrm{A}-\mathrm{A}_{\uparrow}-\mathrm{G}-5^{\prime}\end{aligned}$ and it cuts the DNA between bases G and A only when the sequence GAATTC is present in the DNA.
Therefore, 'A' and ' $E$ ' represent incorrect features about EcoRI, whereas ' B ', 'C' and ' D ' are correct features of EcoRI.
The other options, i.e., (1), (2) and (3) are incorrect as they represent incorrect combinations of features w.r.t. EcoRI.

Topic: Biology, Biotechnology - Principles and Processes, NEET, NEET 2024 (Re-NEET)
Which of the following are correct for numerical taxonomy?

(i) Based on all observable characteristics.

(ii) Uses chemical constituents of the plant to resolved confusion.

(iii) Based on cytological information like chromosome number, structure and behavior.

(iv) Numbers and codes assigned to a few characters.

(v) At the same time, hundreds of characters can be considered.

(vi) Carried out using computers.

Options:
A i, v, vi
B iii, iv, v
C i, iv, v, vi
D ii, iii, v, vi

The correct answer is:
i, v, vi

Solution:
Numerical Taxonomy is now carried out using computers is based on all observable characteristics. Number and codes are assigned to all the characters and the data are then processed. In this way each character is given equal importance and at the same time hundreds of characters can be considered. Cytotaxonomy that is based on cytological information like chromosome number, structure, behaviour and chemotaxonomy that uses the chemical constituents of the plant to resolve confusions, are also used by taxonomists these days.

Topic: Biology, Biological Classification, NEET
Which of the following are correct statements- i)H2O ice cubes float in D2O liquid state. ii)H2O ice cubes sink in H2O liquid state. iii)D2O ice cubes sink in H2O liquid state. iv)D2O ice cubes float in D2O liquid state.

Options:
A i,iii,iv
B i,ii
C iii,ii
D ii,i,iii

The correct answer is:
i,iii,iv

Solution:
Correct Option is : 1
i,iii,iv

Topic: Chemistry, Hydrogen, NEET
Which of the following are correctly matched?

(A) Ethylene - Thinning of cotton, cherry and walnut
(B) ABA - Antagonist to Gibberellic acids
(C) Cytokinin - Speed up the malting process in brewing industry
(D) Auxins - Prevent fruit and leaf drop at early stages

Choose the correct option:

Options:
A (A), (B) and (D)
B (A) and (B)
C (B), (C) and (D)
D (C) and (D)

The correct answer is:
(A), (B) and (D)

Solution:
Ethylene fruit ripening in tomatoes and apples and accelerates abscission in flowers and fruits (thinning of cotton, cherry, walnut). By inducing dormancy, ABA helps seeds to withstand desiccation and other factors unfavourable for growth. In most situations, ABA acts as an antagonist to Gibberellins. Auxins help to prevent fruit and leaf drop at early stages but promote the abscission of older mature leaves and fruits. Gibberellins are used to speed up the malting process in brewing industry.

Topic: Biology, Plant - Growth and Development, NEET
Which of the following are correctly matched with respect to their taxonomic classification?

Options:
A Flying fish, cuttlefish, silverish - Pisces
B Centipede, millipede, spider, scorpion -Insecta
C House fly, butterfly, tse-tse fly, silverfishInsecta
D Spiny anteater, sea urchin, sea cucumber - Echinodermata

The correct answer is:
House fly, butterfly, tse-tse fly, silverfishInsecta

Solution:
Housefly, butterfly, tse-tse fly, silverfish-Insecta of phylum-Arthropoda.
Flying fish, class-Osteichthyes of phylum-Pisces, cuttle fish (Sepia) of phylum-Mollusca
Silver fish, class-Insecta of phylum-Arthropoda
Sea urchin and sea cucumber belong to Echinodermata spider and scorpion belong to class-Arachnida of phylum-Arthropoda. Centipede belongs to class-Chilopoda of phylum-Arthropoda. Millipede belongs class-Diplopeda of phylum-Arthropoda. Spring anteater belongs to phylum-Mammalia.

Topic: Biology, The Living World, NEET, NEET 2013 (All India)
Which of the following are critical elements necessary for plant growth?

Options:
A C,H,O
B Ca,Mg,S
C N,P,K
D Mn,Fe,Cu

The correct answer is:
N,P,K

Solution:
Nitrogen, phosphorous, and potassium are three critical elements that are very much necessary for plant growth and development.

Topic: Biology, Mineral Nutrition, NEET
Which of the following are electromagnetic waves?

Options:
A Cosmic rays
B Gamma rays
C β+-rays
D β-- rays

The correct answer is:
Gamma rays

Solution:
Cosmic rays are coming from outer space, having high energy charged particles, like α-particle, proton etc. β-rays are stream of high energy electrons/positrons coming from the nucleus of radioactive atoms.

Topic: Physics, Electromagnetic Waves, NEET
Which of the following are examples of extended objects

Options:
A a pond and a building
B a building and a deep lake
C a deep lake and a mountain
D a mountain and a building

The correct answer is:
a deep lake and a mountain

Solution:
Correct Option is : (C)
a deep lake and a mountain

Topic: Chemistry, Rotational Motion, NEET
Which of the following are favourable conditions for the chemisorption process?

Options:
A High temperature, more surface area
B Low temperature, more surface area
C Low temperature, less surface area
D High temperature, less surface area

The correct answer is:
High temperature, more surface area

Solution:
Correct Option is : 1
High temperature, more surface area

Topic: Chemistry, Surface Chemistry, NEET
Which of the following are found in extreme saline conditions?

Options:
A Archaebacteria
B Eubacteria
C Cyanobacteria
D Mycobacteria

The correct answer is:
Archaebacteria

Solution:
Archaebacteria are able to survive in harsh conditions because of branched lipid chain in the cell membrane which reduces the fluidity of the cell membrane. Archaebacteria are the oldest organisms living on the Earth. They are unicellular prokaryotes and belong to the kingdom, Archaea. They were first discovered in 1977 and classified as bacteria. Most archaebacteria appear like bacteria when observed under the microscope. However, they are quite different from bacteria and eukaryotic organisms.

Topic: Biology, Biological Classification, NEET, NEET 2017
Which of the following are found in plant cells but not in animal cells?

Options:
A Plastids
B Central vacuole
C Centrioles
D All of the above

The correct answer is:
All of the above

Solution:
Plant cells possess plastids, a large central vacuole, and are absent in almost all animal cells. However, animal cells have centrioles which are absent in almost all plant cells and nuclear envelopes are present in both plant and animal cells.

Topic: Biology, Cell - The Unit of Life, NEET
Which of the following are found parasitic on human beings?

Options:
A Peacock
B Taenia - Tapeworm
C Earthworm
D Leech

The correct answer is:
Taenia - Tapeworm

Solution:
Taenia is found parasitic on human beings.

Topic: Biology, Animal Kingdom, NEET
Which of the following are fused in somatic hybridization involving two varieties of plants?

Options:
A Somatic embryos
B Protoplasts
C Pollens
D Callus

The correct answer is:
Protoplasts

Solution:
Protoplast of two varieties of plants are fused in somatic hybridization.

Topic: Biology, Biodiversity and its Conservation, NEET, NEET 2024
Which of the following are highly sensitive to oxides of sulphur and are indicators of sulphur pollution?

Options:
A Equisetum
B Lichen
C Eucalyptus
D Eichhornia

The correct answer is:
Lichen

Solution:
Lichens are well known as sensitive indicators of air pollution, particularly for sulphur dioxide. The extreme sensitivity of lichens to SO2 is partially related to their ability to absorb more SO2 for a given concentration than typical vascular plants. Air pollutants adversely impact not only growth, reproductive potential, and morphology, but also a wide variety of physiological processes, which also becomes reflected in ultra-structural changes.

Topic: Biology, Biological Classification, NEET
Which of the following are homologous organs?

Options:
A Wings of birds and Locust
B Wings of birds (sparrow) and pectoral fins of fish
C Wings of bat and butterfly
D Legs of frog and cockroach

The correct answer is:
Wings of birds (sparrow) and pectoral fins of fish

Solution:
Homologous organs are the ones that have a common and similar basic structure but perform different functions. The wings of a bird and fins of a fish have similarity in their basic anatomical structure (made of bony musculature) but the wings are used for flying whereas the fins are used for swimming.

Topic: Biology, Evolution, NEET, NEET 2002
Which of the following are important components of biodiversity?

Options:
A Species diversity
B Genus diversity
C Genetic diversity
D Both A and C are correct

The correct answer is:
Both A and C are correct

Solution:
The three significant components of biodiversity are Species diversity, Genetic diversity and ecosystem diversity

Topic: Biology, Biodiversity and its Conservation, NEET
Which of the following are included as tracheophytes?

Options:
A Bryophytes, pteridophytes and Gymnosperms but not angiosperms
B Pteridophytes, Gymnosperms and Angiosperms but not bryophytes
C Algae, Fungi, and Bryophytes but not pteridophytes, gymnosperms and angiosperms
D Algae, Fungi, Bacteria, Bryophytes and pteridophytes but not gymnosperms and angiosperms

The correct answer is:
Pteridophytes, Gymnosperms and Angiosperms but not bryophytes

Solution:
Tracheophytes are plants which possess vascular tissues. Pteridophytes, gymnosperms and angiosprerms all consist of vascular tissues. Members of the division Bryophyta develop spore and embryo but lack both vascular tissues and seeds.

Topic: Biology, Plant Kingdom, NEET
Which of the following are incorrect as a criterion for the essentiality of an element.

i. If the concerned element is deficient another element can fulfil the need of it.
ii. The plants would complete their life cycle irrespective of the absence or deficiency of the elements.
iii. The elements have indirect involvement in the metabolism of plants.
iv. The elements must be absolutely necessary for supporting normal growth and reproduction.

Options:
A i , ii, iii, iv
B i , iii
C i , ii, iii
D ii, iii

The correct answer is:
i , ii, iii

Solution:
The criteria for essentiality of an element are :
1. The element must be absolutely necessary for supporting normal growth and reproduction.
2. In the absence of element the plants do not complete their life cycle.
3. The requirement of the element must be specific and not replaceable by another element.
4. The element must be directly involved in the metabolism of the plant.

Topic: Biology, Mineral Nutrition, NEET
Which of the following are isoelectronic species i.e., those having the same number of electrons among Na+, K+, Mg2+, Ca2+, S2–, Ar ?

Options:
A Na+,K+(10 electrons each) and Ca2+, Ar, S2–,Mg2+(18 electrons each)
B Na+,Mg2+(10 electrons each) and Ca2+, Ar, S2–,K+(18 electrons each)
C Ca2+,Ar(10 electrons each) and Na+,Mg2+,S2–,K+(18 electrons each)
D Na+,Ar(10 electrons each) and Ca2+,Mg2+,S2–,K+(18 electrons each)

The correct answer is:
Na+,Mg2+(10 electrons each) and Ca2+, Ar, S2–,K+(18 electrons each)

Solution:
Correct Option is : (B)
Na+,Mg2+(10 electrons each) and Ca2+, Ar, S2–,K+(18 electrons each)

Topic: Chemistry, Structure of Atom, NEET
Which of the following are isomers?

Options:
A 3PGA and 2PGA
B PGAL and DHAP
C Glucose and Fructose
D All of these

The correct answer is:
All of these

Solution:
Isomers have the same chemical formula but different structural formulas. Glucose and fructose both are monosaccharides with six carbons but due to presence of different functional groups (glucose has aldehydic group and fructose has ketonic group) have different structures. 3PGA and 2PGA are phosphoglyceraldehydes with phosphate at third carbon and second carbon respectively and hence have different structures. PGAL is phosphoglyceraldehyde and DHAP is dihydroxyacetone phosphate and has aldehydic and ketonic functional groups, respectively. All the above three examples are thus isomers.

Topic: Chemistry, Biomolecules, NEET
Which of the following are Lewis acids? H2O, BF3, H+, and NH4+.

Options:
A H2O and BF3
B BF3and H+
C H2O and NH4+
D H+and NH4+

The correct answer is:
BF3and H+

Solution:
Correct Option is : (B)
BF3and H+

Topic: Chemistry, Ionic Equilibrium, NEET
Which of the following are likely to be present in deep sea water?

Options:
A Archaebacteria
B Eubacteria
C Blue-green algae
D Saprophytic fungi

The correct answer is:
Archaebacteria

Solution:
Archaebacteria flourish in hot springs and deep sea hypothermal vents. Eubacteria are true bacteria, characterised by the presence or rigid cell wall and if motile a flagellum. Most fungi are heterotrophic and absorb soluble organic matter from dead substrates and hence are called saprophyte. The cyanobacteria have chlorophyll-a similar to green plants and are photosynthetic autotrophs.

Topic: Biology, Biological Classification, NEET, NEET 2013 (All India)
Which of the following are non-reducing sugars –
(i)
(ii)
(iii)
(iv)

Options:
A (i)&(iv)
B (i),(ii)&(iv)
C (iii)
D (ii)&(iv)

The correct answer is:
(iii)

Solution:
Compound without hemiacetal or α- hydroxy hemiketal are non-reducing

Topic: Chemistry, Biomolecules, NEET
Which of the following are not a constant value between two given thermodynamic states of a given system?

(I) q+w

(II) q

(III) w

(IV) H-TS

Options:
A (I) and (IV)
B (II), (III) and (IV)
C (I), (II) and (III)
D (II) and (III)

The correct answer is:
(II) and (III)

Solution:
We know that q (heat) and w (work) aren't state functions but dv=dq+dw is a state function.
H - TS (i.e. G) is also a state function.
Thus II and III are not state functions so the correct answer is option (D).

Topic: Chemistry, Thermodynamics (C), NEET
Which of the following are NOT considered as the part of endomembrane system?

A. Mitochondria

B. Endoplasmic reticulum

C. Chloroplasts

D. Golgi complex

E. Pesoxisomes

Choose the most appropriate answer from the options given below:

Options:
A A, D and E only.
B B and D only
C A, C and E only
D A and D only

The correct answer is:
A, C and E only

Solution:
The endomembrane system inside the eukaryotic cells functions in a coordinated manner.

The endomembrane system include endoplasmic reticulum (ER), Golgi complex (GB or Golgi bodies), lysosomes and vacuoles.

Since the functions of the mitochondria, chloroplast and peroxisomes are not coordinated with the above components, these are not considered as part of the endomembrane system.

Topic: Biology, Cell - The Unit of Life, NEET, NEET 2023 (All India)
Which of the following are not fatty acids?
A. Glutamic acid
B. Arachidonic acid
C. Palmitic acid
D. Lecithin
E. Aspartic acid
Choose the correct answer from the options given below :

Options:
A C, D and E only
B A and B only
C A, D and E only
D B and C only

The correct answer is:
A, D and E only

Solution:
Option (3) is the correct answer because glutamic acid and aspartic acid are amino acids while lecithin is a phospholipid. Palmitic acid and arachidonic acid are fatty acids.

Topic: Biology, Biomolecules (B), NEET, NEET 2024 (Re-NEET)
Which of the following are not found in animal cells?

Options:
A Cell walls
B Plastids
C Centrioles
D Nuclear envelope

The correct answer is:
Cell walls

Solution:
Animal cells do not possess cell walls, which are found in plant cells. Plastids, centrioles, and nuclear envelopes are all present in animal cells.

Topic: Biology, Cell - The Unit of Life, NEET
Which of the following are not state functions?
(I) $q+W$
(II) $q$
(III) $W$
(IV) $H-T S$

Options:
A (I) and (IV)
B (II), (III) and (IV)
C (I,) (II) and (III)
D (II) and (III)

The correct answer is:
(II) and (III)

Solution:
Key Idea : State function is the property of the system whose value depends only on the initial and final state of the system and is independent of the path.
$\because$ Internal energy $(\Delta E)=q+W$
It is a state function because it is independent of the path. It is an extensive property.
$\because$ Gibbs energy $(G)=H-T S$
It is also a state function because it is independent of the path. It is also an extensive property.
Heat $(q)$ and work $(W)$ are not state functions being path dependent.

Topic: Chemistry, Thermodynamics (C), NEET, NEET 2008 (Screening)
Which of the following are not the effects of parathyroid hormone?

(a) Stimulates the process of bone resorption.

(b) Decreases Ca2+ level in blood.

(c) Reabsorption of Ca2+ by renal tubules.

(d) Decreases the absorption of Ca2+ from digested food.

(e) Increases metabolism of carbohydrates.

Choose the most appropriate answer from the options given below:

Options:
A (b), (d) and (e) only
B (a) and (e) only
C (b) and (c) only
D (a) and (c) only

The correct answer is:
(b), (d) and (e) only

Solution:
PTH, also known as parathormone, is made by the parathyroid glands. PTH is directly involved in the functioning of bones, kidneys, and the small intestine.

In the bones, PTH stimulates the release of calcium in an indirect process through osteoclasts which ultimately leads to resorption of the bones.

Parathyroid hormone regulates calcium levels in the blood, largely by increasing the levels when they are too low.

In the kidney, parathyroid hormone blocks the reabsorption of phosphate in the proximal tubule while promoting calcium reabsorption in the ascending loop of Henle, distal tubule, and collecting tubule.

PTH indirectly increases calcium absorption from food in the intestine, via its effects on vitamin D metabolism.

PTH has no effect on carbohydrate metabolism.

Topic: Biology, Chemical Coordination and Integration, NEET, NEET 2022 (Phase 1)
Which of the following are not the use of Nylon 6,6?

Options:
A Brush bristles
B Sheets
C Textile Industry
D None of the above

The correct answer is:
None of the above

Solution:
Correct Option is : 4
None of the above

Topic: Chemistry, Polymers, NEET
Which of the following are not the use of PHBV?

Options:
A Ropes
B Speciality packaging
C controlled release of drug
D orthopedic devices

The correct answer is:
Ropes

Solution:
Correct Option is : 1
Ropes

Topic: Chemistry, Polymers, NEET
Which of the following are paramagnetic?

Options:
A O2
B C6H6
C ZnFe2O4
D CrO2

The correct answer is:
O2

Solution:
Correct Option is : 1
O2

Topic: Chemistry, Solid State, NEET
Which of the following are positively charged solutions Haemoglobin, Eosin, Gum, Methylene blue sol

Options:
A Haemoglobin, Gum
B Methylene Blue sol, Haemoglobin
C Eosin, Gum
D Gum, Methylene blue sol

The correct answer is:
Methylene Blue sol, Haemoglobin

Solution:
Correct Option is : 2
Methylene Blue sol, Haemoglobin

Topic: Chemistry, Surface Chemistry, NEET