datavorous/entrance-exam-dataset huggingface dataset:
Select the mismatch:

Options:
A Pinus-Dioecious
B Cycas-Dioecious
C Salvinia-Heterosporous
D Equisetum-Heterosporous

The correct answer is:
Pinus-Dioecious

Solution:
Pinus is monoecious plant having both male and female cones on same plant. Cycas is a dioecious plant, Salvina belonging to the family Salviniales of Pteridophyta, are heterosporous, producing spores of differing sizes. Equisetum belonging to the family Equisetaceae is herbaceous and homosporous.

Topic: Biology, Plant Kingdom, NEET, NEET 2017
Select the mismatch among the following.

Options:
A Chondrichthyes - Placoid scales
B Columba - Diaphragm
C Balanoglossus - Proboscis glands
D Limulus - Chitinous cuticle

The correct answer is:
Columba - Diaphragm

Solution:
Columba is the genus for large-bodied pigeons (a bird), whereas the diaphragm is a mammalian feature. Chondrichthyes is a group of cartilage fishes that possess placoid scales. Balanoglossus is member of Phylum Hemichordata having proboscis glands as excretory organs. Limulus is an arthropod having chitinous cuticle.

Topic: Biology, Animal Kingdom, NEET
Select the mismatch from the following.

Options:
A Helix - Organ system level of organization
B Asterias - Presence of water vascular system
C Neries - Excretion by flame cells
D Eye worm - Pseudocoelomate

The correct answer is:
Neries - Excretion by flame cells

Solution:
Neries - It is an annelid and excretion occurs by nephridia. Helix is a land snail, Asterias is starfish and eye worm (Loa loa) is a nemathelminth.

Topic: Biology, Animal Kingdom, NEET
Select the mismatch.

Options:
A AIDS â ELISA test (Diagnosis)
B Filariasis â Wuchereria (Causative organism)
C Malaria â Anopheles mosquito (Causative agent)
D Ringworm â Dry, Scaly lesions on skin (Symptoms)

The correct answer is:
Malaria – Anopheles mosquito (Causative agent)

Solution:
ELISA (Enzyme-Linked Immunosorbent Assay) is a preliminary test for AIDS while Western Blot is confirmatory test. Wuchereria is the causative organism of Filariasis or elephantiasis. Ringworm is a fungal infection commonly caused by a fungus of Genus - Microsporum, Trichophyton, and Epidermophyton (fungi).

Topic: Biology, Human Health and Diseases, NEET
Select the mismatched pair.

Options:
A FSH secretion - stimulate Sertoli cells
B Secretion of relaxin in the later phase of pregnancy - Human placenta
C Diaphragms, cervical caps and vaults - Physical barriers of contraception
D Human egg - Fertilization in fallopian tube.

The correct answer is:
Secretion of relaxin in the later phase of pregnancy - Human placenta

Solution:
Placenta also act as an endocrine tissue and produces following hormones :
A. Human chorionic gonadotropin (hCG). B. Human placental lactogen (hPL).
C. Estrogens. D. Progestogens.
The placenta is connected to the embryo through umbilical cord.
Ovary produces relaxin hormone in the later phase of pregnancy.
Hormones produced in women only during pregnancy: hCG, hPL and relaxin.
Hormones that are increased in concentration (by several folds) in maternal blood during pregnancy: Estrogens, progestogens, cortisol, prolactin, thyroxine, etc.

Topic: Biology, Human Reproduction, NEET
Select the mismatched pair.

Options:
A Semicircular canals - Internal ear
B Corpus callosum - Cerebral hemispheres
C Cranial nerves - Myelinated
D Rhodopsin - Visual violet

The correct answer is:
Rhodopsin - Visual violet

Solution:
Membranous labyrinth includes cochlea and vestibular apparatus (saccule + utricle + 3 semicircular canals). Corpus callosum is a tract of nerve fibres by which the hemispheres are connected with each other. Myelinated nerve fibres are commonly found in CNS and are far more common than non-myelinated neurons. In PNS (peripheral nervous system), spinal and cranial nerves also have myelinated nerve fibres. Pigments in photoreceptors - Rhodopsin (or visual purple) in rods and iodopsin (or visual violet) in cones.

Topic: Biology, Neural Control and Coordination, NEET
Select the molecule/s which cannot act as inducer in Lac operon.

Options:
A Glucose
B Lactose
C Galactose
D Both (1) and (3)

The correct answer is:
Both (1) and (3)

Solution:
Lactose is the substrate for the enzyme β -galactosidase (one of the key enzymes in Lac operon) and also regulates the switching on and off of the operon and therefore, act as the inducer.

Topic: Biology, Molecular Basis of Inheritance, NEET
Select the most stable carbocation:

Options:
A
B
C
D

The correct answer is:

Solution:
It is stabilized by resonance. Resonance in (D) is maximum with involvement of lone pair of oxygen.

Topic: Chemistry, General Organic Chemistry, NEET
Select the name of the given organism.

Options:
A Dinoflagellates
B Euglena
C Slime mould
D Paramoecium

The correct answer is:
Euglena

Solution:
In Euglena, instead of a cell wall, they have a protein rich layer called pellicle which makes their body flexible. They have two flagella, a short and a long one.

Topic: Biology, Biological Classification, NEET
Select the name of the given organism.

Options:
A Dinoflagellates
B Euglena
C Slime mould
D Paramoecium

The correct answer is:
Slime mould

Solution:
Slime moulds are saprophytic protists. The body moves along decaying twigs and leaves engulfing organic material.

Topic: Biology, Biological Classification, NEET
Select the name of the given organism.

Options:
A Dinoflagellates
B Euglena
C Slime mould
D Paramoecium

The correct answer is:
Dinoflagellates

Solution:
In dinoflagellates, the cell wall has stiff cellulose plates on the outer surface. Most of them have two flagella; one lies longitudinally and the other transversely in a furrow between the wall plates.

Topic: Biology, Biological Classification, NEET
Select the name of the type of root present in the following figure.

Options:
A Tap Root
B Fibrous Root
C Adventitious Root
D None of the above

The correct answer is:
Tap Root

Solution:
The figure is of Tap Root.

Topic: Biology, Morphology of Flowering Plants, NEET
Select the name of the type of root present in the following figure.

Options:
A Tap Root
B Fibrous Root
C Adventitious Root
D None of the above

The correct answer is:
Fibrous Root

Solution:
The figure is of Fibrous Root.

Topic: Biology, Morphology of Flowering Plants, NEET
Select the name of the type of root present in the following figure.

Options:
A Tap Root
B Fibrous Root
C Adventitious Root
D None of the above

The correct answer is:
Adventitious Root

Solution:
The figure is of Adventitious Root.

Topic: Biology, Morphology of Flowering Plants, NEET
Select the neuroendocrine process or mechanism from the mentioned reproductive events.

I. Parturition

II. Lactation

III. Menstrual cycle

Options:
A I and II
B II and III
C Only I
D I, II and III

The correct answer is:
I, II and III

Solution:
Parturition is induced by a complex neuroendocrine mechanism in which by fetal ejection reflex it triggers the release of oxytocin from the maternal pituitary. Lactation is also a neuroendocrine process in which after child birth, oxytocin is released to eject milk to feed the newborn. The menstrual cycle also is the neuroendocrine process which is dependent of the HPG axis.

Topic: Biology, Human Reproduction, NEET
Select the nucleosides.

(I) Adenosine

(II) Uridylic acid

(III) Uridine

(IV) Cytidylic acid

Options:
A I and II only
B I and III only
C III and IV only
D II and III only

The correct answer is:
I and III only

Solution:
Nucleosides are molecules that contain two components – 5C -sugar molecule and a nitrogen base. Adenosine and uridine are nucleoside having ribose sugar attached to the adenine and uracil nitrogen bases. Uridylic acid and cytidylic acid are nucleotides where phosphate is attached to the nucleoside.

Topic: Chemistry, Biomolecules, NEET
Select the number of correct statements from the following:

I. Cell-plate formation occurs in plant cell during cytokinesis.

II. During cytokinesis mitochondria and plastid gets distributed between two daughter cells in mitosis.

III. Liquid endosperm in coconut is syncytium.

IV. Furrow formation occurs in animal cell during cytokinesis.

Options:
A 1
B 2
C 3
D 4

The correct answer is:
4

Solution:
In plant cell cytokinesis occurs by cell plate and in animal cell it occurs by cell furrow or groove formation. Liquid endosperm of coconut is formed by free nuclear division in which karyokinesis is not followed by cytokinesis forming multi nucleate condition called syncitium.

Topic: Biology, Cell Cycle and Cell Division, NEET
Select the number of plants having epipetalous stamens.

Moong, Sesbania, Lupin, Tomato, Muliathi, Soyabean, Petunia, Gram, Arhar, Tobacco, Tulip, Aloe, Colchicum, Asparagus, Chilli, Sunhemp

Options:
A 3
B 6
C 5
D 4

The correct answer is:
4

Solution:
When stamens are attached to petals then it is called an epipetalous condition. Epipetalous stamens are present in members of Solanaceae family like tomato, petunia, tobacco, and chilli.

Topic: Biology, Morphology of Flowering Plants, NEET
Select the odd one among the following options about the least possible adverse effect of global warming.

Options:
A Retreat of glaciers
B An increase of UV-B radiation
C Sea-level rise
D Extraordinary weather patterns

The correct answer is:
An increase of UV-B radiation

Solution:
Global warming occurs when carbon dioxide (CO2), air pollutants, and greenhouse gases get collected in the atmosphere and absorb sunlight and solar radiation that have bounced off the earth's surface. Generally, this radiation would escape into space, but these pollutants can last from years to centuries in the atmosphere, they trap the heat and cause the planet to get hotter.

Topic: Biology, Environmental Issues, NEET
Select the odd one from the following and select the correct option.

Options:
A Ptyalin
B Maltase
C Lactase
D Sucrase

The correct answer is:
Ptyalin

Solution:
Ptyalin (salivary amylase), maltase, lactase, and sucrase are all digestive enzymes. Salivary amylase acts on starch and gives only one by-product i.e. maltose. The enzymes maltase, lactase and sucrase act on maltose, lactose and sucrose respectively. Maltose, lactose and sucrose are broken up by these enzymes to produce two molecules of glucose, one molecule of glucose and one molecule of galactose, one molecule of glucose and one molecule of fructose respectively.
Hence, all enzymes except salivary amylase give two by-products by acting on their substrate and acts on disaccharides. Thus, it is an odd one.

Topic: Biology, Digestion and Absorption, NEET
Select the odd one from the following.

Options:
A Anabaena
B Nostoc
C Oscillatoria
D Rhizobium

The correct answer is:
Rhizobium

Solution:
Rhizobium is a Gram-negative bacteria that fix atmospheric nitrogen in the leguminous plants.
Cyanobacteria are autotrophic microbes widely distributed in aquatic and terrestrial environments many of which can fix atmospheric nitrogen, e.g. Anabaena, Nostoc, Oscillatoria, etc. In paddy fields, cyanobacteria serve as an important biofertilizer. Blue-green algae also add organic matter to the soil and increase its fertility.

Topic: Biology, Microbes in Human Welfare, NEET
Select the odd one out from the options.

Options:
A Cyclostomata
B Chondrichthyes
C Petromyzon
D Myxine

The correct answer is:
Chondrichthyes

Solution:
Apart from Chondrichthyes, rest animals belong to division-gnathostomata.

Topic: Biology, Animal Kingdom, NEET
Select the odd one out with respect to increased or decreased secretion of hormones.

Options:
A Diabetes mellitus
B Grave's disease
C Cretinism
D Addison's disease

The correct answer is:
Grave's disease

Solution:
Diabetes mellitus is due to hyposecretionof Insulin hormone.
Cretinism is due to deficiency/hyposecretionof thyroid hormone.
Addison's disease is due to hyposecretion of Adrenocorticoid hormones.
Grave's disease or exopthalmic goitre is due to hyperthyroidism.

Topic: Biology, Chemical Coordination and Integration, NEET
Select the odd one with respect to long-day plants.

Options:
A Poppy
B Sunflower
C Wheat
D Radish

The correct answer is:
Sunflower

Solution:
The term long-day describes plants that begin forming flower buds when the days are longer than their critical day length (e.g., spinach, wheat, radish, beet, lettuce, mentha, poppy are examples of long-day plants). Sunflower is a day-neutral plant.

Topic: Biology, Plant - Growth and Development, NEET
Select the odd one with respect to the chemical nature of a hormone?

Options:
A Peptide and polypeptide
B Steroid and iodothyronine
C Steroids and amino acid derivative
D Nucleic acid derivatives

The correct answer is:
Nucleic acid derivatives

Solution:
Chemically, the hormone may be a peptide, polypeptide (insulin), steroid (cortisol), iodothyronine (thyroid hormones) or amino acid derivative (epinephrine).

Topic: Biology, Chemical Coordination and Integration, NEET
Select the odd one with respect to the functional aspect of the ecosystem.

Options:
A Decomposition
B Energy flow
C Nutrient cycling
D Species composition

The correct answer is:
Species composition

Solution:
The interaction of biotic and abiotic components results in a physical structure that is characteristic for each type of ecosystem. Important structural features include:

Species Composition: It is the identification and enumeration of animal and plant species of an ecosystem. For example, the tropical rain forest is dense with an amazing number of biological species. On the other hand, vegetation is sparse in the desert ecosystem.

Stratification: The vertical distribution of different species occupying different levels is called stratification.

The functional components of ecosystem are productivity, decomposition, energy flow, and nutrient cycling.

Topic: Biology, Ecosystem, NEET
Select the one that is not related to osteoarthritis.

Options:
A In osteoarthritis, large weight-bearing joints are affected.
B The articular cartilages get eroded.
C It is a degenerative joint disease occurring in the late middle age.
D It is caused due to excessive formation of uric acid.

The correct answer is:
It is caused due to excessive formation of uric acid.

Solution:
Gradual decrease in the bone mass can lead to loss of bone cells at the joints. The outer covering-cartilage- at the joint is reduced leading to inflammation and pain which is called as osteoarthritis. This can happen due to old-age or due to regular wear and tear. Sometimes, accumulation of uric acid around joints leads to inflammation. Such inflammation and pain is called a gout.

Topic: Biology, Locomotion and Movement, NEET
Select the one that supports the dissociation of oxyhaemoglobin in tissues.

Options:
A High pO2
B Low pO2
C Equal pO2
D Not dependent on pO2

The correct answer is:
Low pO2

Solution:
To maximize exchange of O2 with CO2 , the tissues have low partial pressure for oxygen and high partial pressure for carbon dioxide. Also, to fa cilitate dissociation of oxyhaemoglobin the hydrogen ion concentration is on the higher side as it discourages binding of Hb to O2 .

Topic: Biology, Breathing and Exchange of Gases, NEET
Select the option from the following that relates to the statement given:

"The mass of living material at a trophic level at a particular time."

Options:
A Gross primary productivity
B Standing state
C Net primary productivity
D Standing crop

The correct answer is:
Standing crop

Solution:
Standing crop is the total amount of living material in a specified population at a particular time, generally expressed as biomass. The standing crop may show variation at different times of the year.
Net Primary Productivity (NPP) is the rate at which plants incorporate atmospheric carbon through photosynthesis. (Definition)
Gross primary production (GPP) is the rate at which an ecosystem's producers capture and store a given amount of chemical energy as biomass in a given length of time. (Definition)

Topic: Biology, Ecosystem, NEET
Select the option having all correct statements.

a ER divide the intercellular space into two distinct compartments.

b The cis and the trans face of the Golgi body are entirely different but interconnected.

c Lysosomes are the single membrane-bound vesicular structures formed by the process of packaging in the Golgi body.

d In plant cells, the vacuole can occupy up to 90 percent of the volume of the cell.

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

The correct answer is:
a,b,c and d

Solution:
ER divide the intercellular space into two distinct compartments, luminal chamber and extra luminal chamber. Cis and trans face of golgi body are entirely different but interconnected. Lysosomes are formed by golgi body. Vacuole in a plant cell can occupy upto 90 % volume.

Topic: Biology, Cell - The Unit of Life, NEET
Select the option having the fungi which belong to the same class

Options:
A Agaricus and Aspergillus
B Rhizopus and Yeast
C Morchella and Saccharomyces
D Mucor and Yeast

The correct answer is:
Morchella and Saccharomyces

Solution:
Rhizopus and Mucor are members of Phycomycetes. Aspergillus, Saccharomyces (yeast), Morchella (morels) are Ascomycetes fungi. Agaricus (Mushroom) contains edible Basidiomycetes fungi. Morchella, commonly called as morels, are edible Ascomycetes fungi.

Topic: Biology, Biological Classification, NEET
Select the option including all sexually transmitted diseases.

Options:
A Gonorrhoea, Malaria, Genital herpes
B AIDS, Malaria, Filaria
C Cancer, AIDS, Syphilis
D Gonorrhoea, Syphilis, Genital herpes

The correct answer is:
Gonorrhoea, Syphilis, Genital herpes

Solution:
SEXUALLY TRANSMITTED DISEASES (STDs):
The diseases which are primarily transmitted through sexual intercourse are called sexually transmitted diseases (STD) or venereal diseases (VD) or reproductive tract infections (RTI). STDs are found across all age groups but are more prevalent in organisms of age 15-24 years.

Examples:

Bacterial STD diseases: Gonorrhoea, Syphilis, Chlamydiosis.

Protozoan STD diseases: Trichomoniasis.

Viral STD diseases: AIDS, Genital herpes, Genital warts, Hepatitis, etc.

Topic: Biology, Reproductive Health, NEET, NEET 2020 (Phase 1)
Select the option regarding the BOD (Biochemical Oxygen Demand) of sewage (S), distillery effluent (DE), paper mill effluent (PE) and sugar mill effluent (SE) that have been arranged in ascending order?

Options:
A SE<PE<S<DE
B S<PE<SE<DE
C S<DE<PE<SE
D SE<S<PE<DE..

The correct answer is:
S<PE<SE<DE

Solution:
The more the value of BOD of the water sample the more will be the pollution by organic matter. BOD of distillery effluent will be approximately 40000 mg/L, sugar mill effluent BOD value will be around 3480mg/L and that of paper mill effluent and sewage is 190 mg/L and 30 mg/L respectively.

Topic: Biology, Environmental Issues, NEET
Select the option regarding the tissues that are grouped under the ground tissues?

Options:
A all tissues internal to endodermis
B all tissues external to endodermis
C all tissues except epidermis and vascular bundles
D epidermis and cortex

The correct answer is:
all tissues except epidermis and vascular bundles

Solution:
All tissues except epidermis and vascular bundles constitute the ground tissue. It consists of simple tissues such as parenchyma, collenchyma and sclerenchyma. Parenchymatous cells are usually present in cortex, pericycle, pith and medullary rays, in the primary stems and roots. In leaves, the ground tissue consists of thin-walled chloroplast containing cells and is called mesophyll.

Topic: Biology, Anatomy of Flowering Plants, NEET
Select the option that correctly describes ECG phase.

Options:
A P- wave - Depolarisation of the ventricles.
B P-wave - Depolarisation of the AV node
C QRS wave -Depolarisation of the ventricles
D T-wave â Depolarisation of the atria

The correct answer is:
QRS wave -Depolarisation of the ventricles

Solution:
Each peak in the ECG is identified with a letter from P to T that corresponds to a specific electrical activity of the heart.

The P-wave represents the electrical excitation (or depolarisation) of the atria, which leads to the contraction of both the atria.

The QRS complex represents the depolarisation of the ventricles, which initiates the ventricular contraction. The contraction starts shortly after Q and marks the beginning of the systole.

The T-wave represents the return of the ventricles from excited to normal state (repolarisation). The end of the T-wave marks the end of systole.

Topic: Biology, Body Fluids and Circulation, NEET
Select the option that correctly represents: Coding sequence of DNA and Non- coding sequence of DNA, respectively.

Options:
A exon, intron
B intron, exon
C cistron, exon
D exon, cistron

The correct answer is:
exon, intron

Solution:
Gene is a segment of DNA that contains the code for making proteins. In eukaryotes the gene are split, where the coding sequence called as exon is interrupted by non-coding sequence called as introns. The mRNA transcribed undergoes splicing to remove the introns.

Topic: Biology, Molecular Basis of Inheritance, NEET
Select the option that is correct with respect to Trypanosoma.

Options:
A They are flagellated protozoans.
B They are parasites.
C They cause sleeping sickness.
D All of the above

The correct answer is:
All of the above

Solution:
Flagellated protozoans are either free-living or parasitic. They have flagella. The parasitic forms cause diseases such as sleeping sickness. Example: Trypanosoma.

Topic: Biology, Animal Kingdom, NEET
Select the option that shows the correct number of chromosomes in the meiocytes.

Options:
A Maize - 20
B Pisum sativum - 7
C Ophioglossum - 630
D Potato - 24

The correct answer is:
Maize - 20

Solution:
The cell which undergoes meiosis is called meiocytes. Ploidy of meiocytes is always 2n. Ophioglossum is a Pteridophyta having chromosome number 2n = 1260, Potato 2n = 48, Pisum sativum 2n = 14.

Topic: Biology, Reproduction in Organisms, NEET
Select the option that was not used in Green revolution.

Options:
A Agrochemical based agriculture
B Conventional plant breeding and hybridization
C Agriculture using high yielding varieties
D Genetically engineered crop-based agriculture

The correct answer is:
Genetically engineered crop-based agriculture

Solution:
Green revolution succeeded in tripling the food supply. Increased yields have been due to the use of improved crop varieties, along with the use of better management practices and agrochemicals. Genetically modified crops were created much after green revolution.

Topic: Biology, Strategies for Enhancement in Food Production, NEET
Select the option which correctly describes the types of diseases with its examples mentioned below:

Options:
A Protozoan: Malaria, amoebiasis, cholera
B Bacterial: Typhoid, kala-azar, leprosy
C Viral: Dengue, chikungunya, covid
D Helminthic: Ascariasis, elephatiasis, ring worm

The correct answer is:
Viral: Dengue, chikungunya, covid

Solution:
Protozoan diseases include malaria, amoebiasis, kala-azar, and sleeping sickness. Bacterial diseases include typhoid, cholera, leprosy, etc. Helminthic diseases include ascariasis, ancylostomiasis, elephantiasis, etc. Viral diseases are dengue, chikungunya, and COVID.

Topic: Biology, Human Health and Diseases, NEET