datavorous/entrance-exam-dataset huggingface dataset:
All of the following are tiger subspecies which have recently gone extinct, except

Options:
A Quagga
B Javan
C Bali
D Caspian

The correct answer is:
Quagga

Solution:
Quagga was a subspecies of plain zebra that lived in South Africa. It was extinct in late 19th century. There are many organisms that became extinct like Dodo, Steller Sea Cow, Thylacine, etc.

Topic: Biology, Biodiversity and its Conservation, NEET
All of the following can be found in the female cockroach, except

Options:
A fat body
B gonapophyses
C anal styles
D vestibulum

The correct answer is:
anal styles

Solution:
Female cockroach differs from the male cockroach in may features -
- The body of male cockroach is relatively smaller than the female cockroach
- The antennae of female is larger than in males.
- Boat shaped abdomen is present in female cockroach and its last segment is blunt.
- The wing size of female cockroach is not as large as that of the males and extend up to the tip of the abdomen.
- The 10th segment bears a pair of jointed filamentous structures called anal cerci found in both sexes and the males bear a thread like small structure called as anal styles (caudal style). This is absent in the female.

Topic: Biology, Structural Organisation in Animals, NEET
All of the following cells are examples of cellular barriers, except

Options:
A Natural killer cells (NK cells)
B Macrophages
C Lymphocytes
D Neutrophils

The correct answer is:
Lymphocytes

Solution:
Cellular barriers of innate immunity include cells like neutrophils, monocytes, macrophages and natural killer cells. The specialized lymphocytes such as T-cells and B-cells come under specific or acquired immunity.

Topic: Biology, Human Health and Diseases, NEET
All of the following contributed to Mendel's success, except

Options:
A Mendel's selection of pea plant for experiments
B Application of mathematical knowledge
C Working on small sampling size at a time
D Taking one character at a time.

The correct answer is:
Working on small sampling size at a time

Solution:
Mendel succeeded in experiments because of the following reasons:
A. He has taken a large sampling size to obtain a higher accuracy (quantitative analysis).
B. He had done a statistical analysis and applied mathematical logic to extract the results.
C. He also performed the same experiments with the successive generations so that his inferences from experiments should take the shape of general rules of inheritance.
D. He has taken different characters independently in hybridisation experiments to generalized the results.

Topic: Biology, Principles of Inheritance and Variation, NEET
All of the following factors are favourable for the formation of oxyhaemoglobin, except

Options:
A High pO2
B Less H+ ions concentration
C Low pH
D Low Temperature

The correct answer is:
Low pH

Solution:
In the lung alveoli, where there is high partial pressure of oxygen pO2, low pCO2, lesser H+ ion concentration (high pH) and lower temperature are all favourable factors to promote binding of oxygen with haemoglobin to form oxyhaemoglobin at the time of external respiration.

Topic: Biology, Breathing and Exchange of Gases, NEET
All of the following features are associated with myosin head of heavy meromyosin (HMM) of muscle protein, except

Options:
A Myosin binding site
B ATP binding site
C Actin binding site
D ATPase enzyme activity

The correct answer is:
Myosin binding site

Solution:
Myosin protein has two components: heavy meromyosin (HMM) and light meromyosin (LMM). HMM has high molecular weight and consists of globular myosin head and short arm, together called cross arm which helps in the formation of cross-bridges with actin proteins after hydrolysis of ATP.

Topic: Biology, Locomotion and Movement, NEET
All of the following have epigynous and perigynous ovary, except ____

Options:
A Guava and rose
B Ray florets of Helianthus and plums
C China rose and brinjal
D Cucumber and peach

The correct answer is:
China rose and brinjal

Solution:
In this case, the flower is said to be hypogynous, e.g., China rose, mustard, brinjal, potato, onion and tulip. Guava and cucumber have inferior ovaries or epigynous flowers.

Topic: Biology, Morphology of Flowering Plants, NEET
All of the following hormones are released from GIT except:

Options:
A Gastrin
B CCK
C Erythropoetin
D Secretin

The correct answer is:
Erythropoetin

Solution:
The juxtaglomerular cells of kidney produce a peptide hormone called erythropoietin which stimulates erythropoiesis (formation of RBC). Endocrine cells present in different parts of the gastro-intestinal tract secrete four major peptide hormones, namely gastrin, secretin, cholecystokinin (CCK) and gastric inhibitory peptide (GIP).

Topic: Biology, Chemical Coordination and Integration, NEET
All of the following processes can release CO2, except _________.

Options:
A alcoholic fermentation
B oxidative decarboxylation and Krebs' cycle
C oxidative phosphorylation
D conversion of α -ketoglutaric to succinic acid

The correct answer is:
oxidative phosphorylation

Solution:
In the process of oxidative phosphorylation, the production of ATP occurs by utilizing electrons from hydrogen to oxygen. They don't lead to the production of carbon dioxide molecules. So the correct answer is C. In all other processes carbon dioxide is released.

Topic: Biology, Respiration in Plants, NEET
All of the following processes occur in the endomembrane system, except

Options:
A aerobic respiration
B protein glycosylation
C excretion
D synthesis of lipid-like steroidal hormones

The correct answer is:
aerobic respiration

Solution:
The endomembrane system include endoplasmic reticulum (ER), golgi complex, 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.
Mitochondria are the sites of aerobic respiration. They produce cellular energy in the form of ATP, hence they are called âpower housesâ of the cell. The matrix also possesses single circular DNA molecule, a few RNA molecules, ribosomes (70S) and the components required for the synthesis of proteins.
The smooth endoplasmic reticulum is the major site for synthesis of lipid. In animal cells lipid-like steroidal hormones are synthesised in SER.
Protein synthesis and its modification process are carried out by the organelles of endoplasmic system. Golgi apparatus is the important site of formation of glycoproteins and glycolipids.
In Amoeba, the contractile vacuole is important for excretion. In many cells, as in protists, food vacuoles are formed by engulfing the food particles.

Topic: Biology, Cell - The Unit of Life, NEET
All of the following statements are incorrect about a monocot stem, except

Options:
A hypodermis of monocot stem is made up of multiple layers of parenchyma
B vascular bundles are surrounded by sclerenchymatous bundle sheath .
C the vascular cylinder is surrounded by a parenchymatous pericycle in monocot stem
D peripheral vascular bundles are generally larger than the centrally located ones.

The correct answer is:
vascular bundles are surrounded by sclerenchymatous bundle sheath .

Solution:
The monocot stem has a sclerenchymatous hypodermis, a large number of scattered vascular bundles, each surrounded by a sclerenchymatous bundle sheath, and a large, conspicuous parenchymatous ground tissue. It doesn't have pericycle. Vascular bundles are conjoint and closed. Peripheral vascular bundles are generally smaller than the centrally located ones.

Topic: Biology, Anatomy of Flowering Plants, NEET
All of the following statements concerning the actinomycetous filamentous soil bacterium Frankia are correct except that Frankia:

Options:
A can induce root nodules on many plant species
B can not fix nitrogen in the free-living stale
C can not fix specialized vesicles in which the nitrogenase is protected from oxygen by a chemical barrier involving triterpene hopanoids
D like Rhizobium, it usually infects its host plant through root hair deformation and stimulates cell proliferation in the host's cortex.

The correct answer is:
can induce root nodules on many plant species

Solution:
Frankia is a genus of filamentous, nitrogen-fixing bacterium and it forms a symbiotic relationship with many plants. It causes root hair deformation in a way that it enters the cortical cells and induces the nodule formations, which look like those induced by Rhizobium in legumes. It is associated symbiotically with the root nodules of several non-legume plants like Casuarina, Alnus, Rubus etc. It cannot fix nitrogen in free state.

Topic: Biology, Mineral Nutrition, NEET, NEET 2005
All of the following structure are paired in male reproductive system, except:

Options:
A Seminal vesicles and Cowper's gland
B Prostate gland and urethra
C Ejaculatory duct and Epididymis
D Bulbo-urethral gland and Vas deferens

The correct answer is:
Prostate gland and urethra

Solution:
In males, seminal vesicles and bulbourethral or Cowper's glands are paired accessory glands. The prostate gland is a single, unpaired chestnut shape gland. Epididymis and Vas deferens are paired male accessory genital ducts.

Topic: Biology, Human Reproduction, NEET
All of the following structure in a cockroach has jointed segmental or filamentous structure except;

Options:
A Anal style
B Anal cerci
C Antenna
D Walking legs

The correct answer is:
Anal style

Solution:
In male cockroach a pair of short, sensitive, unjointed, and thread-like structures called anal style is present. This structure helps in the process of copulation. Antenna, anal cerci and walking legs are all jointed segmental or filamentous structures.

Topic: Biology, Structural Organisation in Animals, NEET
All organisms are âawareâ of their surroundings. Hence, all organisms can

Options:
A handle chemicals entering their bodies
B be self-replicating, evolving, and self-regulating
C arise as a result of interactions among the molecular components
D be linked to one another by the sharing of the common genetic material

The correct answer is:
handle chemicals entering their bodies

Solution:
All organisms handle chemicals entering their bodies. All organisms, therefore, are ‘aware’ of their surroundings. A human being is the only organism who is aware of himself, i.e., has self-consciousness. Consciousness, therefore, becomes the defining property of living organisms.

Topic: Biology, The Living World, NEET
All stages of Plasmodium are digested in the stomach of the female Anopheles, except

Options:
A sporozoites
B gametocytes
C erythrocytes
D merozoites

The correct answer is:
gametocytes

Solution:
While female Anopheles suck the infected blood then various phases of malaria parasite are reach in their stomach, where digestive enzyme, digest all phases besides gametocyte.

Topic: Biology, Human Health and Diseases, NEET
All statements about aqueous humor are false, except

Options:
A It is located between cornea and the lens, and it is a thin watery fluid
B It is located between lens and retina and it is similar to CSF.
C It is located between cornea and lens, and it is thick and viscous.
D It is located between lens and retina and it is thin watery fluid.

The correct answer is:
It is located between cornea and the lens, and it is a thin watery fluid

Solution:
The lens divides the eye into two chambers and both the chambers are filled with fluid. The anterior chamber that lies between lens and cornea is known as Aqueous chamber and the posterior chamber between lens and retina is known as Vitreous chamber. Aqueous chamber contains watery fluid that drains into canal of Schelmm and hence this fluid is replaced continuously. Vitreous fluid is jelly like and it cannot be replaced.

Topic: Biology, Neural Control and Coordination, NEET
All statements about electrical synapses are correct except

Options:
A The membranes of pre-and post synaptic neurons are in very close proximity
B Transmission of impulse across this synapse is very similar to impulse conduction along a single axon
C Impulse transmission is always faster than that across a chemical synapse
D Electrical synapses are very common in our body

The correct answer is:
Electrical synapses are very common in our body

Solution:
Nerve impulses are transmitted from one neuron to another through junctions called synapses. A synapse is formed by the membranes of a pre-synaptic neuron and a post-synaptic neuron, which may or may not be separated by a gap called the synaptic cleft. Synapses are of two types electrical and chemical. In electrical synapses, the membranes of pre and postsynaptic neurons are in close proximity. The electrical current can flow directly from one neuron to another. Transmission of an impulse across electrical synapses is very similar to impulse conduction along a single axon and is faster than that across a chemical synapses. Electrical synapses are rare in our system.

Topic: Biology, Neural Control and Coordination, NEET
All successions irrespective of the habitat proceed to which type of climax community?

Options:
A Xeric
B Mesic
C Hydrophytic
D Edaphic

The correct answer is:
Mesic

Solution:
All succession, either started from water body or sand, leads to the Mesic condition.

Topic: Biology, Ecosystem, NEET, NEET 2022 (Phase 2)
All the bulbs below are identical. Which bulb(s) shine(s) most brightly?

Options:
A 1 only
B 2 only
C 3 and 4
D 1 and 5

The correct answer is:
1 and 5

Solution:
Current in bulb 1 and 5 are maximum and resistance are same. So these bulbs glow with more brightness.

Topic: Physics, Current Electricity, NEET
All the changes that organisms go through in their lifetime are called ___

Options:
A growth
B differentiation
C development
D dedifferentiation

The correct answer is:
development

Solution:
All the changes that organisms go through in their lifetime are called development

Topic: Biology, Plant - Growth and Development, NEET
All the edges of a block with parallel faces are unequal. Its largest edge is twice its shortest edge. The ratio of the maximum to the minimum resistance between parallel faces is

Options:
A 8
B 4
C 2
D 1

The correct answer is:
4

Solution:
Let the length of various edges in increase order be l,x,2l respectively
Rmax=Ï2lxl=2Ïx;Rmin=Ïl2lx=Ï2x
â´ RmaxRmin=4

Topic: Physics, Current Electricity, NEET
All the following are characterized by hypothyroidism, except

Options:
A weight gain
B bradycardia
C heat intolerance
D decreased metabolic rate

The correct answer is:
heat intolerance

Solution:
Hypothyroidism means hyposecretion of thyroid hormones ( T3 and T4 ). Thus levels of TSH increases. Since thyroid hormones are less metabolism does not take place and as a result patient experiences weight gain. This also causes bradycardia i.e. decreases heartbeat. Heat intolerance is the symptom of hyperthyroidism.

Topic: Biology, Chemical Coordination and Integration, NEET
All the following are correct about enzymes, except:

Options:
A Lower the energy of activation of a reaction
B Make the equilibrium more favourable for the organism
C Lower the energy of product and increases the energy of reactant
D Are altered permanently in the reaction they catalyse

The correct answer is:
Lower the energy of activation of a reaction

Solution:
Enzyme act by decreasing the activation energy so that the number of activated molecules is increased at lower energy level.

Topic: Chemistry, Biomolecules, NEET
All the following are correct, except:

Options:
A i-gene codes for the repressor of lac operon
B z-gene codes for the beta-galactosidase
C y-gene codes for transacetylase
D three gene products are required for metabolism of lactose

The correct answer is:
y-gene codes for transacetylase

Solution:
In Lac operon, i-gene or regulator gene codes for repressor protein which binds to operator and prevents the transcription of structural gene. There are three structural gene, z-gene codes for beta-galactosidase. Y-gene codes for permease and a-gene codes for transacetylase. All three gene product are required for metabolism of lactose.

Topic: Biology, Molecular Basis of Inheritance, NEET
All the following are examples of commensalism except:

Options:
A Orchid on mango branch
B Cattle egret and grazing cattle
C Sea anemone and clown fish
D Cuckoo (Koel) and crow

The correct answer is:
Cuckoo (Koel) and crow

Solution:
Commensalism is the interaction in which one organism is benefited at the other organism is not affected by the interaction. It is (+, 0 ) interaction. Cuckoo and crow show a type of interaction called as brood parasitism, in which cuckoo is benefitted and crow is harmed thus it is not commensalism.

Topic: Biology, Organisms and Populations, NEET
All the following are included in 'ex situ conservation' except

Options:
A Botanical gardens
B Sacred groves
C Wildlife safari parks
D Seed banks

The correct answer is:
Sacred groves

Solution:
Botanical gardens, wildlife safari parks, and seed banks are part of ex situ conservation except for sacred groves. Sacred groves are a part of in situ conservation as they are meant to protect species within their natural habitat.

Topic: Biology, Biodiversity and its Conservation, NEET, NEET 2018
All the following are the features of inhibin hormone, except:

Options:
A Its secretion increases with increase in the number of spermatozoa.
B It stimulates FSH secretion in males
C It is secreted by Sertoli cells
D It is a non-steroidal hormone.

The correct answer is:
It stimulates FSH secretion in males

Solution:
Sertoli cells produce a glycoprotein called inhibin. lnhibin suppresses FSH synthesis by anterior pituitary and GnRH synthesis by hypothalamus. Thus normal release of testosterone is under negative feedback control.

Topic: Biology, Human Reproduction, NEET
All the following are the functions controlled by the centres in the medulla oblongata, except

Options:
A Intelligence
B Respiration
C Cardiovascular reflexes
D Gastric secretions

The correct answer is:
Intelligence

Solution:
The medulla is connected to the spinal cord. It possesses important centers for:
A. Respiration. B. Cardiovascular reflexes. C. Gastric secretions.
The seat for intelligence is forebrain.

Topic: Biology, Neural Control and Coordination, NEET
All the following factors are favourable for the formation of oxyhaemoglobin, except

Options:
A Low CO2
B Low H+ concentration
C Low O2 tension
D Low temperature

The correct answer is:
Low O2 tension

Solution:
Oxygen binds with haemoglobin in a reversible manner to form Oxyhaemoglobin. A maximum of four oxygen molecules are carried by each Hb. The binding of oxygen is related to partial pressure of O2 where as partial pressure of CO2 , hydrogen ion concentrationand temperature are factors interfering with its binding. The factors which are favourable for formation of oxyhaemoglobin in the alveoli are high pO2 , lesser H+ concentration, low pCO2 and lower temperature. The low pO2 , high pCO2 , high H+ concentration and higher temperature in the tissues are all the conditions leading to dissociation of oxygen from the oxyhaemoglobin. This indicates that oxygen is bounded to haemoglobin in the lung and dissociated in the tissues.

Topic: Biology, Breathing and Exchange of Gases, NEET
All the following involves osmosis, except

Options:
A Water entering from soil to root hair
B Water passing from root hair to adjacent cells
C Water movement into the xylem vessel element.
D Water entering a mesophyll cell from xylem vessel element

The correct answer is:
Water movement into the xylem vessel element.

Solution:
In xylem vessels, the water rises due to the transpiration pull and the cohesive power of water molecules, and not osmosis.

Topic: Biology, Transport in Plants, NEET
All the following is correct about mycorrhizae, except:

Options:
A Enhancing its phosphorus uptake capacity
B Increasing its tolerance to drought
C Enhancing its resistance to root pathogens
D Increasing its resistance to insects.

The correct answer is:
Increasing its resistance to insects.

Solution:
Mycorrhizae is a mutual relationship between fungi and roots of higher plant. Both benefit from each other. In it, the fungus colonises the root system of the host plant either intracellularly or extracellularly. The fungal group is known to absorb phosphorus from soil and pass it to the host plant. Such associations also provide other benefits like resistance to root-borne pathogens, tolerance to salinity and drought. Although, this symbiosis provides no protection from insect invasion.

Topic: Biology, Microbes in Human Welfare, NEET
All the following options regarding blood transfusion is incorrect, except

Options:
A The recipient plasma should not contain antigens against antibodies present in donor plasma.
B The donor RBCs should not contain antibodies against an antigen in recipient plasma.
C The recipient plasma should not contain antibodies against donor RBC antigens.
D The recipient RBCs should not have antigens found on donor RBCs.

The correct answer is:
The recipient plasma should not contain antibodies against donor RBC antigens.

Solution:
Blood transfusion means receiving blood into one's circulation intravenously. Antigens are present on the surface of erythrocytes (RBC), whereas antibodies are present in blood plasma. For example, a person with blood group B has surface antigen B on RBC's and antibodies to antigen A in its plasma. Hence, when RBCs are donated, the transfer of antibodies does not take place. However, as the RBCs of the donor have a surface antigen, it should be ensured that the recipient's plasma should not contain antibodies against the antigen on red blood capsules of the donor. Otherwise, if transfusion is made between incompatible donor and recipient, the reaction between the antigens on the donor's RBCs and antibody in the recipient plasma will produce clot and blocked capillaries.

Topic: Biology, Body Fluids and Circulation, NEET
All the following pairing of type of aestivation and its example is incorrect, except

Options:
A Valvate - Cassia
B Twisted - China rose, ladyfinger, Calotropis
C Imbricate - Cassia and Gulmohar
D Vexillary - Pea, bean, Aloe, tulip

The correct answer is:
Imbricate - Cassia and Gulmohar

Solution:
Imbricate aestivation is observed in Cassia and Gulmohar. Vexillary aestivation is present in members of Fabaceae family-like pea and bean. Aloe and tulip are members of Liliaceae family which shows valvate aestivation. China rose and ladyfinger has twisted but Calotropis has valvate aestivation.

Topic: Biology, Morphology of Flowering Plants, NEET
All the following plants are biennials except

Options:
A Sugarbeet
B Cabbage
C Carrot
D Pea

The correct answer is:
Pea

Solution:
Biennials are monocarpic plants that flower and die in the second season. Vernalisation can help such plants, by stimulating in them a photoperiodic flowering response by subjecting them to cold treatment. Some common examples of biennials include sugarbeet, cabbages, carrot, etc. Pea is an annual plant which produces flower once and dies in the same season.

Topic: Biology, Reproduction in Organisms, NEET