datavorous/entrance-exam-dataset huggingface dataset:
Most of the unicellular organisms are kept under

Options:
A Kingdom Monera and kingdom Protista
B Kingdom Monera and kingdom Plantae
C Kingdom Protista and kingdom Plantae
D Kingdom Protista and kingdom Fungi

The correct answer is:
Kingdom Monera and kingdom Protista

Solution:
According to five kingdom classification, single cellular eukaryotes come under Protista and single cellular prokaryotes come under Monera. Thus all single unicellular organisms belong to these two groups.

Topic: Biology, Biological Classification, NEET
Most resistant stage in the life cycle of angiosperms is its:

Options:
A Embryo stage
B Seed stage
C Flowering stage
D Fruiting stage

The correct answer is:
Seed stage

Solution:
A basic structure of plant, the seed develops from the ovules after fertilization. Seed contains the embryo which is enclosed by the seed coat. In angiosperms, the seed is found inside the fruit. One of the ability of angiospermic seeds is they can induce seed dormancy which prevents seed germination and protects seed from harsh environment. Seed coat contains flavonoids that prevent damage from UV rays. Seeds are very resilient to harsh environments.

Topic: Biology, Sexual Reproduction in Flowering Plants, NEET
Motile zoospores are produced by

Options:
A Chlamydomonas
B Penicillium
C Bacillus
D Amoeba

The correct answer is:
Chlamydomonas

Solution:
In Chlamydomonas, zoospore formation takes place during favorable conditions. It is an asexual method of reproduction. âThe zoospores are liberated from the parent cell or zoosporangium by gelatinization or rupture of the cell wall. The zoospores are identical to the parent cell in structure but smaller in size.

Topic: Biology, Reproduction in Organisms, NEET
Motile zygote of Plasmodium occurs in

Options:
A gut of female Anopheles
B salivary glands of Anopheles
C human RBCs
D human liver

The correct answer is:
gut of female Anopheles

Solution:
When female Anopheles sucks the blood of an infected person, the gametocytes of Plasmodium are picked up by the mosquito. Now sexual reproduction of Plasmodium occurs inside mosquito. The outer envelope of gametocyte is dissolved and its contents are liberated into the cavity of gut. These contents then undergo gametogony, i.e., formation of microgametes and macroagamete. The nuclei of both fuse and a synkaryon or zygote is formed. This zygote is motionless and spherical for sometime but becomes motile, elongated and vermiform very soon. Now, it is called vermicule or ookinete. Ookinete pierces the stomach wall and forms a cyst (oocyst) on its outer surface which has about 10000 sporozoites. The latter pass into salivary glands of the mosquito.

Topic: Biology, Human Health and Diseases, NEET, NEET 2012 (Screening)
Motion of the particle is non uniform when

Options:
A direction of velocity changes
B magnitude of velocity changes
C speed changes
D all of the above

The correct answer is:
all of the above

Solution:
If velocity is changing then motion is said to be non uniform. Therefore either direction changes or magnitude of velocity i.e. speed changes or both changes the motion is said to be non uniform.

Topic: Physics, Motion In One Dimension, NEET
Mouth parts of cockroach are:

Options:
A Siphoning type
B Sponging type
C Biting and chewing type
D Piercing and sucking type

The correct answer is:
Biting and chewing type

Solution:
Mouth parts in cockroach: These are biting and chewing type. These consist of labrum (upper lip), labium (lower lip), maxillae, mandibles and hypophyarnx (median flexible lobe acting as tongue). A salivary duct opens at the base of the hypopharynx.

Topic: Biology, Structural Organisation in Animals, NEET
Movement of sperm is due to

Options:
A Sperm tail
B Sperm head
C Acrosome of the sperm
D Middle piece of the sperm

The correct answer is:
Sperm tail

Solution:
The tail is a very long tapering vibratile part of sperm, so the tail brings about the movement of sperm. The tail of the sperm is called the flagellum, It provides motility to the sperm. It is made up of axoneme (the central skeleton with 11 microtubules), a thin cell membrane covering it and a spirally arranged mitochondria. The back and forth movement of the tail makes the sperm to move. ATP produced by mitochondria supplies the energy for this process.

Topic: Biology, Human Reproduction, NEET
Moving with the same velocity, which of the following has the longest de Broglie wavelength?

Options:
A β- particle
B α- particle
C Proton
D Neutron

The correct answer is:
β- particle

Solution:
β- particle is an electron. Since electron has the smallest mass, its de Broglie wavelength is the longest as the velocity of all particles is the same.

Topic: Physics, Dual Nature of Matter, NEET
M-phase in humans lasts

Options:
A 90% of the total cell division duration
B 60% of the total cell division duration
C 96% of the total cell division duration
D < 5% of the total cell division duration

The correct answer is:
< 5% of the total cell division duration

Solution:
The cell cycle duration will vary in different types of cells. The G1 phase will continue for approximately 11 hours, S phase will continue for 8 hours, G2 phase for nearly 4 hours and the M phase for nearly one hour in a rapidly dividing human cell with cell cycle duration of 24 hours.

Topic: Biology, Cell Cycle and Cell Division, NEET
mRNA directs building of proteins through sequence of its

Options:
A Exons
B Anticodons
C Introns
D Codons

The correct answer is:
Codons

Solution:
Gene is a segment of DNA that is responsible for synthesis of a particular type of protein. Gene that codes for a particular protein or enzyme is also called as cistron. In eukaryotes, these are monocistronic and the coding sequence is interrupted by short sequences which donot appear in the mature mRNA called as intron. The coding sequence involved in expression of the protein is termed exon.
Codon is the particular sequence of three N-bases that represents a specific amino acid found on the sequence of mRNA which is translated by the ribosomes to join amino acids in making long chain polypeptides.

Topic: Biology, Molecular Basis of Inheritance, NEET
MTP Act is associated with

Options:
A use of contraceptive
B legal termination of pregnancy
C surrogacy
D assisted reproductive technique

The correct answer is:
legal termination of pregnancy

Solution:
Medical Termination of Pregnancy Act, 1971, with a view to increase upper gestation limit for termination of pregnancy under certain conditions and to strengthen access to comprehensive abortion care, under strict conditions, without compromising service and quality of safe abortion.

Topic: Biology, Reproductive Health, NEET
MTP Act was passed by the Indian Government in

Options:
A 1963
B 1971
C 1975
D 1986

The correct answer is:
1971

Solution:
Medical Termination of Pregnancy Act, 1971, with a view to increase upper gestation limit for termination of pregnancy under certain conditions and to strengthen access to comprehensive abortion care, under strict conditions, without compromising service and quality of safe abortion.

Topic: Biology, Reproductive Health, NEET
MTP is a process to get rid of unwanted pregnancy. Which of the following statement is not correct for MTP?

Options:
A MTPs account for nearly 1/5th of the total number of conceived pregnancies in a year all over the world.
B MTP has a significant role in decreasing the population.
C MTP is an important contraceptive method to control the size of the population.
D The government of India legalized MTP in 1971.

The correct answer is:
MTP is an important contraceptive method to control the size of the population.

Solution:
Medical termination of pregnancy is the intentional or voluntary termination of pregnancy. It was legalized in Indian Govt. in 1971 under strict conditions to avoid misuse. Nearly 1/5th of the total pregnancies are terminated all over the world and contributing to population control. It is a not a contraceptive method as it is not preventing pregnancy rather terminating it.

Topic: Biology, Reproductive Health, NEET
Mucus coating of the epithelium lining of the respiratory, gastrointestinal and urogenital tracts helps in trapping microbes entering our body. This coating belongs to which barrier of the innate immunity?

Options:
A Physical
B Cytokine
C Physiological
D Cellular

The correct answer is:
Physical

Solution:
The mucus coating of epithelium lining of the respiratory, gastrointestinal and urogenital tract belong to the physical barrier of innate immunity. They trap the microbes which enter our body and thus prevent infection.
Cytokine barrier includes proteins called interferon, which are secreted by virus infected cells and provide protection to non-infected cells.
Physiological barrier includes acid in stomach, saliva in mouth, tears, etc. which prevent growth of microbes.
Cellular barrier includes the leucocytes present in the body and macrophages, which are phagocytic in nature.

Topic: Biology, Human Health and Diseases, NEET
Mule is a cross breed between:

Options:
A Male donkey and female horse
B Female donkey and male horse
C Male mule and female horse
D None of these

The correct answer is:
Male donkey and female horse

Solution:
A mule is the offspring of a male donkey (a jack) and a female horse (a mare). The mules are always sterile. These animals are produced by interspecific hybridization. Male and female animals of two different species are mated to get the progeny with combined desirable features of both the parents and may be of considerable economic value.

Topic: Biology, Strategies for Enhancement in Food Production, NEET
Mule is an example of _______

Options:
A Cross- breeding
B Interspecific hybridization
C Out-breeding
D Out- crossing

The correct answer is:
Interspecific hybridization

Solution:
Interspecific hybridization is the crossing of two species from the same genus. In this method, male and female animals of two different species are mated. In some cases, the progeny may combine desirable features of both the parents and maybe of considerable economic value. A mule is the offspring of a male donkey (jack) and a female horse (mare). Horses and donkeys are different species, with different numbers of chromosomes. The first two generation hybrids between these two species, a mule is easier to obtain than a hinny, which is the offspring of a female donkey (jenny) and a male horse (stallion).

Topic: Biology, Strategies for Enhancement in Food Production, NEET
Mule, Tigon, Liger and Hinny are

Options:
A species
B sub-species
C hybrids
D category

The correct answer is:
hybrids

Solution:
Hybrids are animals with parents belonging to two different species. Mule, Tigon, Liger and Hinny are hybrid animals that are not produced naturally but rather induced. Mule and hinny are sterile. Although they are living organisms, but not capable enough to produce offspring.

Topic: Biology, The Living World, NEET
Multiload 375 acts as a contraceptive because

Options:
A it prevents ovulation.
B it releases progesterone hormone.
C it releases copper ions which suppress the motility and fertilizing capacity of sperm.
D it decreases sperm mortality and increases sperm motility.

The correct answer is:
it releases copper ions which suppress the motility and fertilizing capacity of sperm.

Solution:
Multiload 375 is an intrauterine contraceptive device. IUDs are inserted into the uterus and prevent pregnancy and help in population control measures. They function by increasing phagocytosis of sperms within the uterus. The copper ions released by them suppress sperm motility and its fertilizing capacity. In addition to this, the IUDs make the uterus unsuitable for implantation and also the cervix hostile to the sperms.

Topic: Biology, Reproductive Health, NEET
Multiple alleles are present:

Options:
A On different chromosomes
B At different loci on the same chromosome
C At the same locus of the chromosomes
D On non-sister chromatids

The correct answer is:
At the same locus of the chromosomes

Solution:
Mendel proposed that each gene has two contrasting forms i.e., alleles, but there are some which are having more than two alternative forms (allele). The presence of more than two alleles for a gene is known as multiple allelism. These alleles are present at the same locus of the chromosomes and can be identified only during population studies.

Topic: Biology, Principles of Inheritance and Variation, NEET, NEET 2015 (Phase 1)
Multiple alleles control the inheritance of

Options:
A Phenylketonuria
B Colour blindness
C Sickle cell anaemia
D Blood groups

The correct answer is:
Blood groups

Solution:
Blood groups in human are controlled by multiple alleles.

Topic: Biology, Principles of Inheritance and Variation, NEET
Multiple Ovulation Embryo Transfer Technology (MOET) is a programme for herd improvement. In this method, a cow is administered hormones, with _______1_______-like activity, to induce follicular maturation and super ovulation - instead of one egg, which they normally yield per cycle, they produce _______2_______eggs. The animal is either mated with an elite bull or artificially inseminated. The fertilised eggs at _______3_______cells stages, are recovered_______4_______and transferred to surrogate mothers. The genetic mother is available for another round of super ovulation.

Options:
A 1234FSH8-326-8surgically
B 1234LH8-326-8surgically
C 1234FSH6-88-32non-surgically
D 1234LH6-88-16non-surgically

The correct answer is:
1234FSH6-88-32non-surgically

Solution:
Multiple Ovulation Embryo Transfer Technology (MOET)
Method: Hormones with FSH-like activity are injected in cow â Induces follicular maturation and superovulation (instead of ovulation of one egg/normal cycle) â 6-8 eggs are released â Artificial insemination / Mating with a bull â Fertilization of eggs â Non-surgical recovery of eggs (zygotes) at 8-32 cells stage â Transfer of zygotes into the surrogate mothers and use of genetic mother for next round of superovulation.
MOET has been used for cattle, rabbits, buffaloes, mares, sheep, etc. This technique is used for herd improvement. Females with high milk-yield and males with high quality (lean meat with less lipid) meat have been bred successfully to increase the herd size in a very short time.

Topic: Biology, Strategies for Enhancement in Food Production, NEET
Muscles with characteristic striations and involuntary are

Options:
A muscles in the wall of alimentary canal
B muscles of the heart
C muscles assisting locomotion
D muscles of the eyelids.

The correct answer is:
muscles of the heart

Solution:
Cardiac muscles are found in the walls of the heart and in the walls of large veins. Their fibres show the characters of both unstriped and striped muscle fibres and are involuntary.

Topic: Biology, Locomotion and Movement, NEET
Muscular dystrophy can be associated with

Options:
A inflammation of muscles
B autoimmune disorder of muscles
C genetic disorder of muscles
D degenerative disorder of muscles

The correct answer is:
genetic disorder of muscles

Solution:
This condition results from deficiency of protein Dystrophin in the muscle fibres. This is a cohesive protein present in the myofibril. It is present covering the sarcolemma and is attached to the actin protein. Deficiency of this will weaken the attachment and thus contraction and relaxation of myofibril will be affected. It is predicted that certain genes are necessary for formation of this protein and thus this condition is a genetic disorder.

Topic: Biology, Locomotion and Movement, NEET
Mustard contains

Options:
A Alternate phyllotaxy and actinomorphic flower
B Opposite phyllotaxy and zygomorphic flower
C Whorled phyllotaxy and actinomorphic flower
D Opposite phyllotaxy and actinomorphic flower

The correct answer is:
Alternate phyllotaxy and actinomorphic flower

Solution:
Mustard plant contains alternate phyllotaxy and actinomorphic flower. Alternate: In this type of leaf arrangement, a single leaf arises at each node in an alternate manner, e.g. China rose, mustard, sunflower, etc. Actinomorphic: When a flower shows radial symmetry, it is called an actinomorphic flower, e.g. mustard, datura, chilli, etc.

Topic: Biology, Morphology of Flowering Plants, NEET
Mutation is

Options:
A sudden change in morphology
B change in characters
C change in heritable characters
D none of these

The correct answer is:
change in heritable characters

Solution:
The mutation is sudden stable inheritable/transmissible discontinuous variations which appear in the organism due to permanent change in their genotypes.

Topic: Biology, Principles of Inheritance and Variation, NEET
Mutations can be induced with

Options:
A IAA
B ethylene
C gamma radiations
D infra red radiations

The correct answer is:
gamma radiations

Solution:
Gamma radiations are ionizing radiations and are physical mutagens. They are used as mutagens in such materials, where nucleus is deep seated, e.g., seeds, stem cuttings etc. 'Sharbati Sonora' variety of wheat has been developed by gamma radiations on 'Sonora-64' variety (Mexican dwarf wheat variety).

Topic: Biology, Principles of Inheritance and Variation, NEET, NEET 2011 (Screening)
Mutations in plant cells can be induced by:

Options:
A Kinetin
B Infrared rays
C Gamma rays
D Zeatin

The correct answer is:
Gamma rays

Solution:
A mutation occurs when a DNA gene is damaged or changed in such a way as to alter the genetic message carried by that gene.

It is possible to induce mutations artificially through the use of chemicals or radiations (like gamma radiations), and selecting and using the plants that have the desired character as a source in breeding – this process is called mutation breeding.

Topic: Biology, Strategies for Enhancement in Food Production, NEET, NEET 2021
Mutual force of attraction between water-molecules is called?

Options:
A Cohesion
B Adhesion
C Surface Tension
D None of the above

The correct answer is:
Cohesion

Solution:
Force of attraction between two water molecules is called as Cohesion.

Topic: Biology, Transport in Plants, NEET
MY and NY3 , two nearly insoluble salts, have the same Ksp values of 6.2×10-13 at room temperature. Which statement would be true in regard to MY and NY3 ?

Options:
A The molar solubilities of MY and NY3 in water are identical.
B The molar solubility of MY in water is less than that of NY3 .
C The salts MY and NY3 are more soluble in 0.5 M KY than in pure water.
D The addition of the salt of KY to solution of MY and NY3 will have no effect on their solubilities.

The correct answer is:
The molar solubility of MY in water is less than that of NY3 .

Solution:
MY insoluble salt K sp = s 2
N Y 3 salt K sp =s ( 3s ) 3
=27 s 4
S= ( k sp 27 ) 1 n
S N Y 3 = ( K sp 27 ) 1 4 = ( 6.2× 10 −13 27 ) 1 4
∴SMY=6.2×10-13=7.8×10-7
Solubility values
∴SMY<SNY3

Topic: Chemistry, Ionic Equilibrium, NEET, NEET 2016 (Phase 1)
My nucellar cells surrounding the embryo sac start dividing, protrude into the embryo sac and develop into the embryos. Each of my ovule contains many embryos. Who am I?

Options:
A Apple
B Litchi
C Lemon
D Strawberry

The correct answer is:
Lemon

Solution:
In citrus, the nucellar cells (diploid) protrude in the embryo sac and develop many embryos. This phenomenon is called polyembryony. Since such seeds are formed with fertilization, they are also called apomictic seeds.

Topic: Biology, Sexual Reproduction in Flowering Plants, NEET
Mycoplasma differs from virus in being sensitive to

Options:
A Sugar
B Tetracycline
C Protein
D Amino acid

The correct answer is:
Tetracycline

Solution:
Mycoplasma are sensitive to tetracycline and resistant to penicillin, because they lack cell wall.

Topic: Biology, Biological Classification, NEET
Mycoplasmas are different from other prokaryotes by

Options:
A Presence of chitin in cell walls
B Presence of murein in cell walls
C Presence of proteins in cell walls
D Absence of cell wall itself

The correct answer is:
Absence of cell wall itself

Solution:
Mycoplasma is a wall-less bacteria. It is also known as PPLO. Because of the absence of a cell wall, it may have several shapes therefore termed as pleomorphic organisms. The absence of a cell wall makes them resistant to penicillin.

Topic: Biology, Biological Classification, NEET
Mycoplasmas, the smallest cells, are only (i) Î¼m in length while bacteria could be (ii) Î¼m. Among multicellular organisms, human red blood cells are about (iii) Î¼m in diameter. Identify (i), (ii), and (iii).

Options:
A

(i)	(ii)	(iii)

0.5	5-7	7

B

(i)	(ii)	(iii)

0.3	3-7	9

C

(i)	(ii)	(iii)

0.3	3-5	4

D

(i)	(ii)	(iii)

0.3	3-5	7

The correct answer is:

(i)	(ii)	(iii)

0.3	3-5	7

Solution:
Mycoplasmas, the smallest cells, are only 0.3 Î¼m in length while bacteria could be 3 to 5 Î¼m. Among multicellular organisms, human red blood cells are about 7.0 Î¼m in diameter.

Topic: Biology, Cell - The Unit of Life, NEET
Mycorrhiza does not help the host plant in

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:
Mycorrhiza help the host plant in enhancing its phosphorus uptake capacity, increasing its tolerance to drought and enhancing its resistance to root pathogens.

Topic: Biology, Microbes in Human Welfare, NEET
Mycorrhiza is an example of:

Options:
A symbiotic relationship
B ectoparasitism
C endoparasitism
D decomposers

The correct answer is:
symbiotic relationship

Solution:
A mycorrhiza is a symbiotic association between a green plant and a fungus. The plant makes organic molecules such as sugars by photosynthesis and supplies them to the fungus, and the fungus supplies to the plant water and mineral nutrients, such as phosphorus, taken from the soil.
Related Theory
Mycorrhizae permits the plant to obtain additional moisture and nutrients. When mycorrhizae are present, plants are less susceptible to water stress.

Topic: Biology, Organisms and Populations, NEET, NEET 2003
Mycorrhiza promotes plant growth by

Options:
A absorbing inorganic ions from soil
B helping the plant in utilizing atmospheric nitrogen
C protecting the plant from infection
D serving as plant growth regulator

The correct answer is:
absorbing inorganic ions from soil

Solution:
Mycorrhizae is a mutual relationship between fungi and plant. Both benefit from each other. In it, the fungus colonises the root system of the host plant either intra- or extra- cellularly. The fungal group is known to absorb phosphorus from soil and pass it to the host plant that is important for plant growth and development. Such associations also provide other benefits like resistance to root-borne pathogens, tolerance to salinity and drought.

Topic: Biology, Microbes in Human Welfare, NEET
Mycorrhizae are the example of:

Options:
A Fungistasis
B Amensalism
C Antibiosis
D Mutualism

The correct answer is:
Mutualism

Solution:
Mycorrhizae are symbiotic relationships that form between fungi and plants. The fungi colonize the root system of a host plant, providing increased water and nutrient absorption capabilities while the plant provides the fungus with carbohydrates formed from photosynthesis. Mycorrhizal fungi encompass many major groups of the fungus Kingdom and in the past were divided into two non-evolutionarily related groups: the ectotrophic and endotrophic based upon the position of the fungal hyphae in relation to the tissues of a plants roots. Ectomycorrhizal fungi ensheath the root cells but usually do not penetrate them (extracellular). Endomycorrhizal fungi penetrate and enter the cells of a plant root

Topic: Biology, Biological Classification, NEET, NEET 2017