NEET UG 2021 · Biology · 100 questions

NEET 2021 Biology, question by question

The NEET 2021 Biology section had 100 questions from 34 chapters: 69 easy, 29 medium and 2 hard. 69% were easy, 8 points above the 2017–2026 average for Biology, and 48 (48%) came from Class 12. Molecular Basis of Inheritance had the most, 9 questions.

Updated 2026-10-08

Questions: 100; 50% of the paper
Chapters asked: 34; 3 usual chapters skipped
Easy: 69%; 2017–2026 average 61%
From Class 12: 48%; 2017–2026 average 49%

The section

What Biology asked in 2021

Class balance, difficulty and the form of the questions. Bars below compare Biology across every paper from 2017–2026.

Botany and Zoology

5050

Botany
Zoology

Class 11 and 12

5248

Class 11
Class 12

Difficulty

6929

Easy
Medium
Hard

New ideas: 83 (83%)
Use a figure: 1

Question pattern

BIOLOGY 2021

Recall59%
Concept18%
Match the lists17%
Application2%
Calculation2%
Assertion–reason1%
Two statements1%

Chapters

The 2021 Biology chapter split

All 34 Biology chapters asked, and which got more or less than usual: the chapter’s ten-year average per 180 questions. Counts are scaled to 180 questions so years compare fairly.

Every chapter asked

Molecular Basis of Inheritance9 · usually 5.8
Biotechnology and its Applications6 · usually 2.3
Biotechnology: Principles and Processes6 · usually 4.4
Animal Kingdom5 · usually 3.3
Cell Cycle and Cell Division5 · usually 3.0
Plant Kingdom5 · usually 3.0
Biomolecules4 · usually 3.1
Cell: The Unit of Life4 · usually 3.5
Organisms and Populations4 · usually 3.0
Strategies for Enhancement in Food Production4 · usually 1.0
Anatomy of Flowering Plants3 · usually 2.4
Breathing and Exchange of Gases3 · usually 1.6
Ecosystem3 · usually 1.9
Human Reproduction3 · usually 3.2
Locomotion and Movement3 · usually 1.8
Plant Growth and Development3 · usually 2.2
Reproductive Health3 · usually 2.1
Sexual Reproduction in Flowering Plants3 · usually 3.6
Structural Organisation in Animals3 · usually 2.6
Body Fluids and Circulation2 · usually 2.0
Digestion and Absorption2 · usually 1.4
Evolution2 · usually 2.7
Morphology of Flowering Plants2 · usually 2.7
Photosynthesis in Higher Plants2 · usually 2.2
Principles of Inheritance and Variation2 · usually 4.1
Biological Classification1 · usually 2.5
Chemical Coordination and Integration1 · usually 2.3
Environmental Issues1 · usually 1.8
Human Health and Disease1 · usually 3.2
Microbes in Human Welfare1 · usually 1.6
Mineral Nutrition1 · usually 1.1
Respiration in Plants1 · usually 1.4
The Living World1 · usually 0.9
Transport in Plants1 · usually 1.2

Not asked this year: Biodiversity and Conservation, Excretory Products and their Elimination, Neural Control and Coordination.

More than usual

Biotechnology and its Applications+3.16 questions · usually 2.3
Strategies for Enhancement in Food Production+2.64 questions · usually 1.0
Molecular Basis of Inheritance+2.39 questions · usually 5.8
Plant Kingdom+1.55 questions · usually 3.0
Cell Cycle and Cell Division+1.55 questions · usually 3.0
Animal Kingdom+1.25 questions · usually 3.3
Breathing and Exchange of Gases+1.13 questions · usually 1.6
Biotechnology: Principles and Processes+1.06 questions · usually 4.4

Less than usual, or skipped

Principles of Inheritance and Variation−2.32 questions · usually 4.1
Human Health and Disease−2.31 question · usually 3.2
Biodiversity and Conservation−2.1Not asked · usually 2.1
Biological Classification−1.61 question · usually 2.5
Excretory Products and their Elimination−1.5Not asked · usually 1.5
Neural Control and Coordination−1.5Not asked · usually 1.5
Chemical Coordination and Integration−1.41 question · usually 2.3
Evolution−0.92 questions · usually 2.7

Every question

All 100 Biology questions of NEET 2021

Open any question for the full text, the options and the official answer. “New idea” means no earlier paper had tested it.

Subject

Difficulty

Idea

Find

100 of 100 questions

Botany50 questions

35 easy13 medium2 hard

Q101
During the purification process for recombinant DNA technology, addition of chilled ethanol precipitates out :
Biotechnology: Principles and Processes Restriction Enzymes DNA Precipitation with Chilled Ethanol
EasyOne-line MCQIdea asked in 3 papers
Q102
A typical angiosperm embryo sac at maturity is :
Sexual Reproduction in Flowering Plants Anther, Ovule and Embryo Sac Development Structure of the Mature Embryo Sac
EasyOne-line MCQNew ideaIdea asked in 2 papers
Q103
Which of the following is an incorrect statement ?
Cell: The Unit of Life Nuclear Organization Anucleate Cells in Eukaryotes
MediumOne-line MCQNew idea
Q104
The plant hormone used to destroy weeds in a field is :
Plant Growth and Development Plant Growth Regulators Synthetic Auxins and Weed Control
EasyOne-line MCQNew idea
Q105
Match List - I with List - II. List - I | List - II (a) Cells with active cell division capacity | (i) Vascular tissues (b) Tissue having…
Anatomy of Flowering Plants Plant Tissues and Anatomy Parenchyma, Collenchyma and Sclerenchyma
EasyMatch the listsIdea asked in 3 papers
Q106
Which of the following is not an application of PCR (Polymerase Chain Reaction) ?
Biotechnology and its Applications Gene Therapy Molecular Diagnosis Prerequisite
EasyOne-line MCQNew ideaIdea asked in 2 papers
Q107
Which of the following is a correct sequence of steps in a PCR (Polymerase Chain Reaction) ?
Biotechnology: Principles and Processes Polymerase Chain Reaction DNA Denaturation Step
EasyOne-line MCQNew idea
Q108
When gene targetting involving gene amplification is attempted in an individual's tissue to treat disease, it is known as :
Biotechnology and its Applications Gene Therapy Gene Therapy Definition
EasyOne-line MCQNew idea
Q109
Mutations in plant cells can be induced by :
Strategies for Enhancement in Food Production Plant and Animal Breeding Mutation Breeding
EasyOne-line MCQNew idea
Q110
Which of the following algae produce Carrageen ?
Plant Kingdom Algae Classification Algin vs Carrageen Sources
EasyOne-line MCQNew ideaIdea asked in 2 papers
Q111
Diadelphous stamens are found in :
Morphology of Flowering Plants Flower Structure Stamen Cohesion Types
EasyOne-line MCQNew ideaIdea asked in 2 papers
Q112
Which of the following statements is not correct ?
Ecosystem Energy Flow in Ecosystem Inverted Pyramid of Biomass
EasyOne-line MCQIdea asked in 2 papers
Q113
Which of the following are not secondary metabolites in plants ?
Biomolecules Biomolecule Structure Primary vs. Secondary Metabolites
EasyOne-line MCQNew idea
Q114
Gemmae are present in :
Plant Kingdom Bryophytes Liverwort Structure and Gemmae
EasyOne-line MCQNew idea
Q115
When the centromere is situated in the middle of two equal arms of chromosomes, the chromosome is referred as :
Cell: The Unit of Life Nuclear Organization Chromosome Types by Centromere
EasyOne-line MCQNew ideaIdea asked in 2 papers
Q116
The factor that leads to Founder effect in a population is :
Evolution Natural Selection Founder Effect in Adaptive Radiation
EasyOne-line MCQNew idea
Q117
Genera like Selaginella and Salvinia produce two kinds of spores. Such plants are known as :
Plant Kingdom Pteridophytes Homospory vs Heterospory
EasyOne-line MCQIdea asked in 2 papers
Q118
In the equation GPP − R = NPP R represents :
Ecosystem Energy Flow in Ecosystem Net Primary Productivity (NPP) Equation
EasyOne-line MCQNew ideaIdea asked in 2 papers
Q119
Which of the following plants is monoecious ?
Plant Kingdom Gymnosperms Monoecious and Dioecious Plant Groups
MediumOne-line MCQIdea asked in 2 papers
Q120
The amount of nutrients, such as carbon, nitrogen, phosphorus and calcium present in the soil at any given time, is referred as :
Ecosystem Energy Flow in Ecosystem Standing State vs Standing Crop Distinction
EasyOne-line MCQNew idea
Q121
The term used for transfer of pollen grains from anthers of one plant to stigma of a different plant which, during pollination, brings…
Sexual Reproduction in Flowering Plants Pollination Mechanisms Types of Pollination
EasyOne-line MCQNew idea
Q122
Match List - I with List - II. List - I | List - II (a) Lenticels | (i) Phellogen (b) Cork cambium | (ii) Suberin deposition (c) Secondary…
Anatomy of Flowering Plants Plant Tissues and Anatomy Cork Cambium and Periderm
MediumMatch the listsIdea asked in 2 papers
Q123
DNA strands on a gel stained with ethidium bromide when viewed under UV radiation, appear as :
Biotechnology: Principles and Processes Restriction Enzymes UV Visualization of DNA
EasyOne-line MCQIdea asked in 3 papersAsked the year before
Q124
Which of the following stages of meiosis involves division of centromere ?
Cell Cycle and Cell Division Mitotic Division Centromere Splitting
EasyOne-line MCQNew idea
Q125
The production of gametes by the parents, formation of zygotes, the $F_1$ and $F_2$ plants, can be understood from a diagram called :
Principles of Inheritance and Variation Mendelian Inheritance Monohybrid Punnett Square
EasyOne-line MCQNew idea
Q126
Plants follow different pathways in response to environment or phases of life to form different kinds of structures. This ability is…
Plant Growth and Development Plant Growth and Differentiation Dedifferentiation and Redifferentiation
EasyOne-line MCQNew ideaIdea asked in 3 papers
Q127
Amensalism can be represented as :
Organisms and Populations Population Interactions Amensalism Concept (-/0)
EasyOne-line MCQNew idea
Q128
Match List - I with List - II. List - I | List - II (a) Protoplast fusion | (i) Totipotency (b) Plant tissue culture | (ii) Pomato (c)…
Strategies for Enhancement in Food Production Plant and Animal Breeding Micropropagation and Meristem Culture
MediumMatch the listsNew idea
Q129
Inspite of interspecific competition in nature, which mechanism the competing species might have evolved for their survival ?
Organisms and Populations Population Interactions Resource Partitioning
EasyOne-line MCQNew idea
Q130
Which of the following algae contains mannitol as reserve food material ?
Plant Kingdom Algae Classification Algal Food Storage
EasyOne-line MCQNew ideaIdea asked in 2 papers
Q131
The site of perception of light in plants during photoperiodism is :
Plant Growth and Development Photoperiodism Site of Photoperiodic Perception
EasyOne-line MCQIdea asked in 2 papers
Q132
The first stable product of $\mathrm{CO_2}$ fixation in sorghum is :
Photosynthesis in Higher Plants Calvin and Hatch-Slack Cycles First Stable Product of C4 Cycle
EasyOne-line MCQNew idea
Q133
Match List - I with List - II. List - I | List - II (a) Cristae | (i) Primary constriction in chromosome (b) Thylakoids | (ii) Disc-shaped…
Cell: The Unit of Life Mitochondria and Plastids Cristae Surface Area Maximization
EasyMatch the listsNew idea
Q134
Complete the flow chart on central dogma. (a) [circular arrow on] DNA $\xrightarrow{(b)}$ mRNA $\xrightarrow{(c)}$ (d)
Molecular Basis of Inheritance DNA Double Helix Central Dogma
EasyOne-line MCQ · figureNew idea
Q135
Match List - I with List - II. List - I | List - II (a) Cohesion | (i) More attraction in liquid phase (b) Adhesion | (ii) Mutual…
Transport in Plants Transpiration Pull Cohesion and Adhesion
EasyMatch the listsNew ideaIdea asked in 2 papers
Q136
Which of the following statements is incorrect ?
Photosynthesis in Higher Plants Photosynthetic Light Reaction Thylakoid vs Stroma Lamellae Distribution
MediumOne-line MCQNew idea
Q137
Select the correct pair.
Anatomy of Flowering Plants Plant Tissues and Anatomy Formation of the Cambial Ring
HardOne-line MCQNew idea
Q138
Identify the correct statement.
Molecular Basis of Inheritance Transcription Process Initiation/Elong/Term
MediumOne-line MCQNew idea
Q139
Match List - I with List - II. List - I | List - II (a) S phase | (i) Proteins are synthesized (b) $G_2$ phase | (ii) Inactive phase (c)…
Cell Cycle and Cell Division Mitotic Division Events of G1, S and G2
EasyMatch the listsIdea asked in 3 papersAsked the year before
Q140
Match Column - I with Column - II. Column - I | Column - II (a) Nitrococcus | (i) Denitrification (b) Rhizobium | (ii) Conversion of…
Mineral Nutrition Nitrogen Fixation Nitrification: Ammonia to Nitrite
EasyMatch the listsNew idea
Q141
Match Column - I with Column - II. Column - I | Column - II (a) % ⚥ $K_{(5)}C_{1+2+(2)}A_{(9)+1}\underline{G}_1$ | (i) Brassicaceae (b) ⊕…
Morphology of Flowering Plants Floral Formulae and Plant Families Floral Formula Symbols
HardMatch the listsNew idea
Q142
Match List - I with List - II. List - I | List - II (a) Protein | (i) C = C double bonds (b) Unsaturated fatty acid | (ii) Phosphodiester…
Biomolecules Biomolecule Structure Peptide Bond Formation
EasyMatch the listsNew ideaIdea asked in 2 papers
Q143
Which of the following statements is incorrect ?
Respiration in Plants TCA Cycle NADH to ATP Equivalence
MediumOne-line MCQNew idea
Q144
DNA fingerprinting involves identifying differences in some specific regions in DNA sequence, called as :
Molecular Basis of Inheritance Human Genome Project DNA Fingerprinting and VNTRs
MediumOne-line MCQNew idea
Q145
Which of the following statements is correct ?
Biological Classification Kingdom Fungi Plasmogamy and Karyogamy
MediumOne-line MCQNew idea
Q146
Now a days it is possible to detect the mutated gene causing cancer by allowing radioactive probe to hybridise its complimentary DNA in a…
Biotechnology and its Applications Gene Therapy Probe Hybridisation and Autoradiography
MediumOne-line MCQNew idea
Q147
Plasmid pBR322 has PstI restriction enzyme site within gene $amp^{R}$ that confers ampicillin resistance. If this enzyme is used for…
Biotechnology: Principles and Processes Cloning Vectors PvuI/PstI Site Insertional Inactivation
MediumOne-line MCQNew idea
Q148
In some members of which of the following pairs of families, pollen grains retain their viability for months after release ?
Sexual Reproduction in Flowering Plants Pollination Mechanisms Extended Pollen Viability Families
MediumOne-line MCQNew idea
Q149
What is the role of RNA polymerase III in the process of transcription in eukaryotes ?
Molecular Basis of Inheritance Transcription Process RNA Polymerase III Function
MediumOne-line MCQNew ideaIdea asked in 3 papers
Q150
In the exponential growth equation $N_t = N_oe^{rt}$ , e represents :
Organisms and Populations Population Attributes Exponential Growth Equation
EasyOne-line MCQNew idea

Zoology50 questions

34 easy16 medium0 hard

Q151
Read the following statements. (a) Metagenesis is observed in Helminths. (b) Echinoderms are triploblastic and coelomate animals. (c)…
Animal Kingdom Animal Kingdom: Basis of Classification and Non-chordates Phyla Sharing Combined Features
MediumOtherIdea asked in 3 papersAsked the year before
Q152
Match List - I with List - II. List - I | List - II (a) Metamerism | (i) Coelenterata (b) Canal system | (ii) Ctenophora (c) Comb plates |…
Animal Kingdom Animal Kingdom: Basis of Classification and Non-chordates Distinctive Structures of Phyla
EasyMatch the listsIdea asked in 4 papersAsked the year before
Q153
Which of the following statements wrongly represents the nature of smooth muscle ?
Structural Organisation in Animals Animal Tissues Smooth Muscle Morphology
EasyOne-line MCQNew idea
Q154
The centriole undergoes duplication during :
Cell Cycle and Cell Division Mitotic Division Events of G1, S and G2
EasyOne-line MCQIdea asked in 3 papersAsked the year before
Q155
With regard to insulin choose correct options. (a) C-peptide is not present in mature insulin. (b) The insulin produced by rDNA technology…
Biotechnology and its Applications Genetically Engineered Insulin Insulin Maturation Process
MediumOtherNew idea
Q156
Match List - I with List - II. List - I | List - II (a) Vaults | (i) Entry of sperm through Cervix is blocked (b) IUDs | (ii) Removal of…
Reproductive Health Contraceptive Methods Barrier Contraceptives
EasyMatch the listsNew ideaIdea asked in 2 papers
Q157
Which of the following RNAs is not required for the synthesis of protein ?
Molecular Basis of Inheritance Genetic Code and Translation Ribosome Structure and Role
EasyOne-line MCQNew ideaIdea asked in 2 papers
Q158
Identify the incorrect pair.
Biomolecules Biomolecule Structure Secondary Metabolites: Toxins and Lectins
MediumOne-line MCQNew idea
Q159
A specific recognition sequence identified by endonucleases to make cuts at specific positions within the DNA is :
Biotechnology: Principles and Processes Restriction Enzymes Palindromic Sequences
EasyOne-line MCQNew ideaIdea asked in 2 papers
Q160
Which of the following is not an objective of Biofortification in crops ?
Strategies for Enhancement in Food Production Plant and Animal Breeding Biofortification
EasyOne-line MCQNew ideaIdea asked in 2 papers
Q161
Chronic auto immune disorder affecting neuro muscular junction leading to fatigue, weakening and paralysis of skeletal muscle is called as :
Locomotion and Movement Human Skeleton and Musculoskeletal Disorders Muscular Disorders
EasyOne-line MCQIdea asked in 3 papers
Q162
Which one of the following belongs to the family Muscidae ?
The Living World Taxonomic Hierarchy Housefly Order vs Family Trap
EasyOne-line MCQNew idea
Q163
The partial pressures (in mm Hg) of oxygen ( $\mathrm{O_2}$ ) and carbon dioxide ( $\mathrm{CO_2}$ ) at alveoli (the site of diffusion) are :
Breathing and Exchange of Gases Oxygen Dissociation Curve Partial Pressures of O2 and CO2
EasyOne-line MCQNew idea
Q164
During the process of gene amplification using PCR, if very high temperature is not maintained in the beginning, then which of the…
Biotechnology: Principles and Processes Polymerase Chain Reaction DNA Denaturation Step
EasyOne-line MCQNew idea
Q165
Which enzyme is responsible for the conversion of inactive fibrinogens to fibrins ?
Body Fluids and Circulation Blood Composition, Groups and Coagulation Blood Coagulation
EasyOne-line MCQNew ideaIdea asked in 3 papers
Q166
The organelles that are included in the endomembrane system are :
Cell: The Unit of Life Endomembrane System and Cell Theory Members of the Endomembrane System
EasyOne-line MCQNew ideaIdea asked in 3 papers
Q167
Which one of the following is an example of Hormone releasing IUD ?
Reproductive Health Contraceptive Methods IUD Classifications
EasyOne-line MCQNew ideaIdea asked in 3 papers
Q168
Succus entericus is referred to as :
Digestion and Absorption Digestive Enzymes Succus Entericus Composition
EasyOne-line MCQNew idea
Q169
Select the favourable conditions required for the formation of oxyhaemoglobin at the alveoli.
Breathing and Exchange of Gases Oxygen Dissociation Curve Alveolar Conditions for Oxyhemoglobin
EasyOne-line MCQIdea asked in 3 papersAsked the year before
Q170
Veneral diseases can spread through : (a) Using sterile needles (b) Transfusion of blood from infected person (c) Infected mother to…
Reproductive Health Reproductive Health and STIs Transmission of STIs
EasyOtherNew idea
Q171
The fruit fly has 8 chromosomes (2n) in each cell. During interphase of Mitosis if the number of chromosomes at $G_1$ phase is 8, what…
Cell Cycle and Cell Division Mitotic Division Tracking Ploidy and DNA Content
EasyOne-line MCQNew idea
Q172
If Adenine makes 30% of the DNA molecule, what will be the percentage of Thymine, Guanine and Cytosine in it ?
Molecular Basis of Inheritance DNA Double Helix Chargaff's Rules
EasyNumericalNew idea
Q173
Which one of the following organisms bears hollow and pneumatic long bones ?
Animal Kingdom Chordate Classes Aves
MediumOne-line MCQIdea asked in 3 papers
Q174
Which is the “Only enzyme” that has “Capability” to catalyse Initiation, Elongation and Termination in the process of transcription in…
Molecular Basis of Inheritance Transcription Process Initiation/Elong/Term
EasyOne-line MCQNew idea
Q175
Match the following : List - I | List - II (a) Physalia | (i) Pearl oyster (b) Limulus | (ii) Portuguese Man of War (c) Ancylostoma |…
Animal Kingdom Animal Kingdom: Basis of Classification and Non-chordates Common Names of Animals
MediumMatch the listsNew idea
Q176
Which stage of meiotic prophase shows terminalisation of chiasmata as its distinctive feature ?
Cell Cycle and Cell Division Meiotic Prophase I Terminalisation
EasyOne-line MCQNew idea
Q177
Dobson units are used to measure thickness of :
Environmental Issues Ozone Depletion Dobson Units
EasyOne-line MCQNew ideaIdea asked in 2 papers
Q178
Sphincter of oddi is present at :
Digestion and Absorption Digestive Enzymes Sphincter of Oddi Function
EasyOne-line MCQNew idea
Q179
In a cross between a male and female, both heterozygous for sickle cell anaemia gene, what percentage of the progeny will be diseased ?
Principles of Inheritance and Variation Mendelian Inheritance Monohybrid Punnett Square
EasyOne-line MCQNew idea
Q180
Persons with 'AB' blood group are called as “Universal recipients”. This is due to :
Body Fluids and Circulation Blood Composition, Groups and Coagulation ABO Blood Groups
EasyOne-line MCQNew idea
Q181
Which of the following characteristics is incorrect with respect to cockroach ?
Structural Organisation in Animals Cockroach Anatomy Hepatic Caecae Location and Function
MediumOne-line MCQNew idea
Q182
Erythropoietin hormone which stimulates R.B.C. formation is produced by :
Chemical Coordination and Integration Endocrine Glands and Hormone Action Hormones of Heart, Kidney and Gut
MediumOne-line MCQNew ideaIdea asked in 3 papers
Q183
Match List - I with List - II. List - I | List - II (a) Aspergillus niger | (i) Acetic Acid (b) Acetobacter aceti | (ii) Lactic Acid (c)…
Microbes in Human Welfare Microbial Organic Acids
EasyMatch the listsNew idea
Q184
Receptors for sperm binding in mammals are present on :
Human Reproduction Female Reproductive System Zona Pellucida Formation
EasyOne-line MCQNew ideaIdea asked in 2 papers
Q185
For effective treatment of the disease, early diagnosis and understanding its pathophysiology is very important. Which of the following…
Biotechnology and its Applications Gene Therapy Molecular Diagnosis Prerequisite
MediumOne-line MCQNew ideaIdea asked in 2 papers
Q186
Statement I : The codon 'AUG' codes for methionine and phenylalanine. Statement II : 'AAA' and 'AAG' both codons code for the amino acid…
Molecular Basis of Inheritance Genetic Code and Translation Properties of Genetic Code
EasyTwo statementsIdea asked in 2 papers
Q187
Match List - I with List - II. List - I | List - II (a) Scapula | (i) Cartilaginous joints (b) Cranium | (ii) Flat bone (c) Sternum |…
Locomotion and Movement Skeletal Joints Fibrous Joints
EasyMatch the listsNew ideaIdea asked in 2 papers
Q188
Which of the following is not a step in Multiple Ovulation Embryo Transfer Technology (MOET) ?
Strategies for Enhancement in Food Production Plant and Animal Breeding Multiple Ovulation Embryo Transfer
MediumOne-line MCQNew idea
Q189
Which of the following secretes the hormone, relaxin, during the later phase of pregnancy ?
Human Reproduction Pregnancy, Embryonic Development and Parturition Hormones of Pregnancy
MediumOne-line MCQNew idea
Q190
Which one of the following statements about Histones is wrong ?
Molecular Basis of Inheritance DNA Double Helix Histone Amino Acid Composition
MediumOne-line MCQNew ideaIdea asked in 2 papers
Q191
Identify the types of cell junctions that help to stop the leakage of the substances across a tissue and facilitation of communication…
Structural Organisation in Animals Animal Tissues Cell Junction Functions
EasyOne-line MCQNew idea
Q192
Following are the statements with reference to 'lipids'. (a) Lipids having only single bonds are called unsaturated fatty acids. (b)…
Biomolecules Biomolecule Structure Fatty Acid Carbon Counting
MediumOtherNew idea
Q193
Match List - I with List - II. List - I | List - II (a) Filariasis | (i) Haemophilus influenzae (b) Amoebiasis | (ii) Trichophyton (c)…
Human Health and Disease Human Diseases, Cancer and Drug Abuse Diseases and Their Pathogens
EasyMatch the listsIdea asked in 5 papersAsked the year before
Q194
During muscular contraction which of the following events occur ? (a) 'H' zone disappears (b) 'A' band widens (c) 'I' band reduces in…
Locomotion and Movement Sliding Filament Theory Specific Band Changes During Contraction
MediumOtherNew idea
Q195
Assertion (A) : A person goes to high altitude and experiences 'altitude sickness' with symptoms like breathing difficulty and heart…
Breathing and Exchange of Gases Oxygen Dissociation Curve Effect of pO2 on Binding
EasyAssertion–reasonNew idea
Q196
Match List - I with List - II. List - I | List - II (a) Adaptive radiation | (i) Selection of resistant varieties due to excessive use of…
Evolution Natural Selection Adaptive Radiation
EasyMatch the listsNew idea
Q197
Following are the statements about prostomium of earthworm. (a) It serves as a covering for mouth. (b) It helps to open cracks in the soil…
Animal Kingdom Animal Kingdom: Basis of Classification and Non-chordates Earthworm Morphology
MediumOtherNew idea
Q198
The Adenosine deaminase deficiency results into :
Biotechnology and its Applications Gene Therapy ADA Role in Immune System
EasyOne-line MCQNew idea
Q199
Match List - I with List - II. List - I | List - II (a) Allen's Rule | (i) Kangaroo rat (b) Physiological adaptation | (ii) Desert lizard…
Organisms and Populations Organism and Its Environment Physiological, Behavioural and Biochemical Adaptations
MediumMatch the listsNew idea
Q200
Which of these is not an important component of initiation of parturition in humans ?
Human Reproduction Pregnancy, Embryonic Development and Parturition Parturition
MediumOne-line MCQNew idea

Questions from the official NEET UG 2021 paper (NTA). Chapter, topic and idea tags and difficulty are Lumi’s.

Biology in every NEET paper

NEET 2021 Physics NEET 2021 Chemistry The whole 2021 paper Biology across ten years