NEET UG 2020 · Biology · 90 questions
NEET 2020 Biology, question by question
The NEET 2020 Biology section had 90 questions from 36 chapters: 57 easy, 33 medium and 0 hard. 63% were easy, 2 points above the 2017–2026 average for Biology, and 43 (48%) came from Class 12. Biotechnology: Principles and Processes had the most, 6 questions.
Updated 2026-10-08
- Questions
- 90
- 50% of the paper
- Chapters asked
- 36
- 0 usual chapters skipped
- Easy
- 63%
- 2017–2026 average 61%
- From Class 12
- 48%
- 2017–2026 average 49%
The section
What Biology asked in 2020
Class balance, difficulty and the form of the questions. Bars below compare Biology across every paper from 2017–2026.
Botany and Zoology
- Botany
- Zoology
Class 11 and 12
- Class 11
- Class 12
Difficulty
- Easy
- Medium
- Hard
- New ideas
- 80 (89%)
- Use a figure
- 0
Question pattern
BIOLOGY 2020- Recall64%
- Match the lists17%
- Concept13%
- Application4%
- Calculation1%
Chapters
The 2020 Biology chapter split
All 36 Biology chapters asked, and which got more or less than usual: the chapter’s ten-year average per 180 questions.
Every chapter asked
- Biotechnology: Principles and Processes6 · usually 4.4
- Animal Kingdom4 · usually 3.3
- Biomolecules4 · usually 3.1
- Cell Cycle and Cell Division4 · usually 3.0
- Evolution4 · usually 2.7
- Molecular Basis of Inheritance4 · usually 5.8
- Principles of Inheritance and Variation4 · usually 4.1
- Biotechnology and its Applications3 · usually 2.3
- Human Health and Disease3 · usually 3.2
- Human Reproduction3 · usually 3.2
- Morphology of Flowering Plants3 · usually 2.7
- Plant Growth and Development3 · usually 2.2
- Plant Kingdom3 · usually 3.0
- Sexual Reproduction in Flowering Plants3 · usually 3.6
- Structural Organisation in Animals3 · usually 2.6
- Anatomy of Flowering Plants2 · usually 2.4
- Biodiversity and Conservation2 · usually 2.1
- Body Fluids and Circulation2 · usually 2.0
- Breathing and Exchange of Gases2 · usually 1.6
- Cell: The Unit of Life2 · usually 3.5
- Chemical Coordination and Integration2 · usually 2.3
- Digestion and Absorption2 · usually 1.4
- Ecosystem2 · usually 1.9
- Environmental Issues2 · usually 1.8
- Excretory Products and their Elimination2 · usually 1.5
- Microbes in Human Welfare2 · usually 1.6
- Mineral Nutrition2 · usually 1.1
- Organisms and Populations2 · usually 3.0
- Photosynthesis in Higher Plants2 · usually 2.2
- Reproductive Health2 · usually 2.1
- Biological Classification1 · usually 2.5
- Locomotion and Movement1 · usually 1.8
- Neural Control and Coordination1 · usually 1.5
- Respiration in Plants1 · usually 1.4
- Strategies for Enhancement in Food Production1 · usually 1.0
- Transport in Plants1 · usually 1.2
More than usual
- Biotechnology: Principles and Processes+1.66 questions · usually 4.4
- Evolution+1.34 questions · usually 2.7
- Cell Cycle and Cell Division+1.04 questions · usually 3.0
- Biomolecules+0.94 questions · usually 3.1
- Mineral Nutrition+0.82 questions · usually 1.1
- Plant Growth and Development+0.83 questions · usually 2.2
- Animal Kingdom+0.74 questions · usually 3.3
- Biotechnology and its Applications+0.73 questions · usually 2.3
Less than usual, or skipped
- Molecular Basis of Inheritance−1.84 questions · usually 5.8
- Biological Classification−1.61 question · usually 2.5
- Cell: The Unit of Life−1.52 questions · usually 3.5
- Organisms and Populations−1.02 questions · usually 3.0
- Locomotion and Movement−0.81 question · usually 1.8
- Sexual Reproduction in Flowering Plants−0.63 questions · usually 3.6
- Neural Control and Coordination−0.51 question · usually 1.5
- Respiration in Plants−0.41 question · usually 1.4
Every question
All 90 Biology questions of NEET 2020
Open any question for the full text, the options and the official answer. “New idea” means no earlier paper had tested it.
Botany50 questions
31 easy19 medium0 hard
- Q1
- Q2
- Q3
- Q6Identify the wrong statement with reference to the gene 'I' that controls ABO blood groups.
Principles of Inheritance and VariationMendelian InheritanceABO Blood Group System
MediumOne-line MCQNew ideaIdea asked in 2 papers
- Q8Select the correct match.
Principles of Inheritance and VariationSex Determination and Genetic DisordersMendelian Disorders and Their Loci
MediumOne-line MCQNew ideaIdea asked in 2 papers
- Q11Identify the substances having glycosidic bond and peptide bond, respectively in their structure :
BiomoleculesBiomolecule StructureGlycosidic Linkages
EasyOne-line MCQNew ideaIdea asked in 2 papers
- Q12
- Q13
- Q14Identify the correct statement with regard to phase (Gap 1) of interphase.
Cell Cycle and Cell DivisionMitotic DivisionEvents of G1, S and G2
EasyOne-line MCQNew ideaIdea asked in 3 papers
- Q16
- Q17
- Q20Ray florets have :
Morphology of Flowering PlantsFlower StructureEpigynous Flower Examples
MediumOne-line MCQNew idea
- Q23Which of the following is put into Anaerobic sludge digester for further sewage treatment ?
Microbes in Human WelfareSewage Treatment and Biogas
MediumOne-line MCQIdea asked in 2 papers
- Q28Match the following concerning essential elements and their functions in plants : (a) Iron | (i) Photolysis of water (b) Zinc | (ii)…
Mineral NutritionManganese in Photolysis of Water
MediumMatch the listsNew ideaIdea asked in 3 papers
- Q29Identify the incorrect statement.
Anatomy of Flowering PlantsPlant Tissues and AnatomyHeartwood versus Sapwood
EasyOne-line MCQIdea asked in 3 papers
- Q30
- Q32
- Q33
- Q34Which of the following regions of the globe exhibits highest species diversity ?
Biodiversity and ConservationPatterns and Estimates of BiodiversitySpecies Richness of the Amazon
EasyOne-line MCQNew ideaIdea asked in 2 papers
- Q36
- Q40
- Q41
- Q42
- Q46
- Q48Match the following columns and select the correct option. Column - I | Column - II (a) Clostridium butylicum | (i) Cyclosporin-A (b)…
Microbes in Human WelfareMicrobe-Product Matching
MediumMatch the listsIdea asked in 5 papersAsked the year before
- Q50Floridean starch has structure similar to :
Plant KingdomAlgae ClassificationFloridean Starch Structure
MediumOne-line MCQNew idea
- Q52
- Q53
- Q56
- Q57Which of the following is correct about viroids ?
Biological ClassificationViruses, Viroids, Prions and LichensViroids
EasyOne-line MCQIdea asked in 3 papersAsked the year before
- Q58The ovary is half inferior in :
Morphology of Flowering PlantsFlower StructurePerigynous Flower Examples
MediumOne-line MCQNew idea
- Q60Match the trophic levels with their correct species examples in grassland ecosystem. (a) Fourth trophic level | (i) Crow (b) Second…
EcosystemEnergy Flow in EcosystemTrophic Level Identification
EasyMatch the listsNew ideaIdea asked in 2 papers
- Q61
- Q63
- Q64
- Q65
- Q66
- Q67
- Q69
- Q71Strobili or cones are found in :
Plant KingdomPteridophytesPosition of Strobili in Equisetum
EasyOne-line MCQNew idea
- Q72Some dividing cells exit the cell cycle and enter vegetative inactive stage. This is called quiescent stage (). This process occurs…
Cell Cycle and Cell DivisionMitotic DivisionQuiescent G0 Phase
EasyOne-line MCQIdea asked in 2 papersAsked the year before
- Q74
- Q77
- Q79
- Q82
- Q83
- Q85
- Q86
- Q88
- Q90
Zoology40 questions
26 easy14 medium0 hard
- Q4Match the following diseases with the causative organism and select the correct option. Column - I | Column - II (a) Typhoid | (i)…
Human Health and DiseaseHuman Diseases, Cancer and Drug AbuseDiseases and Their Pathogens
EasyMatch the listsIdea asked in 5 papersAsked the year before
- Q5
- Q7
- Q9Match the following columns and select the correct option. Column - I | Column - II (a) Gregarious, polyphagous pest | (i) Asterias (b)…
Animal KingdomAnimal Kingdom: Basis of Classification and Non-chordatesDistinctive Structures of Phyla
MediumMatch the listsIdea asked in 4 papersAsked the year before
- Q10The infectious stage of Plasmodium that enters the human body is :
Human Health and DiseaseHuman Diseases, Cancer and Drug AbusePlasmodium Life Cycle
EasyOne-line MCQNew ideaIdea asked in 2 papers
- Q15
- Q18In gel electrophoresis, separated DNA fragments can be visualized with the help of :
Biotechnology: Principles and ProcessesRestriction EnzymesUV Visualization of DNA
EasyOne-line MCQNew ideaIdea asked in 3 papers
- Q19Identify the wrong statement with reference to transport of oxygen.
Breathing and Exchange of GasesOxygen Dissociation CurveAlveolar Conditions for Oxyhemoglobin
MediumOne-line MCQNew ideaIdea asked in 3 papers
- Q21
- Q22
- Q24
- Q25
- Q26
- Q27Match the organism with its use in biotechnology. (a) Bacillus thuringiensis | (i) Cloning vector (b) Thermus aquaticus | (ii)…
Biotechnology: Principles and ProcessesCloning VectorsTi Plasmid and T-DNA
MediumMatch the listsNew ideaIdea asked in 2 papers
- Q31
- Q35Which of the following statements is not correct ?
Biotechnology and its ApplicationsGenetically Engineered InsulinDisulfide Bond Assembly
MediumOne-line MCQNew ideaIdea asked in 2 papers
- Q37Match the following columns and select the correct option. Column - I | Column - II (a) 6 - 15 pairs of gill slits | (i) Trygon (b)…
Animal KingdomChordate ClassesComparison of Fish Classes
MediumMatch the listsNew ideaIdea asked in 2 papers
- Q38
- Q39
- Q43
- Q44
- Q45
- Q47
- Q49
- Q51Select the option including all sexually transmitted diseases.
Reproductive HealthReproductive Health and STIsSexually Transmitted Infections
EasyOne-line MCQNew ideaIdea asked in 2 papers
- Q54
- Q55
- Q59
- Q62
- Q68
- Q70
- Q73
- Q75The QRS complex in a standard ECG represents :
Body Fluids and CirculationElectrocardiogramQRS Complex Meaning
EasyOne-line MCQNew ideaIdea asked in 2 papers
- Q76
- Q78The sequence that controls the copy number of the linked DNA in the vector, is termed :
Biotechnology: Principles and ProcessesCloning VectorsOrigin of Replication (ori)
EasyOne-line MCQNew ideaIdea asked in 3 papers
- Q80Match the following columns and select the correct option. Column - I | Column - II (a) Pituitary gland | (i) Grave's disease (b) Thyroid…
Chemical Coordination and IntegrationEndocrine Glands and Hormone ActionEndocrine Disorders
EasyMatch the listsIdea asked in 5 papersAsked the year before
- Q81Select the correct statement.
Chemical Coordination and IntegrationEndocrine Glands and Hormone ActionPancreatic Hormones
MediumOne-line MCQIdea asked in 3 papersAsked the year before
- Q84
- Q87Bilaterally symmetrical and acoelomate animals are exemplified by :
Animal KingdomAnimal Kingdom: Basis of Classification and Non-chordatesPhyla Sharing Combined Features
EasyOne-line MCQIdea asked in 3 papersAsked the year before
- Q89
Questions from the official NEET UG 2020 paper (NTA). Chapter, topic and idea tags and difficulty are Lumi’s.
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