50_multiple_choice_questions_MCQs_for_NEET_Biology_Chapter_4_Animal.pdf
234 KB
Animal Kingdom 50 MCQ for Practice
50 most repeated NEET Biology questions.pdf
257 KB
50 Most repeated questions from BIOLOGY for NEET
🌟Must solve this set
🌟Must solve this set
😍3❤🔥2
Last Year Paper breakdown
Class 11 carries around 48% of the biology paper.
Class 12 usually carries around 52%.
High-weightage chapters:
Molecular Basis of Inheritance
Principles of Inheritance and Variation
Human Physiology (full unit)
Neural Control and Coordination
Reproduction & Genetics Unit.
Class 11 carries around 48% of the biology paper.
Class 12 usually carries around 52%.
High-weightage chapters:
Molecular Basis of Inheritance
Principles of Inheritance and Variation
Human Physiology (full unit)
Neural Control and Coordination
Reproduction & Genetics Unit.
👌2❤🔥1👍1
Last Year Chemistry breakdown
Physical Chemistry: ~35%
Inorganic Chemistry: ~30%
Organic Chemistry: ~35%
High-weight chapters like
Chemical Bonding,
Coordination Compounds,
Thermodynamics,
Equilibrium,
Organic Mechanisms,
Biomolecules
— must be revised deeply.
Physical Chemistry: ~35%
Inorganic Chemistry: ~30%
Organic Chemistry: ~35%
High-weight chapters like
Chemical Bonding,
Coordination Compounds,
Thermodynamics,
Equilibrium,
Organic Mechanisms,
Biomolecules
— must be revised deeply.
👌6😍1
Most Asked NEET Biology MCQs with Frequency (2016–2024):
1. Which kingdom has organisms without a true nucleus?
Asked in: 2017, 2018, 2020, 2023 — (4 times)
2. Which stage of meiosis leads to genetic variation?
Asked in: 2016, 2019, 2021, 2024 — (4 times)
3. Which enzyme is known as the molecular scissors?
Asked in: 2017, 2018, 2020, 2022 — (4 times)
4. What is the principal nitrogenous excretory product in humans?
Asked in: 2016, 2018, 2021, 2024 — (4 times)
5. Which structure of the nephron is responsible for filtration?
Asked in: 2017, 2019, 2020, 2023 — (4 times)
6. Which plant hormone promotes cell elongation?
Asked in: 2016, 2018, 2022, 2024 — (4 times)
7. Double fertilization is unique to which group of plants?
Asked in: 2017, 2018, 2020, 2023 — (4 times)
8. Which part of the brain controls respiration and cardiovascular reflexes?
Asked in: 2016, 2019, 2022, 2024 — (4 times)
9. Which organelle is called the ‘powerhouse of the cell’?
Asked in: 2016, 2018, 2021, 2024 — (4 times)
10. Which immunity is acquired after infection or vaccination?
Asked in: 2017, 2019, 2020, 2023 — (4 times)
11. The functional unit of DNA replication is called?
Asked in: 2016, 2018, 2021, 2024 — (4 times)
12. The process of conversion of mRNA into protein is known as?
Asked in: 2017, 2019, 2022, 2024 — (4 times)
13. What is the function of the loop of Henle?
Asked in: 2017, 2019, 2020, 2023 — (4 times)
14. Which phylum shows radial symmetry?
Asked in: 2016, 2018, 2021, 2023 — (4 times)
15. The universal source of energy for all life forms is?
Asked in: 2016, 2019, 2021, 2024 — (4 times)
16. Which organ produces insulin?
Asked in: 2017, 2018, 2020, 2023 — (4 times)
17. Which blood group is the universal donor?
Asked in: 2016, 2019, 2022, 2024 — (4 times)
18. Which structure connects the placenta to the embryo?
Asked in: 2016, 2018, 2020, 2023 — (4 times)
19. The semi-permeable membrane in osmosis allows?
Asked in: 2017, 2019, 2021, 2024 — (4 times)
20. The primary consumer in a food chain is usually?
Asked in: 2016, 2018, 2020, 2023 — (4 times)
Share for more questions from each subject like this
https://t.me/neet_bundle
1. Which kingdom has organisms without a true nucleus?
Asked in: 2017, 2018, 2020, 2023 — (4 times)
2. Which stage of meiosis leads to genetic variation?
Asked in: 2016, 2019, 2021, 2024 — (4 times)
3. Which enzyme is known as the molecular scissors?
Asked in: 2017, 2018, 2020, 2022 — (4 times)
4. What is the principal nitrogenous excretory product in humans?
Asked in: 2016, 2018, 2021, 2024 — (4 times)
5. Which structure of the nephron is responsible for filtration?
Asked in: 2017, 2019, 2020, 2023 — (4 times)
6. Which plant hormone promotes cell elongation?
Asked in: 2016, 2018, 2022, 2024 — (4 times)
7. Double fertilization is unique to which group of plants?
Asked in: 2017, 2018, 2020, 2023 — (4 times)
8. Which part of the brain controls respiration and cardiovascular reflexes?
Asked in: 2016, 2019, 2022, 2024 — (4 times)
9. Which organelle is called the ‘powerhouse of the cell’?
Asked in: 2016, 2018, 2021, 2024 — (4 times)
10. Which immunity is acquired after infection or vaccination?
Asked in: 2017, 2019, 2020, 2023 — (4 times)
11. The functional unit of DNA replication is called?
Asked in: 2016, 2018, 2021, 2024 — (4 times)
12. The process of conversion of mRNA into protein is known as?
Asked in: 2017, 2019, 2022, 2024 — (4 times)
13. What is the function of the loop of Henle?
Asked in: 2017, 2019, 2020, 2023 — (4 times)
14. Which phylum shows radial symmetry?
Asked in: 2016, 2018, 2021, 2023 — (4 times)
15. The universal source of energy for all life forms is?
Asked in: 2016, 2019, 2021, 2024 — (4 times)
16. Which organ produces insulin?
Asked in: 2017, 2018, 2020, 2023 — (4 times)
17. Which blood group is the universal donor?
Asked in: 2016, 2019, 2022, 2024 — (4 times)
18. Which structure connects the placenta to the embryo?
Asked in: 2016, 2018, 2020, 2023 — (4 times)
19. The semi-permeable membrane in osmosis allows?
Asked in: 2017, 2019, 2021, 2024 — (4 times)
20. The primary consumer in a food chain is usually?
Asked in: 2016, 2018, 2020, 2023 — (4 times)
Share for more questions from each subject like this
https://t.me/neet_bundle
👍11😱5🤩1
🧬 Major Biological Discoveries Timeline
Ancient to 19th Century
384–322 BCE – Aristotle classifies animals based on shared characteristics, laying the foundation for taxonomy.
1665 – Robert Hooke observes "cells" in cork using a microscope.
1674 – Antonie van Leeuwenhoek discovers protozoa; later observes bacteria in 1683.
1796 – Edward Jenner develops the smallpox vaccine, pioneering immunology.
1838–1839 – Schleiden and Schwann propose the cell theory, stating that all living things are composed of cells.
1859 – Charles Darwin publishes On the Origin of Species, introducing the theory of evolution by natural selection.
1865 – Gregor Mendel presents the laws of inheritance based on pea plant experiments.
1869 – Friedrich Miescher isolates "nuclein" (now known as DNA) from white blood cells.
20th Century
1911 – Thomas Hunt Morgan demonstrates that genes are located on chromosomes.
1928 – Alexander Fleming discovers penicillin, the first true antibiotic.
1953 – James Watson and Francis Crick describe the double-helix structure of DNA.
1958 – Meselson and Stahl confirm the semiconservative mechanism of DNA replication.
1961 – Sydney Brenner, François Jacob, and Matthew Meselson identify messenger RNA (mRNA).
1966 – The genetic code is fully deciphered, linking nucleotide sequences to amino acids.
1977 – Frederick Sanger develops the chain-termination method for DNA sequencing.
1990 – The Human Genome Project is launched, aiming to map all human genes.
21st Century
2003 – The Human Genome Project is completed, mapping the entire human genome.
2012 – CRISPR-Cas9 gene-editing technology is developed, revolutionizing genetic engineering.
2023 – Researchers partially reconstruct the genome of LUCA (Last Universal Common Ancestor), providing insights into early life on Earth.
Ancient to 19th Century
384–322 BCE – Aristotle classifies animals based on shared characteristics, laying the foundation for taxonomy.
1665 – Robert Hooke observes "cells" in cork using a microscope.
1674 – Antonie van Leeuwenhoek discovers protozoa; later observes bacteria in 1683.
1796 – Edward Jenner develops the smallpox vaccine, pioneering immunology.
1838–1839 – Schleiden and Schwann propose the cell theory, stating that all living things are composed of cells.
1859 – Charles Darwin publishes On the Origin of Species, introducing the theory of evolution by natural selection.
1865 – Gregor Mendel presents the laws of inheritance based on pea plant experiments.
1869 – Friedrich Miescher isolates "nuclein" (now known as DNA) from white blood cells.
20th Century
1911 – Thomas Hunt Morgan demonstrates that genes are located on chromosomes.
1928 – Alexander Fleming discovers penicillin, the first true antibiotic.
1953 – James Watson and Francis Crick describe the double-helix structure of DNA.
1958 – Meselson and Stahl confirm the semiconservative mechanism of DNA replication.
1961 – Sydney Brenner, François Jacob, and Matthew Meselson identify messenger RNA (mRNA).
1966 – The genetic code is fully deciphered, linking nucleotide sequences to amino acids.
1977 – Frederick Sanger develops the chain-termination method for DNA sequencing.
1990 – The Human Genome Project is launched, aiming to map all human genes.
21st Century
2003 – The Human Genome Project is completed, mapping the entire human genome.
2012 – CRISPR-Cas9 gene-editing technology is developed, revolutionizing genetic engineering.
2023 – Researchers partially reconstruct the genome of LUCA (Last Universal Common Ancestor), providing insights into early life on Earth.
👍6
🔬 TOP Biology Points for NEET Preparation (Must-Know Concepts)
🧬 Class 11: Diversity of Living Organisms to Plant Physiology
1. Binomial Nomenclature: Genus + species format, e.g., Homo sapiens.
2. Five Kingdom Classification: Based on cell structure, mode of nutrition, body organization.
3. Viruses lack cellular structure but have genetic material (DNA/RNA).
4. Lichen = Symbiosis of Algae (food) + Fungi (shelter).
5. Monera (Bacteria) are prokaryotic; only kingdom with peptidoglycan in cell wall.
6. Gymnosperms have naked seeds; angiosperms have covered seeds.
7. Xylem = water transport; Phloem = food transport.
8. C4 pathway plants (e.g., maize) are more efficient in hot climates than C3 plants.
9. CAM plants (e.g., cactus) open stomata at night to prevent water loss.
10. Photosystem I and II are involved in the light reaction of photosynthesis.
🧠 Class 11: Human Physiology
11. Saliva contains amylase, starts digestion of starch.
12. Pepsin in stomach requires acidic pH (~1.5 to 2).
13. Bile has no enzymes but emulsifies fat to aid digestion.
14. Nephron is functional unit of kidney; filtration occurs in Bowman’s capsule.
15. Insulin lowers blood sugar; glucagon increases it (both from pancreas).
16. SA Node = Pacemaker of heart; initiates heartbeat.
17. Oxygen transport: 98.5% by hemoglobin, rest dissolved in plasma.
18. Synapse = Junction between two neurons, uses neurotransmitters.
19. Hormones are secreted directly into the blood (ductless glands).
20. Reflex arc involves sensory neuron → spinal cord → motor neuron.
---
🌱 Class 12: Reproduction to Ecology
21. Pollen grain is male gametophyte, ovule is female gametophyte.
22. Double fertilization is unique to angiosperms.
23. Ovulation occurs on day 14 of menstrual cycle (average 28-day cycle).
24. Testosterone from Leydig cells, Estrogen from Graafian follicle.
25. Down’s Syndrome = Trisomy 21; 47 chromosomes.
26. Law of Independent Assortment applies when genes are on different chromosomes.
27. DNA replication is semi-conservative – one old and one new strand.
28. mRNA is made in nucleus, translated in cytoplasm at ribosomes.
29. Lac operon is an example of gene regulation in prokaryotes.
30. Genetic code is universal, triplet, and degenerate (multiple codons for same amino acid).
🌍 Biotech, Evolution, Ecology
31. Restriction enzymes cut DNA at specific sites – used in genetic engineering.
32. PCR (Polymerase Chain Reaction) amplifies DNA fragments.
33. Bt toxin gene from Bacillus thuringiensis used in GM crops.
34. Darwin’s theory: Natural selection, survival of the fittest.
35. Hardy-Weinberg principle: p² + 2pq + q² = 1 (genetic equilibrium).
36. Greenhouse gases: CO₂, CH₄, N₂O, water vapor.
37. Ozone layer absorbs UV radiation; CFCs destroy ozone.
38. Biomagnification: Toxin levels increase up the food chain.
39. BOD (Biological Oxygen Demand): Indicator of organic pollution in water.
40. Mycorrhiza = Fungi + plant roots: increases nutrient absorption.
🧬 Class 11: Diversity of Living Organisms to Plant Physiology
1. Binomial Nomenclature: Genus + species format, e.g., Homo sapiens.
2. Five Kingdom Classification: Based on cell structure, mode of nutrition, body organization.
3. Viruses lack cellular structure but have genetic material (DNA/RNA).
4. Lichen = Symbiosis of Algae (food) + Fungi (shelter).
5. Monera (Bacteria) are prokaryotic; only kingdom with peptidoglycan in cell wall.
6. Gymnosperms have naked seeds; angiosperms have covered seeds.
7. Xylem = water transport; Phloem = food transport.
8. C4 pathway plants (e.g., maize) are more efficient in hot climates than C3 plants.
9. CAM plants (e.g., cactus) open stomata at night to prevent water loss.
10. Photosystem I and II are involved in the light reaction of photosynthesis.
🧠 Class 11: Human Physiology
11. Saliva contains amylase, starts digestion of starch.
12. Pepsin in stomach requires acidic pH (~1.5 to 2).
13. Bile has no enzymes but emulsifies fat to aid digestion.
14. Nephron is functional unit of kidney; filtration occurs in Bowman’s capsule.
15. Insulin lowers blood sugar; glucagon increases it (both from pancreas).
16. SA Node = Pacemaker of heart; initiates heartbeat.
17. Oxygen transport: 98.5% by hemoglobin, rest dissolved in plasma.
18. Synapse = Junction between two neurons, uses neurotransmitters.
19. Hormones are secreted directly into the blood (ductless glands).
20. Reflex arc involves sensory neuron → spinal cord → motor neuron.
---
🌱 Class 12: Reproduction to Ecology
21. Pollen grain is male gametophyte, ovule is female gametophyte.
22. Double fertilization is unique to angiosperms.
23. Ovulation occurs on day 14 of menstrual cycle (average 28-day cycle).
24. Testosterone from Leydig cells, Estrogen from Graafian follicle.
25. Down’s Syndrome = Trisomy 21; 47 chromosomes.
26. Law of Independent Assortment applies when genes are on different chromosomes.
27. DNA replication is semi-conservative – one old and one new strand.
28. mRNA is made in nucleus, translated in cytoplasm at ribosomes.
29. Lac operon is an example of gene regulation in prokaryotes.
30. Genetic code is universal, triplet, and degenerate (multiple codons for same amino acid).
🌍 Biotech, Evolution, Ecology
31. Restriction enzymes cut DNA at specific sites – used in genetic engineering.
32. PCR (Polymerase Chain Reaction) amplifies DNA fragments.
33. Bt toxin gene from Bacillus thuringiensis used in GM crops.
34. Darwin’s theory: Natural selection, survival of the fittest.
35. Hardy-Weinberg principle: p² + 2pq + q² = 1 (genetic equilibrium).
36. Greenhouse gases: CO₂, CH₄, N₂O, water vapor.
37. Ozone layer absorbs UV radiation; CFCs destroy ozone.
38. Biomagnification: Toxin levels increase up the food chain.
39. BOD (Biological Oxygen Demand): Indicator of organic pollution in water.
40. Mycorrhiza = Fungi + plant roots: increases nutrient absorption.
👍2