Biology | Class 12

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    Chapter 15 Homeostasis ( 32 videos)  (Practice Test)

      15.1: Elements of Homeostasis (Practice Test)
      Osmoregulation, Thermoregulation and Excretion
    1. Osmoregulation, Thermoregulation and Excretion
      29601 views
      2. Concept of Feedback
    2. Concept of Feedback
      8080 views
      15.2: Osmoregulation (Practice Test)
      Osmoregulation in Animals
    1. Osmoregulation in Animals
      17204 views
      2. Osmoregulation in Different Environments
    2. Osmoregulation in Different Environments
      12639 views
      3. Marine Environments
    3. Marine Environments
      8056 views
      4. Terrestrial Environments
    4. Terrestrial Environments
      5959 views
      15.3: Excretion (Practice Test)
      Excretion in Animals
    1. Excretion in Animals
      9564 views
      2. Nature of Excretory Products in Relation to Habitats
    2. Nature of Excretory Products in Relation to Habitats
      7312 views
      3. Uric Acid
    3. Uric Acid
      6574 views
      4. Urea
    4. Urea
      5312 views
      5. Excretion in Human
    5. Excretion in Human
      7212 views
      6. Urinary system
    6. Urinary system
      9245 views
      7. Structure of Kidney
    7. Structure of Kidney
      49113 views
      8. Structure of Nephron
    8. Structure of Nephron
      11277 views
      9. Blood Circulation to Nephron
    9. Blood Circulation to Nephron
      6650 views
      10. Type of Nephron
    10. Type of Nephron
      7109 views
      11. Functions of Kidney
    11. Functions of Kidney
      9917 views
      12. Urea Formation , Kidney Filtration
    12. Urea Formation , Kidney Filtration
      3968 views
      13. Effect of Hormones on The Working of Kidney
    13. Effect of Hormones on The Working of Kidney
      4107 views
      14. Kidney as Osmoregulatory Organ
    14. Kidney as Osmoregulatory Organ
      12046 views
      15.4: Disorders of Urinary Tract (Practice Test)
      Urinary Tract Infections (UTIs)
    1. Urinary Tract Infections (UTIs)
      3371 views
      2. Kidney Stone
    2. Kidney Stone
      4168 views
      3. Lithotripsy
    3. Lithotripsy
      3666 views
      4. Kidney (Renal) Failure, Dialysis
    4. Kidney (Renal) Failure, Dialysis
      13435 views
      5. Peritoneal Dialysis
    5. Peritoneal Dialysis
      20631 views
      6. Kidney Transplant
    6. Kidney Transplant
      5706 views
      7. Kidney Transplant
    7. Kidney Transplant
      2333 views
      15.5: Thermoregulation (Practice Test)
      Classification of Animals on the Basis of Their Body Temperature
    1. Classification of Animals on the Basis of Their Body Temperature
      6239 views
      2. Classification of Animals on the Basis of Heat Production
    2. Classification of Animals on the Basis of Heat Production
      3. Regulation of Heat Exchange Between Animals and Environment
    3. Regulation of Heat Exchange Between Animals and Environment
      4544 views
      4. Regulatory Strategies
    4. Regulatory Strategies
      3674 views
      5. The Role of the Skin
    5. The Role of the Skin
      178 views

    Chapter 16 Support And Movement ( 34 videos)  (Practice Test)

      16.1: Human Skeleton (Practice Test)
      Endoskeleton
    1. Endoskeleton
      3406 views
      2. Bones
    2. Bones
      10019 views
      3. Cartilages
    3. Cartilages
      6653 views
      4. Human Skeleton, Axial Skeleton
    4. Human Skeleton, Axial Skeleton
      38474 views
      5. Skull
    5. Skull
      3485 views
      6. Ribs
    6. Ribs
      2583 views
      7. Vertebral Column
    7. Vertebral Column
      9 views
      8. Appendicular Skeleton
    8. Appendicular Skeleton
      8148 views
      9. Pelvic Girdle
    9. Pelvic Girdle
      3262 views
      10. Pectoral Girdle and Forelimb
    10. Pectoral Girdle and Forelimb
      11. Hind Limb
    11. Hind Limb
      12. Functions of Skeletal System
    12. Functions of Skeletal System
      2927 views
      13. More on Joints
    13. More on Joints
      3205 views
      14. Types of Joints
    14. Types of Joints
      11695 views
      15. Synovial Joint
    15. Synovial Joint
      4692 views
      16.2: Disorders of Skeleton (Practice Test)
      Spondylosis
    1. Spondylosis
      3761 views
      2. Sciatica
    2. Sciatica
      4201 views
      3. Disc-Slip
    3. Disc-Slip
      6459 views
      4. Arthritis and its Types
    4. Arthritis and its Types
      1679 views
      5. Repair of Broken Bones
    5. Repair of Broken Bones
      8478 views
      6. Joint Injuries
    6. Joint Injuries
      16.3: Muscles (Practice Test)
      Muscular System
    1. Muscular System
      4186 views
      2. Muscles and Movements
    2. Muscles and Movements
      7571 views
      3. Skeletal Muscles , Skeletal Muscle Fibre
    3. Skeletal Muscles , Skeletal Muscle Fibre
      12189 views
      4. More on Skeletal Muscles , Skeletal Muscle Fibre
    4. More on Skeletal Muscles , Skeletal Muscle Fibre
      8763 views
      5. Ultra Structure of Microfilaments
    5. Ultra Structure of Microfilaments
      6912 views
      6. Sliding Filament Model
    6. Sliding Filament Model
      8807 views
      7. How Bridges are Controlled
    7. How Bridges are Controlled
      5968 views
      8. Controlling the Actin-Myosin Interaction by Ca++ ions
    8. Controlling the Actin-Myosin Interaction by Ca++ ions
      11088 views
      9. Arrangement of Skeletal Muscles for Skeletal Movement
    9. Arrangement of Skeletal Muscles for Skeletal Movement
      4024 views
      10. Movement in Knee Joint
    10. Movement in Knee Joint
      11. Energy for Muscle Contraction, Muscle Fatigue
    11. Energy for Muscle Contraction, Muscle Fatigue
      6576 views
      12. Tetany, Cramp
    12. Tetany, Cramp
      14328 views
      13. Bacillary Dysentery, Tetanus
    13. Bacillary Dysentery, Tetanus
      2050 views

    Chapter 17 Nervous Coordination ( 32 videos)  (Practice Test)

      17.1: Nervous Coordination (Practice Test)
      Coordinators, Effectors and Response
    1. Coordinators, Effectors and Response
      5570 views
      2. Steps Involved in Coordination
    2. Steps Involved in Coordination
      3863 views
      3. Working Model of The Nervous System
    3. Working Model of The Nervous System
      110 views
      4. Receptors and Its Types
    4. Receptors and Its Types
      2045 views
      5. Nerve cell or Neuron
    5. Nerve cell or Neuron
      14832 views
      6. Neuron Types
    6. Neuron Types
      10302 views
      7. Reflex Action
    7. Reflex Action
      10745 views
      8. Nerve Impulse and Resting Membrane Potential
    8. Nerve Impulse and Resting Membrane Potential
      12246 views
      9. Generation and transmission of nerve impulse
    9. Generation and transmission of nerve impulse
      10. Refractory Period
    10. Refractory Period
      11. Velocities of Nerve Impulse
    11. Velocities of Nerve Impulse
      12. Synapse
    12. Synapse
      11029 views
      13. Classification of Neurotransmitters
    13. Classification of Neurotransmitters
      14. Nervous System
    14. Nervous System
      455 views
      15. Central Nervous System (CNS) Brain
    15. Central Nervous System (CNS) Brain
      10596 views
      16. The Divisions of Brain, Forebrain
    16. The Divisions of Brain, Forebrain
      38557 views
      17. Mid Brain and Hind Brain
    17. Mid Brain and Hind Brain
      11262 views
      18. Spinal cord
    18. Spinal cord
      13955 views
      19. Peripheral Nervous System (PNS)
    19. Peripheral Nervous System (PNS)
      29672 views
      20. More on Peripheral Nervous System (PNS)
    20. More on Peripheral Nervous System (PNS)
      2975 views
      21. Working of Sensory Receptors with Special Reference to Skin
    21. Working of Sensory Receptors with Special Reference to Skin
      4786 views
      17.2: Effects of Drugs On Coordination (Practice Test)
      Effects of Drugs On Nervous Coordination
    1. Effects of Drugs On Nervous Coordination
      2. Drug Addiction And Drug Tolerance
    2. Drug Addiction And Drug Tolerance
      17.3: Disorders of Nervous System and Diagnostic Tests (Practice Test)
      Stroke
    1. Stroke
      849 views
      2. Meningitis
    2. Meningitis
      1315 views
      3. Brain Tumors
    3. Brain Tumors
      1249 views
      4. Headache
    4. Headache
      1311 views
      5. Alzheimer's Disease
    5. Alzheimer's Disease
      3664 views
      6. Parkinson's Disease
    6. Parkinson's Disease
      2833 views
      7. Magnetic Resonance Imaging (MRI)
    7. Magnetic Resonance Imaging (MRI)
      2274 views
      8. CAT - Scanner
    8. CAT - Scanner
      4412 views
      9. Magnetic resonance imaging (MRI)
    9. Magnetic resonance imaging (MRI)
      2210 views

    Chapter 18 Chemical Coordination ( 12 videos)  (Practice Test)

      18.1: Chemical Nature of Hormones (Practice Test)
      Coordinators, Effectors and Receptors
    1. Coordinators, Effectors and Receptors
      2. Chemical Nature of Hormone
    2. Chemical Nature of Hormone
      5946 views
      18.2: Endocrine System of Man (Practice Test)
      Important endocrine gland
    1. Important endocrine gland
      9123 views
      2. Pituitary Gland
    2. Pituitary Gland
      7291 views
      3. Pituitary's Median lobe and posterior lobe
    3. Pituitary's Median lobe and posterior lobe
      4164 views
      4. Thyroid Gland
    4. Thyroid Gland
      10441 views
      5. Parathyroid
    5. Parathyroid
      7905 views
      6. Pancreas
    6. Pancreas
      10728 views
      7. Adrenal Gland
    7. Adrenal Gland
      9392 views
      8. Gonads
    8. Gonads
      8639 views
      9. Role of Nervous System and gastrin Hormone on the Secretion of Gastric Juice
    9. Role of Nervous System and gastrin Hormone on the Secretion of Gastric Juice
      1837 views
      18.3: Feedback Mechanism
      Feed Back Mechanism
    1. Feed Back Mechanism
      11601 views

    Chapter 19 Animal Behaviour ( 11 videos)  (Practice Test)

      19.1: The Nature of Behaviour (Practice Test)
      Relationship Between Stimuli and Behavior
    1. Relationship Between Stimuli and Behavior
      2930 views
      2. Relationship Between Heredity and Behavior
    2. Relationship Between Heredity and Behavior
      3. Biological Clocks and Circadian Rhythms
    3. Biological Clocks and Circadian Rhythms
      11435 views
      19.2: Innate Behaviour (Inborn or Instictive Behaviour) (Practice Test)
      Innate Behavior
    1. Innate Behavior
      11098 views
      2. Non-orientation Behavior
    2. Non-orientation Behavior
      5102 views
      3. More on Innate Behavior
    3. More on Innate Behavior
      3243 views
      19.3: Learning Behaviour (Practice Test)
      Learning Behavior
    1. Learning Behavior
      13699 views
      2. more on Learning Behavior
    2. more on Learning Behavior
      6450 views
      3. Innate Behavior
    3. Innate Behavior
      11098 views
      19.4: Social Learning (Practice Test)
      Social Behaviors
    1. Social Behaviors
      5783 views
      2. More on Social Behaviors
    2. More on Social Behaviors
      4261 views

    Chapter 20 Reproduction ( 16 videos)  (Practice Test)

      20.1: Human Reproductive System (Practice Test)
      Reproduction, Asexual and Sexual reproduction
    1. Reproduction, Asexual and Sexual reproduction
      11247 views
      2. Male Reproductive System
    2. Male Reproductive System
      15700 views
      3. More on Structure of Male Reproductive System
    3. More on Structure of Male Reproductive System
      6253 views
      4. Hormonal Control of Male Reproductive System
    4. Hormonal Control of Male Reproductive System
      5499 views
      5. Function of Male Reproductive System
    5. Function of Male Reproductive System
      5346 views
      6. Female Reproductive System
    6. Female Reproductive System
      15779 views
      7. Function of Female Reproductive System
    7. Function of Female Reproductive System
      8878 views
      8. Menstrual Cycle
    8. Menstrual Cycle
      14343 views
      9. Human Embryonic Development
    9. Human Embryonic Development
      5693 views
      10. Hormonal Control of Reproductive Cycles
    10. Hormonal Control of Reproductive Cycles
      6842 views
      20.2: Disorders of Reproductive System
      Azoospermia and Oligospermia
    1. Azoospermia and Oligospermia
      2. Causes of female infertility
    2. Causes of female infertility
      3. Treatment of Infertility (Invitro Fertilization)
    3. Treatment of Infertility (Invitro Fertilization)
      4. Miscarriage
    4. Miscarriage
      20.3: Sexually Transmitted Diseases (Practice Test)
      Syphilis, Gonorrhea
    1. Syphilis, Gonorrhea
      2. AIDS, A Sexually Transmitted Disease
    2. AIDS, A Sexually Transmitted Disease
      7203 views

    Chapter 21 Development and Aging ( 29 videos)  (Practice Test)

      21.1: Human Embryonic Development (Practice Test)
      Growth and Development in Animals
    1. Growth and Development in Animals
      6203 views
      2. Fertilization and development in rabbit
    2. Fertilization and development in rabbit
      1879 views
      3. Embryo, Embryology and Cleavage
    3. Embryo, Embryology and Cleavage
      7826 views
      4. Different Patterns of Cleavage Based Upon Amount of Yolk
    4. Different Patterns of Cleavage Based Upon Amount of Yolk
      19733 views
      5. Gastrulation
    5. Gastrulation
      41646 views
      6. Neurulation in Human Embryo
    6. Neurulation in Human Embryo
      11165 views
      7. Development of placenta and Major Events of Organogenesis
    7. Development of placenta and Major Events of Organogenesis
      21.2: Control of Development (Practice Test)
      Role of Nucleus in Development
    1. Role of Nucleus in Development
      8441 views
      2. Role of Cytoplasm in Development
    2. Role of Cytoplasm in Development
      8490 views
      3. Hans Spemanns Experiment
    3. Hans Spemanns Experiment
      8604 views
      4. Embryonic Induction (First Experiment)
    4. Embryonic Induction (First Experiment)
      18497 views
      5. Embryonic Induction (Second Experiment)
    5. Embryonic Induction (Second Experiment)
      9140 views
      6. Embryonic Induction (Third Experiment)
    6. Embryonic Induction (Third Experiment)
      16145 views
      21.3: Pregnancy (Practice Test)
      Human Embryonic Development
    1. Human Embryonic Development
      5693 views
      2. Development of Human in First Trimester
    2. Development of Human in First Trimester
      3. Development of placenta and Major Events of Organogenesis
    3. Development of placenta and Major Events of Organogenesis
      4. Second Trimester and Third Trimester
    4. Second Trimester and Third Trimester
      5. The Placenta
    5. The Placenta
      6. Increased ratio of Estrogen to Progesterone
    6. Increased ratio of Estrogen to Progesterone
      7. Identical Twins
    7. Identical Twins
      8. Birth and Lactation
    8. Birth and Lactation
      9. Lactation/Nursing
    9. Lactation/Nursing
      21.4: Embryonic Disorders
      Disorders during embryonic development and Rubella
    1. Disorders during embryonic development and Rubella
      2. Neural Tube defects
    2. Neural Tube defects
      3. limb Abnormalities and Thyroid Gland
    3. limb Abnormalities and Thyroid Gland
      4. Genetic Abnormalities Related to Spontaneous Abortions
    4. Genetic Abnormalities Related to Spontaneous Abortions
      21.5: Aging
      Signs And Symptoms of Aging
    1. Signs And Symptoms of Aging
      2. Aging Factors (Extrinsic and Intrinsic)
    2. Aging Factors (Extrinsic and Intrinsic)
      3. Aging Factors (Extrinsic and Intrinsic) Cont.
    3. Aging Factors (Extrinsic and Intrinsic) Cont.

    Chapter 22 Chromosomes And DNA ( 35 videos)  (Practice Test)

      22.1: Chromosomal Theory of Inheritance (Practice Test)
      The Chromosomal Theory of Inheritance
    1. The Chromosomal Theory of Inheritance
      27027 views
      2. Number and Structure of Chromosome
    2. Number and Structure of Chromosome
      14313 views
      3. Chromosomes as a Carriers of Genes
    3. Chromosomes as a Carriers of Genes
      4638 views
      4. The Nucleus contains Chromosomes
    4. The Nucleus contains Chromosomes
      728 views
      5. Concept of Gene
    5. Concept of Gene
      14952 views
      6. Structure of a Gene
    6. Structure of a Gene
      18435 views
      22.2: DNA as Hereditary Material (Practice Test)
      DNA as Hereditary Material, vehicle
    1. DNA as Hereditary Material, vehicle
      13921 views
      2. More on DNA as Hereditary Material, vehicle
    2. More on DNA as Hereditary Material, vehicle
      10170 views
      22.3: DNA Replication (Practice Test)
      Advance (Watson and Crick's Model)
    1. Advance (Watson and Crick's Model)
      65841 views
      2. Types of Replication
    2. Types of Replication
      5830 views
      3. The Meselson-Stahl Experiment
    3. The Meselson-Stahl Experiment
      13174 views
      4. Mechanism of DNA Replication
    4. Mechanism of DNA Replication
      33400 views
      5. More on Mechanism of DNA Replication
    5. More on Mechanism of DNA Replication
      11768 views
      6. Replication of DNA as a process of Stability and Variability
    6. Replication of DNA as a process of Stability and Variability
      22.4: Gene Expression (Practice Test)
      Transcription
    1. Transcription
      18325 views
      2. Translation
    2. Translation
      15338 views
      3. Genetic Code
    3. Genetic Code
      5380 views
      4. Advance Transcription
    4. Advance Transcription
      4411 views
      5. More on Transcription
    5. More on Transcription
      9405 views
      6. Post-Transcriptional Modification of mRNA
    6. Post-Transcriptional Modification of mRNA
      6465 views
      7. Advance Translation, Protein Synthesis
    7. Advance Translation, Protein Synthesis
      6024 views
      8. More on Translation
    8. More on Translation
      3969 views
      9. Difference between Translation in Prokaryotes and Eukaryotes
    9. Difference between Translation in Prokaryotes and Eukaryotes
      2160 views
      22.5: Regulating Gene Exression (Practice Test)
      Regulation of Gene Expression
    1. Regulation of Gene Expression
      6845 views
      2. Methods of Regulation of Gene Expression
    2. Methods of Regulation of Gene Expression
      4836 views
      3. Mechanism of Negative Control
    3. Mechanism of Negative Control
      1754 views
      4. Mechanism of Positive Control
    4. Mechanism of Positive Control
      1628 views
      5. Relation of Gene Expression with Introns and Exons
    5. Relation of Gene Expression with Introns and Exons
      22.6: Mutation (Practice Test)
      Mutations
    1. Mutations
      6593 views
      2. Origin of Mutation
    2. Origin of Mutation
      3. Types of Mutation
    3. Types of Mutation
      4. Importance of Mutation
    4. Importance of Mutation
      2822 views
      5. Chromosomal Mutations
    5. Chromosomal Mutations
      5795 views
      6. Turner Syndrome
    6. Turner Syndrome
      4338 views
      7. Point Mutation
    7. Point Mutation
      2870 views

    Chapter 23 Inheritance ( 30 videos)  (Practice Test)

      23.1: Laws of Mendel (Practice Test)
      Mendel's Interpretation
    1. Mendel's Interpretation
      5460 views
      2. Mendel’s Law of Segregation
    2. Mendel’s Law of Segregation
      28037 views
      3. Mendel’s Law of Independent Assortment
    3. Mendel’s Law of Independent Assortment
      19410 views
      4. Punnet Square, Test Cross
    4. Punnet Square, Test Cross
      4894 views
      5. Incomplete Dominance
    5. Incomplete Dominance
      8390 views
      6. Co-Dominance
    6. Co-Dominance
      8185 views
      7. Multiple Alleles
    7. Multiple Alleles
      7716 views
      8. ABO-Blood Group System
    8. ABO-Blood Group System
      9962 views
      9. ABO Blood Group System
    9. ABO Blood Group System
      5186 views
      10. Rh Blood Group System
    10. Rh Blood Group System
      675 views
      11. Erythroblastosis Fetalis
    11. Erythroblastosis Fetalis
      8852 views
      12. Wheat Grain Colour
    12. Wheat Grain Colour
      4859 views
      13. Human Skin Colour
    13. Human Skin Colour
      3448 views
      14. Epistasis
    14. Epistasis
      9802 views
      15. Coat Colour in Labrador Retriever
    15. Coat Colour in Labrador Retriever
      16. Gene Linkage
    16. Gene Linkage
      11098 views
      17. Crossing Over
    17. Crossing Over
      24910 views
      18. Sex Linkage
    18. Sex Linkage
      1374 views
      19. Sex Linkage in Drosophila
    19. Sex Linkage in Drosophila
      12208 views
      20. Patterns of Sex Determination
    20. Patterns of Sex Determination
      3770 views
      21. Sex Determination, Chromosome in Drosophila
    21. Sex Determination, Chromosome in Drosophila
      5522 views
      22. Chromosome in Man
    22. Chromosome in Man
      2013 views
      23. Y- linked Inheritance
    23. Y- linked Inheritance
      4588 views
      24. Sex Limited Trait, Sex Influenced trait
    24. Sex Limited Trait, Sex Influenced trait
      7895 views
      25. X- linked Recessive Inheritance
    25. X- linked Recessive Inheritance
      4883 views
      26. X- linked Dominant Inheritance
    26. X- linked Dominant Inheritance
      5677 views
      27. Haemophilia
    27. Haemophilia
      4161 views
      28. More on Haemophilia
    28. More on Haemophilia
      2149 views
      29. Sex Linkage, Colour Blindness
    29. Sex Linkage, Colour Blindness
      8494 views
      30. Genetics of Muscular Dystrophy
    30. Genetics of Muscular Dystrophy

    Chapter 24 Evolution ( 18 videos)  (Practice Test)

      24.1: Evolution
      Concept of Evolution VS Special Creation
    1. Concept of Evolution VS Special Creation
      7210 views
      24.2: Evidences of Evolution (Practice Test)
      Evidence From Biogeography and Paleontology
    1. Evidence From Biogeography and Paleontology
      2. Biogeography, The Fossil Record and Comparative Anatomy
    2. Biogeography, The Fossil Record and Comparative Anatomy
      5051 views
      3. Comparative Embryology and Molecular Biology
    3. Comparative Embryology and Molecular Biology
      3493 views
      24.3: Evolution of Eukaryotes from Prokaryotes (Practice Test)
      Evolution From Prokaryotes to Eukaryotes
    1. Evolution From Prokaryotes to Eukaryotes
      10401 views
      24.4: Lamarckism (Practice Test)
      Inheritance of Acquired Characteristics
    1. Inheritance of Acquired Characteristics
      5921 views
      2. Objections on Lamarckian Theory
    2. Objections on Lamarckian Theory
      3708 views
      24.5: Darwinism (Practice Test)
      Theory of Natural Selection
    1. Theory of Natural Selection
      11343 views
      2. More on Theory of Natural Selection
    2. More on Theory of Natural Selection
      2449 views
      3. Alfred Russell Wallace
    3. Alfred Russell Wallace
      770 views
      24.6: Neo Darwinism (Practice Test)
      Neo-Darwinism - The Modern Evolutionary Synthesis
    1. Neo-Darwinism - The Modern Evolutionary Synthesis
      9034 views
      2. Hardy-Weinberg Law And Its Implication
    2. Hardy-Weinberg Law And Its Implication
      3. More on Hardy-Weinberg Theorem
    3. More on Hardy-Weinberg Theorem
      4284 views
      4. Factors Affecting Gene Frequency
    4. Factors Affecting Gene Frequency
      4267 views
      5. Genetic Drift
    5. Genetic Drift
      2755 views
      6. Allopatric Speciation
    6. Allopatric Speciation
      1564 views
      7. Sympatric Speciation
    7. Sympatric Speciation
      2030 views
      8. Parapatry Speciation
    8. Parapatry Speciation

    Chapter 25 Man And His Environment ( 38 videos)  (Practice Test)

      25.1: Biogeochemical Cycle (Practice Test)
      Relationship of Biological Cycle With Flow of Energy and Ecological Balance
    1. Relationship of Biological Cycle With Flow of Energy and Ecological Balance
      829 views
      2. Water Cycle
    2. Water Cycle
      9015 views
      3. Underground Water
    3. Underground Water
      242 views
      4. The Nitrogen Cycle
    4. The Nitrogen Cycle
      3523 views
      5. More on Nitrogen Cycle
    5. More on Nitrogen Cycle
      1332 views
      6. The Nitrogen Cycle
    6. The Nitrogen Cycle
      3905 views
      25.2: The Flow of Energy (Practice Test)
      Trophic Levels
    1. Trophic Levels
      517 views
      2. Concept of Trophic Levels
    2. Concept of Trophic Levels
      3. Energy Relations Between Different Trophic Levels
    3. Energy Relations Between Different Trophic Levels
      566 views
      4. Concept of Productivity
    4. Concept of Productivity
      5. Ecological Pyramids
    5. Ecological Pyramids
      3570 views
      6. Ecological Pyramids Biomass
    6. Ecological Pyramids Biomass
      4800 views
      7. Ecological Pyramids Number
    7. Ecological Pyramids Number
      2412 views
      25.3: Ecological Succession (Practice Test)
      Succession
    1. Succession
      3668 views
      2. Two Major Form of Succession
    2. Two Major Form of Succession
      1999 views
      3. Secondary Succession
    3. Secondary Succession
      1248 views
      4. Stages of Succession
    4. Stages of Succession
      3627 views
      5. Xerosere
    5. Xerosere
      2174 views
      6. More on Xerosere
    6. More on Xerosere
      903 views
      7. Hydrosere
    7. Hydrosere
      844 views
      8. More on Hydrosere
    8. More on Hydrosere
      575 views
      9. Wood land climax forest stage of hydrosere
    9. Wood land climax forest stage of hydrosere
      430 views
      25.4: Population Dynamics
      Principles of Demography
    1. Principles of Demography
      2. Human Impact on Environment
    2. Human Impact on Environment
      25.5: Human Impact on Environment (Practice Test)
      Human Impact on Environment
    1. Human Impact on Environment
      2. Nuclear Power
    2. Nuclear Power
      1342 views
      3. Carbon Dioxide and Global warming
    3. Carbon Dioxide and Global warming
      1142 views
      4. Global Warming
    4. Global Warming
      1378 views
      5. Global Warming
    5. Global Warming
      4039 views
      6. Effect of Global Warming
    6. Effect of Global Warming
      1973 views
      7. Acid Rain
    7. Acid Rain
      6450 views
      8. Effect of Acid Rain
    8. Effect of Acid Rain
      3475 views
      9. Depletion of Ozone
    9. Depletion of Ozone
      6088 views
      25.6: Environmental Resources and their Depletion (Practice Test)
      Renewable and Non-Renewable Resources
    1. Renewable and Non-Renewable Resources
      4895 views
      2. Renewable Resources (Land and Wildlife)
    2. Renewable Resources (Land and Wildlife)
      1832 views
      3. Degradation and Depletion of Resources, Modification of Environment
    3. Degradation and Depletion of Resources, Modification of Environment
      4. Conventional Energy Resources
    4. Conventional Energy Resources
      1877 views
      5. Non - Conventional Energy Resources
    5. Non - Conventional Energy Resources
      2347 views

    Chapter 26 Biotechnology ( 55 videos)  (Practice Test)

      26.1: Cloning of Genes (Practice Test)
      Scope and Importance of Biotechnology
    1. Scope and Importance of Biotechnology
      6326 views
      2. Biotechnology, The Genetic Engineering
    2. Biotechnology, The Genetic Engineering
      11062 views
      3. Recombinant DNA Technology
    3. Recombinant DNA Technology
      27401 views
      4. Advance Recombinant DNA Technology, How to Get a Gene
    4. Advance Recombinant DNA Technology, How to Get a Gene
      5232 views
      5. Recombinant DNA Technology Depends on Enzymes
    5. Recombinant DNA Technology Depends on Enzymes
      2943 views
      6. Molecular Scissor: Restriction Endonucleases
    6. Molecular Scissor: Restriction Endonucleases
      5696 views
      7. DNA Ligase and Expression System
    7. DNA Ligase and Expression System
      2946 views
      8. Molecular Carrier: Vector
    8. Molecular Carrier: Vector
      5827 views
      9. Molecular Carrier (Vector) Plasmid and Bacteriophage
    9. Molecular Carrier (Vector) Plasmid and Bacteriophage
      2878 views
      10. The Polymerase Chain Reaction
    10. The Polymerase Chain Reaction
      4706 views
      11. Components of PCR
    11. Components of PCR
      3158 views
      12. Mechanism of PCR
    12. Mechanism of PCR
      3492 views
      13. Applications of PCR
    13. Applications of PCR
      8141 views
      14. Genomic Library
    14. Genomic Library
      8864 views
      26.2: DNA Sequencing (Practice Test)
      DNA Sequencing
    1. DNA Sequencing
      5611 views
      2. Maxam-Gillbert Method
    2. Maxam-Gillbert Method
      10323 views
      3. Automated DNA Sequencing
    3. Automated DNA Sequencing
      10490 views
      4. Gel Electrophoresis
    4. Gel Electrophoresis
      3376 views
      5. Visualization of DNA Fragments In DNA Sequencing
    5. Visualization of DNA Fragments In DNA Sequencing
      589 views
      26.3: DNA Analysis (Practice Test)
      Analyzing DNA
    1. Analyzing DNA
      4331 views
      2. Procedures of DNA Analysis
    2. Procedures of DNA Analysis
      6986 views
      3. Autoradiography
    3. Autoradiography
      20898 views
      4. Application of DNA Analysis
    4. Application of DNA Analysis
      2475 views
      26.4: Genome Map (Practice Test)
      Genome Analysis
    1. Genome Analysis
      3995 views
      2. The Human Genome Project
    2. The Human Genome Project
      5217 views
      3. Benefits of Human Genome Project
    3. Benefits of Human Genome Project
      2514 views
      26.5: Tissue Culture (Practice Test)
      Tissue Culture
    1. Tissue Culture
      9223 views
      2. Types of Tissue Culture
    2. Types of Tissue Culture
      5201 views
      3. Cell Suspension Culture
    3. Cell Suspension Culture
      14509 views
      4. Callus Culture
    4. Callus Culture
      21539 views
      5. Protoplast Culture
    5. Protoplast Culture
      19485 views
      6. Anther / Pollen Culture
    6. Anther / Pollen Culture
      36430 views
      7. Embryo Culture
    7. Embryo Culture
      23875 views
      8. Ovary Culture
    8. Ovary Culture
      10521 views
      9. Meristem Culture
    9. Meristem Culture
      12441 views
      10. Animal Cell Culture
    10. Animal Cell Culture
      5484 views
      11. Techniques of Animal Cell Culture
    11. Techniques of Animal Cell Culture
      8390 views
      12. Application of Animal Cell Culture
    12. Application of Animal Cell Culture
      4389 views
      26.6: Transgenic Bacteria, Plants and Animals (Practice Test)
      Transgenic Bacteria
    1. Transgenic Bacteria
      3120 views
      2. Role of Transgenic Bacteria in Human Welfare
    2. Role of Transgenic Bacteria in Human Welfare
      3035 views
      3. Transgenic Plants
    3. Transgenic Plants
      8973 views
      4. Transgenic Animals
    4. Transgenic Animals
      3843 views
      5. Uses and Applications of Biotechnology( With Reference to Animals)
    5. Uses and Applications of Biotechnology( With Reference to Animals)
      288 views
      6. Uses and Applications of Biotechnology( With Reference to Animals)
    6. Uses and Applications of Biotechnology( With Reference to Animals)
      538 views
      7. Application of Genetically Modified Bacteria
    7. Application of Genetically Modified Bacteria
      2437 views
      8. Ecological Concerns surrounding Transgenic Bacteria
    8. Ecological Concerns surrounding Transgenic Bacteria
      842 views
      26.7: Biotechnology and Health Care (Practice Test)
      Uses and Applications of Biotechnology( With Reference to Plants)
    1. Uses and Applications of Biotechnology( With Reference to Plants)
      381 views
      2. DNA/RNA Probes
    2. DNA/RNA Probes
      2952 views
      3. DNA/RNA Probes
    3. DNA/RNA Probes
      11520 views
      4. Monoclonal Antibodies in Diagnosis of Diseases
    4. Monoclonal Antibodies in Diagnosis of Diseases
      1930 views
      5. Gene Therapy
    5. Gene Therapy
      4158 views
      6. Gene Therapy (Ex-Vivo)
    6. Gene Therapy (Ex-Vivo)
      3917 views
      7. Gene Therapy In-Vivo Method
    7. Gene Therapy In-Vivo Method
      2883 views
      8. Role of Biotechnology in Diagnosis of Diseases
    8. Role of Biotechnology in Diagnosis of Diseases
      2189 views
      9. Cystic Fibrosis
    9. Cystic Fibrosis
      2080 views

    Chapter 27 Biology and Human Welfare ( 12 videos)  (Practice Test)

      27.1: Vaccination and Integrated Disease Management
      Types of Vaccines
    1. Types of Vaccines
      2. Immunization and Vaccination
    2. Immunization and Vaccination
      4678 views
      3. Schedual of vaccination against common diseases
    3. Schedual of vaccination against common diseases
      27.2: Animal Husbandary
      Animal Husbandry
    1. Animal Husbandry
      27.3: Latest Techniques Applied to Enhance Crop and Fruit Yield
      Methods of Plant Breeding for Crop Improvement
    1. Methods of Plant Breeding for Crop Improvement
      2. Vertical farming
    2. Vertical farming
      3. Acclimatization And Backcross
    3. Acclimatization And Backcross
      27.4: Home Gardening
      Improvement of Home Gardening
    1. Improvement of Home Gardening
      27.5: Role of Microbes in Human Welfare (Practice Test)
      Beneficial Bacteria, Harmful Bacteria
    1. Beneficial Bacteria, Harmful Bacteria
      7001 views
      2. Fermentation
    2. Fermentation
      8225 views
      3. Bioremediation
    3. Bioremediation
      1405 views
      4. Role of Microbes in Energy Generation
    4. Role of Microbes in Energy Generation