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Class XII Biology 'NCERT Book Explained' Videos

XII NCERT Video Course 23A


1.1 Asexual Reproduction
1.2 Sexual Reproduction
1.2.1 Pre-fertilisation Events
1.2.1.1 Gametogenesis
1.2.1.2 Gamete Transfer

XII NCERT Video Course 23B


1.2.2 Fertilisation
1.2.3 Post-fertilisation Events
1.2.3.1 The Zygote
1.2.3.2 Embryogenesis

XII NCERT Video Course 24A



2.1 Flower – A Fascinating Organ of Angiosperms

XII NCERT Video Course 24B


2.2 Pre-fertilisation : Structures and Events
2.2.1 Stamen, Microsporangium and Pollen Grain
2.2.2 The Pistil, Megasporangium (ovule) and Embryo sac

XII NCERT Video Course 24C


2.2.3 Pollination
Autogamy
Geitonogamy
Xenogamy
Agents of Pollination
Outbreeding Devices
Pollen-pistil Interaction

XII NCERT Video Course 24D


2.3 Double Fertilisation
2.4 Post-fertilisation: Structures and Events
2.4.1 Endosperm
2.4.2 Embryo

XII NCERT Video Course 24E


2.4.3 Seed
2.5 Apomixis and Polyembryony

XII NCERT Video Course 25A



3.1 The Male Reproductive System

XII NCERT Video Course 25B


3.2 The Female Reproductive System

XII NCERT Video Course 25C


3.3 Gametogenesis

XII NCERT Video Course 25D


3.4 Menstrual Cycle

XII NCERT Video Course 25E


3.5 Fertilisation and Implantation
3.6 Pregnancy and Embryonic Development
3.7 Parturition and Lactation

XII NCERT Video Course 26A



4.1 Reproductive Health – Problems and Strategies

XII NCERT Video Course 26B


4.2 Population Explosion and Birth Control
4.3 Medical Termination of Pregnancy

XII NCERT Video Course 26C


4.4 Sexually Transmitted Diseases
4.5 Infertility

XII NCERT Video Course 27A


5.1 Mendel’s Laws of Inheritance
5.2 Inheritance of One Gene
5.2.1 Law of Dominance
5.2.2 Law of Segregation
5.2.2.1 Incomplete Dominance
5.2.2.2 Co-dominance

XII NCERT Video Course 27B


5.3 Inheritance of Two Genes
5.3.1 Law of Independent Assortment

XII NCERT Video Course 27C


5.3.2 Chromosomal Theory of Inheritance

XII NCERT Video Course 27D


5.3.3 Linkage and Recombination

XII NCERT Video Course 27E


5.4 Sex Determination
5.4.1 Sex Determination in Humans

XII NCERT Video Course 27F


5.5 Mutation
5.6 Genetic Disorders

XII NCERT Video Course 27G


5.6.1 Pedigree Analysis
5.6.2 Mendelian Disorders
Haemophilia
Sickle-cell anaemia
Phenylketonuria
5.6.3 Chromosomal disorders
Down’s Syndrome
Klinefelter’s Syndrome
Turner’s Syndrome

XII NCERT Video Course 28A



6.1 The DNA
6.1.1 Structure of Polynucleotide Chain
6.1.2 Packaging of DNA Helix
6.2 The Search for Genetic Material
Transforming Principle
Biochemical Characterisation of Transforming Principle
6.2.1 The Genetic Material is DNA

XII NCERT Video Course 28B


6.2.2 Properties of Genetic Material (DNA versus RNA)
6.3 RNA World

XII NCERT Video Course 28C


6.4 Replication
6.4.1 The Experimental Proof
6.4.2 The Machinery and the Enzymes

XII NCERT Video Course 28D


6.5 Transcription
6.5.1 Transcription Unit
6.5.2 Transcription Unit and the Gene
6.5.3 Types of RNA and the process of Transcription

XII NCERT Video Course 28E


6.6 Genetic Code
6.6.1 Mutations and Genetic Code
6.6.2 tRNA– the Adapter Molecule

XII NCERT Video Course 28F


6.7 Translation

XII NCERT Video Course 28G


6.8 Regulation of Gene Expression
6.8.1 The Lac operon

XII NCERT Video Course 28H


6.9 Human Genome Project
6.9.1 Salient Features of Human Genome
6.9.2 Applications and Future Challenges

XII NCERT Video Course 28I


6.10 DNA Fingerprinting

XII NCERT Video Course 29A



7.1 Origin of Life
7.2 Evolution of Life Forms - A Theory
7.3 What are the Evidences for Evolution?
7.4 What is Adaptive Radiation?
7.5 Biological Evolution

XII NCERT Video Course 29B


7.6 Mechanism of Evolution
7.7 Hardy - Weinberg Principle
7.8 A Brief Account of Evolution

XII NCERT Video Course 29C


7.9 Origin and Evolution of Man

XII NCERT Video Course 30A



8.1 Common Diseases in Humans

XII NCERT Video Course 30B


8.2 Immunity
8.2.1 Innate Immunity
Physical barriers
Cellular barriers
Physiological barriers
Cytokine barriers
8.2.2 Acquired Immunity
8.2.3 Active and Passive Immunity
8.2.4 Vaccination and Immunisation
8.2.5 Allergies
8.2.6 Auto Immunity

XII NCERT Video Course 30C


8.2.7 Immune System in the Body
Lymphoid organs

XII NCERT Video Course 30D


8.3 AIDS

XII NCERT Video Course 30E


8.4 Cancer

XII NCERT Video Course 30F


8.5 Drugs and Alcohol Abuse
Opioids
Cannabinoids
8.5.1 Adolescence and Drug/Alcohol Abuse
8.5.2 Addiction and Dependence
8.5.3 Effects of Drug/Alcohol Abuse
8.5.4 Prevention and Control

XII NCERT Video Course 31A



9.1 Animal Husbandry
9.1.1 Management of Farms and Farm Animals
9.1.1.1 Dairy Farm Management
9.1.1.2 Poultry Farm Management

XII NCERT Video Course 31B


9.1.2 Animal Breeding
Inbreeding
Out-breeding
Out-crossing
Interspecific hybridisation:Interspecific hybridisation:
Controlled breeding experiments

XII NCERT Video Course 31C


9.1.3 Bee-keeping
9.1.4 Fisheries

XII NCERT Video Course 31D


9.2 Plant Breeding
9.2.1 What is Plant Breeding?
Collection of variability
Evaluation and selection of parents
Cross hybridisation among the selected parents
Selection and testing of superior recombinants
Testing, release and commercialisation of new cultivars
9.2.2 Plant Breeding for Disease Resistance
Methods of breeding for disease resistance
Mutation
9.2.3 Plant Breeding for Developing Resistance to Insect Pests
9.2.4 Plant Breeding for Improved Food Quality
Biofortification

XII NCERT Video Course 31E


9.3 Single Cell Proteins

XII NCERT Video Course 31F


9.4 Tissue Culture

XII NCERT Video Course 32A



10.1 Microbes in Household Products
10.2 Microbes in Industrial Products
10.2.1 Fermented Beverages
10.2.2 Antibiotics
10.2.3 Chemicals, Enzymes and other Bioactive Molecules

XII NCERT Video Course 32B


10.3 Microbes in Sewage Treatment
Primary treatment
Secondary treatment or Biological treatment
10.4 Microbes in Production of Biogas

XII NCERT Video Course 32C


10.5 Microbes as Biocontrol Agents
Biological control of pests and diseases

XII NCERT Video Course 32D


10.6 Microbes as Biofertilisers

XII NCERT Video Course 33A



11.1 Principles of Biotechnology
Genetic engineering
11.2 Tools of Recombinant DNA Technology
11.2.1 Restriction Enzymes
11.2.2 Cloning Vectors
Origin of replication (ori)
Selectable marker
Cloning sites:
Vectors for cloning genes in plants and animals
11.2.3 Competent Host (For Transformation with Recombinant DNA)

XII NCERT Video Course 33B


11.3 Processes of Recombinant DNA Technology
11.3.1 Isolation of the Genetic Material (DNA)
11.3.2 Cutting of DNA at Specific Locations
11.3.3 Amplification of Gene of Interest using PCR
11.3.4 Insertion of Recombinant DNA into the Host Cell/Organism
11.3.5 Obtaining the Foreign Gene Product
11.3.6 Downstream Processing

XII NCERT Video Course 34A



12.1 Biotechnological Applications in Agriculture
Bt Cotton:
Pest Resistant Plants

XII NCERT Video Course 34B


12.2 Biotechnological Applications in Medicine
12.2.1 Genetically Engineered Insulin
12.2.2 Gene Therapy
12.2.3 Molecular Diagnosis

XII NCERT Video Course 34C


12.3 Transgenic Animals
Normal physiology and development
Study of disease
Biological products
Vaccine safety
Chemical safety testing

XII NCERT Video Course 34D


12.4 Ethical Issues
Biopiracy

XII NCERT Video Course 35A


 
13.1 Organism and Its Environment
13.1.1 Major Abiotic Factors
Temperature
Water
Light
Soil

XII NCERT Video Course 35B


13.1.2 Responses to Abiotic Factors
Regulate:
Conform:
Migrate
Suspend:
13.1.3 Adaptations

XII NCERT Video Course 35C


13.2 Populations
13.2.1 Population Attributes
13.2.2 Population Growth
Natality
Mortality
Immigration
Emigration
Growth Models
Exponential growth
Logistic growth
13.2.3 Life History Variation

XII NCERT Video Course 35D


13.2.4 Population Interactions
Predation
Competition
Parasitism
Commensalism
Mutualism

XII NCERT Video Course 36A



14.1 Ecosystem–Structure and Function
14.2. Productivity
14.3 Decomposition

XII NCERT Video Course 36B


14.4 Energy Flow
14.5 Ecological Pyramids

XII NCERT Video Course 36C


14.6 Ecological Succession
14.6.1 Succession of Plants

XII NCERT Video Course 36D


14.7 Nutrient Cycling
14.7.1 Ecosystem – Carbon Cycle
14.7.2 Ecosystem – Phosphorus Cycle

XII NCERT Video Course 36E


14.8 Ecosystem Services

XII NCERT Video Course 37A



15.1 Biodiversity
Genetic diversit
Ecological diversity:
Ecological diversity:
15.1.1 How Many Species are there on Earth and How Many in India?

XII NCERT Video Course 37B


15.1.2 Patterns of Biodiversity
Latitudinal gradients
Species-Area relationships:
15.1.3 The importance of Species Diversity to the Ecosystem

XII NCERT Video Course 37C


15.1.4 Loss of Biodiversity
Causes of biodiversity losses:
(i) Habitat loss and fragmentation:
(ii) Over-exploitation:
(iii) Alien species invasions:
(iv) Co-extinctions:

XII NCERT Video Course 37D


15.2 Biodiversity Conservation
15.2.1 Why Should We Conserve Biodiversity?
15.2.2 How do we conserve Biodiversity?
In situ conservation
Ex situ Conservation

XII NCERT Video Course 38A



16.1 Air Pollution and Its Control
16.1.1 Controlling Vehicular Air Pollution: A Case Study of Delhi

XII NCERT Video Course 38A


16.2 Water Pollution and Its Control
16.2.1 Domestic Sewage and Industrial Effluents
16.2.2 A Case Study of Integrated Waste Water Treatment

XII NCERT Video Course 38C


16.5 Radioactive Wastes

XII NCERT Video Course 38D


16.6 Greenhouse Effect and Global Warming
16.7 Ozone Depletion in the Stratosphere
16.8 Degradation by Improper Resource Utilisation and Maintenance

XII NCERT Video Course 38E


16.9 Deforestation
16.9.1 Case Study of People’s Participation in Conservation of Forests

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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