Topics
Reproduction in Lower and Higher Plants
- Reproduction in Plant
- Mode of Reproduction in Plant
- Asexual Reproduction in Plant
- Vegetative Reproduction
- Natural Vegetative Reproduction
- Artificial Vegetative Reproduction - Conventional Method
- Sexual Reproduction in Flowering Plants
- Pre-fertilization in Plant: Structure and Events
- Pre-fertilization in Plant: Stamen (Male Reproductive Unit)
- Pre-fertilization in Plant: Microsporangium
- Structure of Microspore Or Pollen Grain
- Pre-fertilization in Plant: Pistil (Female Reproductive Unit)
- Pre-fertilization in Plant: Megasporangium
- Pre-fertilization in Plant: Formation of Embryo Sac
- Pollination
- Self Pollination (Autogamy)
- Cross Pollination
- Cross Pollination
- Agents of Pollination
- Outbreeding Devices
- Pollen Pistil Interaction
- Double Fertilization and Triple Fusion in Plant
- Post Fertilisation in Plant: Structures and Events
- Development of Endosperm
- Post Fertilization in Plant: Development of Embryo (Embryogeny)
- Formation of Seed and Fruit
- Apomixis
- Parthenocarpy
- Polyembryony
Reproduction in Lower and Higher Animals
- Reproduction in Animal and Human
- Mode of Reproduction in Animal
- Asexual Reproduction in Animal
- Sexual Reproduction in Animals
- Human Reproductive System
- The Male Reproductive System
- The Female Reproductive System
- Menstrual Cycle (Ovarian Cycle)
- Gametogenesis
- Fertilization in Human
- Syngamy
- Embryonic Development in Human
- Implantation in Human
- Pregnancy in Humans
- Placenta (Growth) in Human
- Parturition (Birth) in Human
- Lactation in Human
- Reproductive Health
- Population Stabilisation and Birth Control
- Medical Termination of Pregnancy (MTP)
- Sexually Transmitted Diseases (STD)
- Infertility
Inheritance and Variation
- Heredity
- Inheritance
- Gregor Johann Mendel – Father of Genetics
- Genes and Genetic
- Mendelian Inheritance - Mendel’s Laws of Heredity
- Back Cross and Test Cross
- Deviations from Mendel’s Findings
- Chromosomal Theory of Inheritance
- Chromosomes - The Carriers of Heredity
- Linkage and Crossing Over
- Autosomal Inheritance
- Sex Linked Inheritance
- Sex Determination
- Genetic Disorders
Molecular Basis of Inheritance
Origin and Evolution of Life
- Origin and Evolution of Universe and Earth
- Theories of Origin of Life
- Chemical Evolution of Life (Self-assembly Theory of the Origin of Life)
- Evolution
- Darwin’s Theory of Natural Selection
- Mutation Theory
- Modern Synthetic Theory of Evolution
- Mechanism of Organic Evolution
- Hardy Weinberg’s Principle
- Adaptive Radiation
- Evidences for Biological Evolution
- Speciation
- Geological Time Scale
- Origin and Evolution of Man
Plant Water Relation
- Plant Water Relation
- Properties of Water
- Water and Mineral Absorption by Root
- Characteristics of Roots for Absorbing Water
- Water Available to Roots for Absorption
- Means of Transport in Plants
- Concept of Imbibition
- Simple Diffusion
- Concept of Osmosis
- Osmotic Pressure
- Facilitated Diffusion
- Turgidity and Flaccidity (Plasmolysis)
- Active Transport
- Passive Transport
- Water Potential (ψ)
- Path of Water Across the Root
- Translocation of Water (Ascent of Sap)
- Translocation of Mineral Ions
- Transport of Food
- Transpiration
- Kinds of Transpiration
- Structure of Stomatal Apparatus
- Significance of Transpiration
Plant Growth and Mineral Nutrition
- Plant Growth
- Phases of Plant Growth
- Conditions Necessary for Plant Growth
- Plant Growth Rate
- Types of Plant Growth
- Plant Growth Curve
- Differentiation, De-differentiation, Re- Differentiation
- Plant Development
- Plant Plasticity
- Plant Hormones
- Types of Plant Hormones: Auxins
- Types of Plant Hormones: Gibberellins
- Types of Plant Hormones: Cytokinins
- Types of Plant Hormones: Ethylene
- Types of Plant Hormones: Abscisic Acid (ABA)
- Photoperiodism
- Vernalization (Yarovization)
- Plant Mineral Nutrition
- Nitrogen Cycle
Respiration and Circulation
- Respiration
- Organs of Respiratory Exchange
- Human Respiratory System
- Breathing – Respiratory Cycle
- Regulation of Respiration
- Modified Respiratory Movements
- Disorders of Respiratory System
- Transportation in Living Organisms
- Circulation
- Types of Blood Circulation
- Types of Blood Circulation
- Blood Circulatory System in Human
- Composition of Blood: Plasma (The Liquid Portion of Blood)
- Composition of Blood: Red Blood Cells (Erythrocytes)
- Composition of Blood: White Blood Cells (Leukocytes)
- Composition of Blood: Blood Platelets (Thrombocytes)
- Function of Platelets - Clotting of Blood (Coagulation)
- Human Heart
- Circulation of Blood in the Heart: Cardiac Cycle
- Blood Vessels – Arteries, Veins, and Capillaries
- Blood Pressure (B.P.)
- Electrocardiogram (ECG)
- Lymph and Lymphatic System
Control and Co-ordination
- Control and Co-ordination
- Nervous System in Hydra
- Nervous System in Planaria (Flatworm)
- Neural Tissue
- Neuron (Or Nerve Cell) and Its Types
- Neuroglial Cells (Or Glial Cells)
- Neuron as Structural and Functional Unit of Neural System
- Nerve Fibres
- Synapse
- Transmission of Nerve Impulse
- Human Nervous System
- Central Nervous System (CNS)
- The Human Brain
- Central Nervous System (CNS): Structure of Human Brain
- The Spinal Cord
- Reflex and Reflex Action
- Reflex Arc
- Peripheral Nervous System (PNS)
- Sensory Receptors
- Human Eye: Structure of the Eye
- Working of the Human Eye
- Human Ear
- Disorders of Nervous System
- Hormones
- Human Endocrine System
- The Hypothalamus
- Pituitary Gland or Hypophysis Gland
- The Pineal Gland
- Thyroid Gland
- Parathyroid Gland
- Thymus Gland
- Adrenal Gland (Suprarenal Gland)
- Pancreas (Islets of Langerhans)
- Reproductive Glands (Gonads)
Human Health and Diseases
- Defence System in Our Body: Immune System
- Immunity
- Types of Immunity
- Vaccination and Immunization
- Structure of Antibody
- Disease
- Categories of Disease
- Protozoan Diseases
- Helminthic Diseases
- Bacterial Diseases
- Viral Diseases
- Fungal Diseases
- Vector Borne Diseases
- Cancer
- Sexually Transmitted Diseases (STD)
- Adolescence
- Addiction
- Drug Abuse
Enhancement of Food Production
- Improvement in Food Production
- Plant Breeding
- Tissue Culture
- Single Cell Protein (SCP)
- Biofortification
- Animal Husbandry (Livestock)
- Animal Breeding
- Dairy Farming
- Poultry Farming
- Apiculture (Bee Farming)
- Pisciculture (Fish Farming)
- Sericulture
- Lac Culture
- Microbes in Human Welfare
- Microbes in Industrial Production
- Microbes in Sewage Treatment
- Microbes in Energy Generation
- Microbes as Biocontrol Agents
- Microbes as Biofertilizers
Biotechnology
Organisms and Populations
Ecosystems and Energy Flow
Biodiversity, Conservation and Environmental Issues
- Biodiversity
- Levels of Biodiversity
- Patterns of Biodiversity
- Biodiversity Current Scenario
- Loss of Biodiversity
- Conservation of Wildlife
- Biological Diversity Act, 2002
- Environmental Issues
- Air Pollution and Its Causes
- Effects of Air Pollution
- Prevention of Air Pollution
- Noise Pollution
- Measures to Limit Noise Pollution
- Water Pollution and Its Causes
- Effects of Water Pollution
- Prevention of Water Pollution
- Green House Effect
- Preventive Measures of Green House Effect
- Global Warming
- Preventive Measures of Global Warming
- Ozone Layer Depletion
- Deforestation and Its Causes
- Mission Harit Maharashtra
Excretion and Osmoregulation
Human Reproduction
- Gametogenesis
- Spermatogenesis
- Structure of human spermatozoan
- Oogenesis
- Structure of ovum
notes
Gametogenesis:
- Gametogenesis is the process of formation of gametes i.e., sperms and ovary from the primary sex organs (i.e., the testis in the males and the ovaries in the females) in all sexually reproducing organisms.
- Meiosis plays the most significant role in the process of gametogenesis.
- Gametogenesis includes spermatogenesis and oogenesis.
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